Index: tests/.expect/KRfunctions.arm64.txt
===================================================================
--- tests/.expect/KRfunctions.arm64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/KRfunctions.arm64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -98,5 +98,5 @@
     __attribute__ ((unused)) signed int _X11_retval_f15i_1;
 }
-const signed int _X4fredFi___1(){
+const signed int _X4fredFi___1(void){
     __attribute__ ((unused)) const signed int _X12_retval_fredKi_1;
     signed int *(*_X1xFPi_ii__2)(signed int __param_0, signed int __param_1);
Index: tests/.expect/KRfunctions.x64.txt
===================================================================
--- tests/.expect/KRfunctions.x64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/KRfunctions.x64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -98,5 +98,5 @@
     __attribute__ ((unused)) signed int _X11_retval_f15i_1;
 }
-const signed int _X4fredFi___1(){
+const signed int _X4fredFi___1(void){
     __attribute__ ((unused)) const signed int _X12_retval_fredKi_1;
     signed int *(*_X1xFPi_ii__2)(signed int __param_0, signed int __param_1);
Index: tests/.expect/KRfunctions.x86.txt
===================================================================
--- tests/.expect/KRfunctions.x86.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/KRfunctions.x86.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -98,5 +98,5 @@
     __attribute__ ((unused)) signed int _X11_retval_f15i_1;
 }
-const signed int _X4fredFi___1(){
+const signed int _X4fredFi___1(void){
     __attribute__ ((unused)) const signed int _X12_retval_fredKi_1;
     signed int *(*_X1xFPi_ii__2)(signed int __param_0, signed int __param_1);
Index: tests/.expect/attributes.arm64.txt
===================================================================
--- tests/.expect/attributes.arm64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/attributes.arm64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -1,3 +1,3 @@
-signed int _X2laFi___1(){
+signed int _X2laFi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_lai_1;
     {
@@ -1179,5 +1179,5 @@
 
 }
-__attribute__ ((unused)) signed int _X1fFi___1() asm ( "xyz" );
+__attribute__ ((unused)) signed int _X1fFi___1(void) asm ( "xyz" );
 __attribute__ ((used,used)) const signed int _X3vd1Ki_1;
 __attribute__ ((used,unused)) const signed int _X3vd2Ki_1;
@@ -1186,14 +1186,14 @@
 __attribute__ ((used,used,used)) const signed int _X3vd5A0Ki_1[((unsigned long int )5)];
 __attribute__ ((used,used,unused,used)) const signed int _X3vd6A0Ki_1[((unsigned long int )5)];
-__attribute__ ((used,used,used,used)) const signed int (*_X3vd7Fi___1)();
-__attribute__ ((used,used,unused,used,used)) const signed int (*_X3vd8Fi___1)();
-__attribute__ ((used,used,used,used)) const signed int (*_X3vd9Fi___1)();
-__attribute__ ((used,used,unused,used,used)) const signed int (*_X4vd10Fi___1)();
-__attribute__ ((unused,used)) signed int _X2f1Fi___1();
-__attribute__ ((unused)) signed int _X2f1Fi___1(){
+__attribute__ ((used,used,used,used)) const signed int (*_X3vd7Fi___1)(void);
+__attribute__ ((used,used,unused,used,used)) const signed int (*_X3vd8Fi___1)(void);
+__attribute__ ((used,used,used,used)) const signed int (*_X3vd9Fi___1)(void);
+__attribute__ ((used,used,unused,used,used)) const signed int (*_X4vd10Fi___1)(void);
+__attribute__ ((unused,used)) signed int _X2f1Fi___1(void);
+__attribute__ ((unused)) signed int _X2f1Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f1i_1;
 }
-__attribute__ ((unused,unused,unused,used)) signed int **const _X2f2FPPi___1();
-__attribute__ ((unused,unused,unused)) signed int **const _X2f2FPPi___1(){
+__attribute__ ((unused,unused,unused,used)) signed int **const _X2f2FPPi___1(void);
+__attribute__ ((unused,unused,unused)) signed int **const _X2f2FPPi___1(void){
     __attribute__ ((unused)) signed int **const _X10_retval_f2KPPi_1;
 }
@@ -1206,15 +1206,15 @@
     __attribute__ ((unused)) signed int (*_X10_retval_f6PA0i_1)[];
 }
-__attribute__ ((unused,used,unused)) signed int (*_X2f7FFi_i____1())(signed int __param_0);
-__attribute__ ((unused,unused)) signed int (*_X2f8FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,used,unused)) signed int (*_X2f7FFi_i____1(void))(signed int __param_0);
+__attribute__ ((unused,unused)) signed int (*_X2f8FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X10_retval_f8Fi_i__1)(signed int __param_0);
 }
-__attribute__ ((unused,unused)) signed int (*_X2f9FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,unused)) signed int (*_X2f9FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X10_retval_f9Fi_i__1)(signed int __param_0);
 }
-__attribute__ ((unused,unused)) signed int (*_X3f10FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,unused)) signed int (*_X3f10FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X11_retval_f10Fi_i__1)(signed int __param_0);
 }
-signed int _X3vtrFi___1(){
+signed int _X3vtrFi___1(void){
     __attribute__ ((unused)) signed int _X11_retval_vtri_1;
     __attribute__ ((unused,unused,used)) signed int _X2t1i_2;
@@ -1223,6 +1223,6 @@
     __attribute__ ((unused,unused,unused,unused,unused)) signed int **_X2t4A0PPi_2[((unsigned long int )5)];
     __attribute__ ((unused,unused,unused,unused,unused,unused)) signed int **_X2t5A0PPi_2[((unsigned long int )5)];
-    __attribute__ ((unused,unused,unused)) signed int _X2t6Fi___2();
-    __attribute__ ((unused,unused,unused,unused)) signed int *_X2t6FPi___2();
+    __attribute__ ((unused,unused,unused)) signed int _X2t6Fi___2(void);
+    __attribute__ ((unused,unused,unused,unused)) signed int *_X2t6FPi___2(void);
 }
 signed int _X4ipd1Fi_ii__1(__attribute__ ((unused,unused,unused)) signed int _X1pi_1, __attribute__ ((unused,unused,unused)) signed int _X1qi_1);
@@ -1238,6 +1238,6 @@
     __attribute__ ((unused)) signed int _X12_retval_ipd3i_1;
 }
-signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)());
-signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)()){
+signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(void), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)(void));
+signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(void), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)(void)){
     __attribute__ ((unused)) signed int _X12_retval_ipd4i_1;
 }
@@ -1246,8 +1246,8 @@
 signed int _X4tpr3Fi_Pi__1(__attribute__ ((unused,unused,unused)) signed int *_X3FooPi_1);
 signed int _X4tpr4Fi_Fi_Pi___1(__attribute__ ((unused,unused)) signed int (*__anonymous_object2)(signed int __param_0[((unsigned long int )5)]));
-signed int _X4tpr5Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)());
-signed int _X4tpr6Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)());
+signed int _X4tpr5Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)(void));
+signed int _X4tpr6Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)(void));
 signed int _X4tpr7Fi_Fi_Fi_i____1(__attribute__ ((unused,unused)) signed int (*__anonymous_object3)(signed int (*__param_0)(signed int __param_0)));
-signed int _X2adFi___1(){
+signed int _X2adFi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_adi_1;
     __attribute__ ((used,unused)) signed int _X3ad1i_2;
@@ -1256,5 +1256,5 @@
     __attribute__ ((unused,unused,unused,unused,unused)) signed int (*_X3ad4PA0i_2)[((unsigned long int )10)];
     __attribute__ ((unused,unused,unused,unused,used)) signed int _X3ad5i_2;
-    __attribute__ ((unused,unused,unused,unused,unused)) signed int _X3ad6Fi___2();
+    __attribute__ ((unused,unused,unused,unused,unused)) signed int _X3ad6Fi___2(void);
     {
         ((void)sizeof(__attribute__ ((unused,unused)) signed int ));
@@ -1274,5 +1274,5 @@
 
     {
-        ((void)sizeof(__attribute__ ((unused,unused,unused)) signed int ()));
+        ((void)sizeof(__attribute__ ((unused,unused,unused)) signed int (void)));
     }
 
@@ -1348,7 +1348,7 @@
 signed int _X4apd2Fi_PPiPPi__1(__attribute__ ((unused,unused,unused,unused)) signed int **__anonymous_object6, __attribute__ ((unused,unused,unused,unused)) signed int **__anonymous_object7);
 signed int _X4apd3Fi_PiPi__1(__attribute__ ((unused,unused,unused)) signed int *__anonymous_object8, __attribute__ ((unused,unused,unused)) signed int *__anonymous_object9);
-signed int _X4apd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object10)(), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object11)());
+signed int _X4apd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object10)(void), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object11)(void));
 signed int _X4apd5Fi_Fi_i_Fi_i___1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object12)(signed int __param_0), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object13)(signed int __param_0));
-signed int _X4apd6Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object14)(), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object15)());
+signed int _X4apd6Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object14)(void), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object15)(void));
 signed int _X4apd7Fi_Fi_i_Fi_i___1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object16)(__attribute__ ((unused)) signed int __param_0), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object17)(__attribute__ ((unused)) signed int __param_0));
 struct Vad {
Index: tests/.expect/attributes.x64.txt
===================================================================
--- tests/.expect/attributes.x64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/attributes.x64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -1,3 +1,3 @@
-signed int _X2laFi___1(){
+signed int _X2laFi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_lai_1;
     {
@@ -1179,5 +1179,5 @@
 
 }
-__attribute__ ((unused)) signed int _X1fFi___1() asm ( "xyz" );
+__attribute__ ((unused)) signed int _X1fFi___1(void) asm ( "xyz" );
 __attribute__ ((used,used)) const signed int _X3vd1Ki_1;
 __attribute__ ((used,unused)) const signed int _X3vd2Ki_1;
@@ -1186,14 +1186,14 @@
 __attribute__ ((used,used,used)) const signed int _X3vd5A0Ki_1[((unsigned long int )5)];
 __attribute__ ((used,used,unused,used)) const signed int _X3vd6A0Ki_1[((unsigned long int )5)];
-__attribute__ ((used,used,used,used)) const signed int (*_X3vd7Fi___1)();
-__attribute__ ((used,used,unused,used,used)) const signed int (*_X3vd8Fi___1)();
-__attribute__ ((used,used,used,used)) const signed int (*_X3vd9Fi___1)();
-__attribute__ ((used,used,unused,used,used)) const signed int (*_X4vd10Fi___1)();
-__attribute__ ((unused,used)) signed int _X2f1Fi___1();
-__attribute__ ((unused)) signed int _X2f1Fi___1(){
+__attribute__ ((used,used,used,used)) const signed int (*_X3vd7Fi___1)(void);
+__attribute__ ((used,used,unused,used,used)) const signed int (*_X3vd8Fi___1)(void);
+__attribute__ ((used,used,used,used)) const signed int (*_X3vd9Fi___1)(void);
+__attribute__ ((used,used,unused,used,used)) const signed int (*_X4vd10Fi___1)(void);
+__attribute__ ((unused,used)) signed int _X2f1Fi___1(void);
+__attribute__ ((unused)) signed int _X2f1Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f1i_1;
 }
-__attribute__ ((unused,unused,unused,used)) signed int **const _X2f2FPPi___1();
-__attribute__ ((unused,unused,unused)) signed int **const _X2f2FPPi___1(){
+__attribute__ ((unused,unused,unused,used)) signed int **const _X2f2FPPi___1(void);
+__attribute__ ((unused,unused,unused)) signed int **const _X2f2FPPi___1(void){
     __attribute__ ((unused)) signed int **const _X10_retval_f2KPPi_1;
 }
@@ -1206,15 +1206,15 @@
     __attribute__ ((unused)) signed int (*_X10_retval_f6PA0i_1)[];
 }
-__attribute__ ((unused,used,unused)) signed int (*_X2f7FFi_i____1())(signed int __param_0);
-__attribute__ ((unused,unused)) signed int (*_X2f8FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,used,unused)) signed int (*_X2f7FFi_i____1(void))(signed int __param_0);
+__attribute__ ((unused,unused)) signed int (*_X2f8FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X10_retval_f8Fi_i__1)(signed int __param_0);
 }
-__attribute__ ((unused,unused)) signed int (*_X2f9FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,unused)) signed int (*_X2f9FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X10_retval_f9Fi_i__1)(signed int __param_0);
 }
-__attribute__ ((unused,unused)) signed int (*_X3f10FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,unused)) signed int (*_X3f10FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X11_retval_f10Fi_i__1)(signed int __param_0);
 }
-signed int _X3vtrFi___1(){
+signed int _X3vtrFi___1(void){
     __attribute__ ((unused)) signed int _X11_retval_vtri_1;
     __attribute__ ((unused,unused,used)) signed int _X2t1i_2;
@@ -1223,6 +1223,6 @@
     __attribute__ ((unused,unused,unused,unused,unused)) signed int **_X2t4A0PPi_2[((unsigned long int )5)];
     __attribute__ ((unused,unused,unused,unused,unused,unused)) signed int **_X2t5A0PPi_2[((unsigned long int )5)];
-    __attribute__ ((unused,unused,unused)) signed int _X2t6Fi___2();
-    __attribute__ ((unused,unused,unused,unused)) signed int *_X2t6FPi___2();
+    __attribute__ ((unused,unused,unused)) signed int _X2t6Fi___2(void);
+    __attribute__ ((unused,unused,unused,unused)) signed int *_X2t6FPi___2(void);
 }
 signed int _X4ipd1Fi_ii__1(__attribute__ ((unused,unused,unused)) signed int _X1pi_1, __attribute__ ((unused,unused,unused)) signed int _X1qi_1);
@@ -1238,6 +1238,6 @@
     __attribute__ ((unused)) signed int _X12_retval_ipd3i_1;
 }
-signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)());
-signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)()){
+signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(void), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)(void));
+signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(void), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)(void)){
     __attribute__ ((unused)) signed int _X12_retval_ipd4i_1;
 }
@@ -1246,8 +1246,8 @@
 signed int _X4tpr3Fi_Pi__1(__attribute__ ((unused,unused,unused)) signed int *_X3FooPi_1);
 signed int _X4tpr4Fi_Fi_Pi___1(__attribute__ ((unused,unused)) signed int (*__anonymous_object2)(signed int __param_0[((unsigned long int )5)]));
-signed int _X4tpr5Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)());
-signed int _X4tpr6Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)());
+signed int _X4tpr5Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)(void));
+signed int _X4tpr6Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)(void));
 signed int _X4tpr7Fi_Fi_Fi_i____1(__attribute__ ((unused,unused)) signed int (*__anonymous_object3)(signed int (*__param_0)(signed int __param_0)));
-signed int _X2adFi___1(){
+signed int _X2adFi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_adi_1;
     __attribute__ ((used,unused)) signed int _X3ad1i_2;
@@ -1256,5 +1256,5 @@
     __attribute__ ((unused,unused,unused,unused,unused)) signed int (*_X3ad4PA0i_2)[((unsigned long int )10)];
     __attribute__ ((unused,unused,unused,unused,used)) signed int _X3ad5i_2;
-    __attribute__ ((unused,unused,unused,unused,unused)) signed int _X3ad6Fi___2();
+    __attribute__ ((unused,unused,unused,unused,unused)) signed int _X3ad6Fi___2(void);
     {
         ((void)sizeof(__attribute__ ((unused,unused)) signed int ));
@@ -1274,5 +1274,5 @@
 
     {
-        ((void)sizeof(__attribute__ ((unused,unused,unused)) signed int ()));
+        ((void)sizeof(__attribute__ ((unused,unused,unused)) signed int (void)));
     }
 
@@ -1348,7 +1348,7 @@
 signed int _X4apd2Fi_PPiPPi__1(__attribute__ ((unused,unused,unused,unused)) signed int **__anonymous_object6, __attribute__ ((unused,unused,unused,unused)) signed int **__anonymous_object7);
 signed int _X4apd3Fi_PiPi__1(__attribute__ ((unused,unused,unused)) signed int *__anonymous_object8, __attribute__ ((unused,unused,unused)) signed int *__anonymous_object9);
-signed int _X4apd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object10)(), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object11)());
+signed int _X4apd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object10)(void), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object11)(void));
 signed int _X4apd5Fi_Fi_i_Fi_i___1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object12)(signed int __param_0), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object13)(signed int __param_0));
-signed int _X4apd6Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object14)(), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object15)());
+signed int _X4apd6Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object14)(void), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object15)(void));
 signed int _X4apd7Fi_Fi_i_Fi_i___1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object16)(__attribute__ ((unused)) signed int __param_0), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object17)(__attribute__ ((unused)) signed int __param_0));
 struct Vad {
Index: tests/.expect/attributes.x86.txt
===================================================================
--- tests/.expect/attributes.x86.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/attributes.x86.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -1,3 +1,3 @@
-signed int _X2laFi___1(){
+signed int _X2laFi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_lai_1;
     {
@@ -1179,5 +1179,5 @@
 
 }
-__attribute__ ((unused)) signed int _X1fFi___1() asm ( "xyz" );
+__attribute__ ((unused)) signed int _X1fFi___1(void) asm ( "xyz" );
 __attribute__ ((used,used)) const signed int _X3vd1Ki_1;
 __attribute__ ((used,unused)) const signed int _X3vd2Ki_1;
@@ -1186,14 +1186,14 @@
 __attribute__ ((used,used,used)) const signed int _X3vd5A0Ki_1[((unsigned int )5)];
 __attribute__ ((used,used,unused,used)) const signed int _X3vd6A0Ki_1[((unsigned int )5)];
-__attribute__ ((used,used,used,used)) const signed int (*_X3vd7Fi___1)();
-__attribute__ ((used,used,unused,used,used)) const signed int (*_X3vd8Fi___1)();
-__attribute__ ((used,used,used,used)) const signed int (*_X3vd9Fi___1)();
-__attribute__ ((used,used,unused,used,used)) const signed int (*_X4vd10Fi___1)();
-__attribute__ ((unused,used)) signed int _X2f1Fi___1();
-__attribute__ ((unused)) signed int _X2f1Fi___1(){
+__attribute__ ((used,used,used,used)) const signed int (*_X3vd7Fi___1)(void);
+__attribute__ ((used,used,unused,used,used)) const signed int (*_X3vd8Fi___1)(void);
+__attribute__ ((used,used,used,used)) const signed int (*_X3vd9Fi___1)(void);
+__attribute__ ((used,used,unused,used,used)) const signed int (*_X4vd10Fi___1)(void);
+__attribute__ ((unused,used)) signed int _X2f1Fi___1(void);
+__attribute__ ((unused)) signed int _X2f1Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f1i_1;
 }
-__attribute__ ((unused,unused,unused,used)) signed int **const _X2f2FPPi___1();
-__attribute__ ((unused,unused,unused)) signed int **const _X2f2FPPi___1(){
+__attribute__ ((unused,unused,unused,used)) signed int **const _X2f2FPPi___1(void);
+__attribute__ ((unused,unused,unused)) signed int **const _X2f2FPPi___1(void){
     __attribute__ ((unused)) signed int **const _X10_retval_f2KPPi_1;
 }
@@ -1206,15 +1206,15 @@
     __attribute__ ((unused)) signed int (*_X10_retval_f6PA0i_1)[];
 }
-__attribute__ ((unused,used,unused)) signed int (*_X2f7FFi_i____1())(signed int __param_0);
-__attribute__ ((unused,unused)) signed int (*_X2f8FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,used,unused)) signed int (*_X2f7FFi_i____1(void))(signed int __param_0);
+__attribute__ ((unused,unused)) signed int (*_X2f8FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X10_retval_f8Fi_i__1)(signed int __param_0);
 }
-__attribute__ ((unused,unused)) signed int (*_X2f9FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,unused)) signed int (*_X2f9FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X10_retval_f9Fi_i__1)(signed int __param_0);
 }
-__attribute__ ((unused,unused)) signed int (*_X3f10FFi_i____1())(signed int __param_0){
+__attribute__ ((unused,unused)) signed int (*_X3f10FFi_i____1(void))(signed int __param_0){
     __attribute__ ((unused)) signed int (*_X11_retval_f10Fi_i__1)(signed int __param_0);
 }
-signed int _X3vtrFi___1(){
+signed int _X3vtrFi___1(void){
     __attribute__ ((unused)) signed int _X11_retval_vtri_1;
     __attribute__ ((unused,unused,used)) signed int _X2t1i_2;
@@ -1223,6 +1223,6 @@
     __attribute__ ((unused,unused,unused,unused,unused)) signed int **_X2t4A0PPi_2[((unsigned int )5)];
     __attribute__ ((unused,unused,unused,unused,unused,unused)) signed int **_X2t5A0PPi_2[((unsigned int )5)];
-    __attribute__ ((unused,unused,unused)) signed int _X2t6Fi___2();
-    __attribute__ ((unused,unused,unused,unused)) signed int *_X2t6FPi___2();
+    __attribute__ ((unused,unused,unused)) signed int _X2t6Fi___2(void);
+    __attribute__ ((unused,unused,unused,unused)) signed int *_X2t6FPi___2(void);
 }
 signed int _X4ipd1Fi_ii__1(__attribute__ ((unused,unused,unused)) signed int _X1pi_1, __attribute__ ((unused,unused,unused)) signed int _X1qi_1);
@@ -1238,6 +1238,6 @@
     __attribute__ ((unused)) signed int _X12_retval_ipd3i_1;
 }
-signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)());
-signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)()){
+signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(void), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)(void));
+signed int _X4ipd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X1pFi___1)(void), __attribute__ ((unused,unused,unused)) signed int (*_X1qFi___1)(void)){
     __attribute__ ((unused)) signed int _X12_retval_ipd4i_1;
 }
@@ -1246,8 +1246,8 @@
 signed int _X4tpr3Fi_Pi__1(__attribute__ ((unused,unused,unused)) signed int *_X3FooPi_1);
 signed int _X4tpr4Fi_Fi_Pi___1(__attribute__ ((unused,unused)) signed int (*__anonymous_object2)(signed int __param_0[((unsigned int )5)]));
-signed int _X4tpr5Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)());
-signed int _X4tpr6Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)());
+signed int _X4tpr5Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)(void));
+signed int _X4tpr6Fi_Fi____1(__attribute__ ((unused,unused,unused)) signed int (*_X3FooFi___1)(void));
 signed int _X4tpr7Fi_Fi_Fi_i____1(__attribute__ ((unused,unused)) signed int (*__anonymous_object3)(signed int (*__param_0)(signed int __param_0)));
-signed int _X2adFi___1(){
+signed int _X2adFi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_adi_1;
     __attribute__ ((used,unused)) signed int _X3ad1i_2;
@@ -1256,5 +1256,5 @@
     __attribute__ ((unused,unused,unused,unused,unused)) signed int (*_X3ad4PA0i_2)[((unsigned int )10)];
     __attribute__ ((unused,unused,unused,unused,used)) signed int _X3ad5i_2;
-    __attribute__ ((unused,unused,unused,unused,unused)) signed int _X3ad6Fi___2();
+    __attribute__ ((unused,unused,unused,unused,unused)) signed int _X3ad6Fi___2(void);
     {
         ((void)sizeof(__attribute__ ((unused,unused)) signed int ));
@@ -1274,5 +1274,5 @@
 
     {
-        ((void)sizeof(__attribute__ ((unused,unused,unused)) signed int ()));
+        ((void)sizeof(__attribute__ ((unused,unused,unused)) signed int (void)));
     }
 
@@ -1348,7 +1348,7 @@
 signed int _X4apd2Fi_PPiPPi__1(__attribute__ ((unused,unused,unused,unused)) signed int **__anonymous_object6, __attribute__ ((unused,unused,unused,unused)) signed int **__anonymous_object7);
 signed int _X4apd3Fi_PiPi__1(__attribute__ ((unused,unused,unused)) signed int *__anonymous_object8, __attribute__ ((unused,unused,unused)) signed int *__anonymous_object9);
-signed int _X4apd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object10)(), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object11)());
+signed int _X4apd4Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object10)(void), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object11)(void));
 signed int _X4apd5Fi_Fi_i_Fi_i___1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object12)(signed int __param_0), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object13)(signed int __param_0));
-signed int _X4apd6Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object14)(), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object15)());
+signed int _X4apd6Fi_Fi__Fi____1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object14)(void), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object15)(void));
 signed int _X4apd7Fi_Fi_i_Fi_i___1(__attribute__ ((unused,unused,unused)) signed int (*__anonymous_object16)(__attribute__ ((unused)) signed int __param_0), __attribute__ ((unused,unused,unused)) signed int (*__anonymous_object17)(__attribute__ ((unused)) signed int __param_0));
 struct Vad {
Index: tests/.expect/castError.txt
===================================================================
--- tests/.expect/castError.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/castError.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -21,10 +21,8 @@
 Cost ( 1, 0, 0, 0, 0, 0, 0, 0 ): Explicit Cast of:
       Variable Expression: f: function
-        accepting unspecified arguments
       ... returning nothing
 
       ... with resolved type:
         pointer to function
-          accepting unspecified arguments
         ... returning nothing
 
Index: tests/.expect/declarationSpecifier.arm64.txt
===================================================================
--- tests/.expect/declarationSpecifier.arm64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/declarationSpecifier.arm64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -647,20 +647,20 @@
 _Thread_local signed int _X3x37i_1;
 __thread signed int _X3x38i_1;
-static inline volatile const signed int _X3f11Fi___1();
-static inline volatile const signed int _X3f12Fi___1();
-static inline volatile const signed int _X3f13Fi___1();
-static inline volatile const signed int _X3f14Fi___1();
-static inline volatile const signed int _X3f15Fi___1();
-static inline volatile const signed int _X3f16Fi___1();
-static inline volatile const signed int _X3f17Fi___1();
-static inline volatile const signed int _X3f18Fi___1();
-static inline volatile const signed short int _X3f21Fs___1();
-static inline volatile const signed short int _X3f22Fs___1();
-static inline volatile const signed short int _X3f23Fs___1();
-static inline volatile const signed short int _X3f24Fs___1();
-static inline volatile const signed short int _X3f25Fs___1();
-static inline volatile const signed short int _X3f26Fs___1();
-static inline volatile const signed short int _X3f27Fs___1();
-static inline volatile const signed short int _X3f28Fs___1();
+static inline volatile const signed int _X3f11Fi___1(void);
+static inline volatile const signed int _X3f12Fi___1(void);
+static inline volatile const signed int _X3f13Fi___1(void);
+static inline volatile const signed int _X3f14Fi___1(void);
+static inline volatile const signed int _X3f15Fi___1(void);
+static inline volatile const signed int _X3f16Fi___1(void);
+static inline volatile const signed int _X3f17Fi___1(void);
+static inline volatile const signed int _X3f18Fi___1(void);
+static inline volatile const signed short int _X3f21Fs___1(void);
+static inline volatile const signed short int _X3f22Fs___1(void);
+static inline volatile const signed short int _X3f23Fs___1(void);
+static inline volatile const signed short int _X3f24Fs___1(void);
+static inline volatile const signed short int _X3f25Fs___1(void);
+static inline volatile const signed short int _X3f26Fs___1(void);
+static inline volatile const signed short int _X3f27Fs___1(void);
+static inline volatile const signed short int _X3f28Fs___1(void);
 struct __anonymous14 {
     signed int _X1ii_1;
@@ -707,5 +707,5 @@
 
 }
-static inline volatile const struct __anonymous14 _X3f31FS13__anonymous14___1();
+static inline volatile const struct __anonymous14 _X3f31FS13__anonymous14___1(void);
 struct __anonymous15 {
     signed int _X1ii_1;
@@ -752,5 +752,5 @@
 
 }
-static inline volatile const struct __anonymous15 _X3f32FS13__anonymous15___1();
+static inline volatile const struct __anonymous15 _X3f32FS13__anonymous15___1(void);
 struct __anonymous16 {
     signed int _X1ii_1;
@@ -797,5 +797,5 @@
 
 }
-static inline volatile const struct __anonymous16 _X3f33FS13__anonymous16___1();
+static inline volatile const struct __anonymous16 _X3f33FS13__anonymous16___1(void);
 struct __anonymous17 {
     signed int _X1ii_1;
@@ -842,5 +842,5 @@
 
 }
-static inline volatile const struct __anonymous17 _X3f34FS13__anonymous17___1();
+static inline volatile const struct __anonymous17 _X3f34FS13__anonymous17___1(void);
 struct __anonymous18 {
     signed int _X1ii_1;
@@ -887,5 +887,5 @@
 
 }
-static inline volatile const struct __anonymous18 _X3f35FS13__anonymous18___1();
+static inline volatile const struct __anonymous18 _X3f35FS13__anonymous18___1(void);
 struct __anonymous19 {
     signed int _X1ii_1;
@@ -932,5 +932,5 @@
 
 }
-static inline volatile const struct __anonymous19 _X3f36FS13__anonymous19___1();
+static inline volatile const struct __anonymous19 _X3f36FS13__anonymous19___1(void);
 struct __anonymous20 {
     signed int _X1ii_1;
@@ -977,5 +977,5 @@
 
 }
-static inline volatile const struct __anonymous20 _X3f37FS13__anonymous20___1();
+static inline volatile const struct __anonymous20 _X3f37FS13__anonymous20___1(void);
 struct __anonymous21 {
     signed int _X1ii_1;
@@ -1022,13 +1022,13 @@
 
 }
-static inline volatile const struct __anonymous21 _X3f38FS13__anonymous21___1();
-static inline volatile const signed short int _X3f41Fs___1();
-static inline volatile const signed short int _X3f42Fs___1();
-static inline volatile const signed short int _X3f43Fs___1();
-static inline volatile const signed short int _X3f44Fs___1();
-static inline volatile const signed short int _X3f45Fs___1();
-static inline volatile const signed short int _X3f46Fs___1();
-static inline volatile const signed short int _X3f47Fs___1();
-static inline volatile const signed short int _X3f48Fs___1();
+static inline volatile const struct __anonymous21 _X3f38FS13__anonymous21___1(void);
+static inline volatile const signed short int _X3f41Fs___1(void);
+static inline volatile const signed short int _X3f42Fs___1(void);
+static inline volatile const signed short int _X3f43Fs___1(void);
+static inline volatile const signed short int _X3f44Fs___1(void);
+static inline volatile const signed short int _X3f45Fs___1(void);
+static inline volatile const signed short int _X3f46Fs___1(void);
+static inline volatile const signed short int _X3f47Fs___1(void);
+static inline volatile const signed short int _X3f48Fs___1(void);
 signed int _X4mainFi_iPPKc__1(signed int _X4argci_1, const char **_X4argvPPKc_1){
     __attribute__ ((unused)) signed int _X12_retval_maini_1;
Index: tests/.expect/declarationSpecifier.x64.txt
===================================================================
--- tests/.expect/declarationSpecifier.x64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/declarationSpecifier.x64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -647,20 +647,20 @@
 _Thread_local signed int _X3x37i_1;
 __thread signed int _X3x38i_1;
-static inline volatile const signed int _X3f11Fi___1();
-static inline volatile const signed int _X3f12Fi___1();
-static inline volatile const signed int _X3f13Fi___1();
-static inline volatile const signed int _X3f14Fi___1();
-static inline volatile const signed int _X3f15Fi___1();
-static inline volatile const signed int _X3f16Fi___1();
-static inline volatile const signed int _X3f17Fi___1();
-static inline volatile const signed int _X3f18Fi___1();
-static inline volatile const signed short int _X3f21Fs___1();
-static inline volatile const signed short int _X3f22Fs___1();
-static inline volatile const signed short int _X3f23Fs___1();
-static inline volatile const signed short int _X3f24Fs___1();
-static inline volatile const signed short int _X3f25Fs___1();
-static inline volatile const signed short int _X3f26Fs___1();
-static inline volatile const signed short int _X3f27Fs___1();
-static inline volatile const signed short int _X3f28Fs___1();
+static inline volatile const signed int _X3f11Fi___1(void);
+static inline volatile const signed int _X3f12Fi___1(void);
+static inline volatile const signed int _X3f13Fi___1(void);
+static inline volatile const signed int _X3f14Fi___1(void);
+static inline volatile const signed int _X3f15Fi___1(void);
+static inline volatile const signed int _X3f16Fi___1(void);
+static inline volatile const signed int _X3f17Fi___1(void);
+static inline volatile const signed int _X3f18Fi___1(void);
+static inline volatile const signed short int _X3f21Fs___1(void);
+static inline volatile const signed short int _X3f22Fs___1(void);
+static inline volatile const signed short int _X3f23Fs___1(void);
+static inline volatile const signed short int _X3f24Fs___1(void);
+static inline volatile const signed short int _X3f25Fs___1(void);
+static inline volatile const signed short int _X3f26Fs___1(void);
+static inline volatile const signed short int _X3f27Fs___1(void);
+static inline volatile const signed short int _X3f28Fs___1(void);
 struct __anonymous14 {
     signed int _X1ii_1;
@@ -707,5 +707,5 @@
 
 }
-static inline volatile const struct __anonymous14 _X3f31FS13__anonymous14___1();
+static inline volatile const struct __anonymous14 _X3f31FS13__anonymous14___1(void);
 struct __anonymous15 {
     signed int _X1ii_1;
@@ -752,5 +752,5 @@
 
 }
-static inline volatile const struct __anonymous15 _X3f32FS13__anonymous15___1();
+static inline volatile const struct __anonymous15 _X3f32FS13__anonymous15___1(void);
 struct __anonymous16 {
     signed int _X1ii_1;
@@ -797,5 +797,5 @@
 
 }
-static inline volatile const struct __anonymous16 _X3f33FS13__anonymous16___1();
+static inline volatile const struct __anonymous16 _X3f33FS13__anonymous16___1(void);
 struct __anonymous17 {
     signed int _X1ii_1;
@@ -842,5 +842,5 @@
 
 }
-static inline volatile const struct __anonymous17 _X3f34FS13__anonymous17___1();
+static inline volatile const struct __anonymous17 _X3f34FS13__anonymous17___1(void);
 struct __anonymous18 {
     signed int _X1ii_1;
@@ -887,5 +887,5 @@
 
 }
-static inline volatile const struct __anonymous18 _X3f35FS13__anonymous18___1();
+static inline volatile const struct __anonymous18 _X3f35FS13__anonymous18___1(void);
 struct __anonymous19 {
     signed int _X1ii_1;
@@ -932,5 +932,5 @@
 
 }
-static inline volatile const struct __anonymous19 _X3f36FS13__anonymous19___1();
+static inline volatile const struct __anonymous19 _X3f36FS13__anonymous19___1(void);
 struct __anonymous20 {
     signed int _X1ii_1;
@@ -977,5 +977,5 @@
 
 }
-static inline volatile const struct __anonymous20 _X3f37FS13__anonymous20___1();
+static inline volatile const struct __anonymous20 _X3f37FS13__anonymous20___1(void);
 struct __anonymous21 {
     signed int _X1ii_1;
@@ -1022,13 +1022,13 @@
 
 }
-static inline volatile const struct __anonymous21 _X3f38FS13__anonymous21___1();
-static inline volatile const signed short int _X3f41Fs___1();
-static inline volatile const signed short int _X3f42Fs___1();
-static inline volatile const signed short int _X3f43Fs___1();
-static inline volatile const signed short int _X3f44Fs___1();
-static inline volatile const signed short int _X3f45Fs___1();
-static inline volatile const signed short int _X3f46Fs___1();
-static inline volatile const signed short int _X3f47Fs___1();
-static inline volatile const signed short int _X3f48Fs___1();
+static inline volatile const struct __anonymous21 _X3f38FS13__anonymous21___1(void);
+static inline volatile const signed short int _X3f41Fs___1(void);
+static inline volatile const signed short int _X3f42Fs___1(void);
+static inline volatile const signed short int _X3f43Fs___1(void);
+static inline volatile const signed short int _X3f44Fs___1(void);
+static inline volatile const signed short int _X3f45Fs___1(void);
+static inline volatile const signed short int _X3f46Fs___1(void);
+static inline volatile const signed short int _X3f47Fs___1(void);
+static inline volatile const signed short int _X3f48Fs___1(void);
 signed int _X4mainFi_iPPKc__1(signed int _X4argci_1, const char **_X4argvPPKc_1){
     __attribute__ ((unused)) signed int _X12_retval_maini_1;
Index: tests/.expect/declarationSpecifier.x86.txt
===================================================================
--- tests/.expect/declarationSpecifier.x86.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/declarationSpecifier.x86.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -647,20 +647,20 @@
 _Thread_local signed int _X3x37i_1;
 __thread signed int _X3x38i_1;
-static inline volatile const signed int _X3f11Fi___1();
-static inline volatile const signed int _X3f12Fi___1();
-static inline volatile const signed int _X3f13Fi___1();
-static inline volatile const signed int _X3f14Fi___1();
-static inline volatile const signed int _X3f15Fi___1();
-static inline volatile const signed int _X3f16Fi___1();
-static inline volatile const signed int _X3f17Fi___1();
-static inline volatile const signed int _X3f18Fi___1();
-static inline volatile const signed short int _X3f21Fs___1();
-static inline volatile const signed short int _X3f22Fs___1();
-static inline volatile const signed short int _X3f23Fs___1();
-static inline volatile const signed short int _X3f24Fs___1();
-static inline volatile const signed short int _X3f25Fs___1();
-static inline volatile const signed short int _X3f26Fs___1();
-static inline volatile const signed short int _X3f27Fs___1();
-static inline volatile const signed short int _X3f28Fs___1();
+static inline volatile const signed int _X3f11Fi___1(void);
+static inline volatile const signed int _X3f12Fi___1(void);
+static inline volatile const signed int _X3f13Fi___1(void);
+static inline volatile const signed int _X3f14Fi___1(void);
+static inline volatile const signed int _X3f15Fi___1(void);
+static inline volatile const signed int _X3f16Fi___1(void);
+static inline volatile const signed int _X3f17Fi___1(void);
+static inline volatile const signed int _X3f18Fi___1(void);
+static inline volatile const signed short int _X3f21Fs___1(void);
+static inline volatile const signed short int _X3f22Fs___1(void);
+static inline volatile const signed short int _X3f23Fs___1(void);
+static inline volatile const signed short int _X3f24Fs___1(void);
+static inline volatile const signed short int _X3f25Fs___1(void);
+static inline volatile const signed short int _X3f26Fs___1(void);
+static inline volatile const signed short int _X3f27Fs___1(void);
+static inline volatile const signed short int _X3f28Fs___1(void);
 struct __anonymous14 {
     signed int _X1ii_1;
@@ -707,5 +707,5 @@
 
 }
-static inline volatile const struct __anonymous14 _X3f31FS13__anonymous14___1();
+static inline volatile const struct __anonymous14 _X3f31FS13__anonymous14___1(void);
 struct __anonymous15 {
     signed int _X1ii_1;
@@ -752,5 +752,5 @@
 
 }
-static inline volatile const struct __anonymous15 _X3f32FS13__anonymous15___1();
+static inline volatile const struct __anonymous15 _X3f32FS13__anonymous15___1(void);
 struct __anonymous16 {
     signed int _X1ii_1;
@@ -797,5 +797,5 @@
 
 }
-static inline volatile const struct __anonymous16 _X3f33FS13__anonymous16___1();
+static inline volatile const struct __anonymous16 _X3f33FS13__anonymous16___1(void);
 struct __anonymous17 {
     signed int _X1ii_1;
@@ -842,5 +842,5 @@
 
 }
-static inline volatile const struct __anonymous17 _X3f34FS13__anonymous17___1();
+static inline volatile const struct __anonymous17 _X3f34FS13__anonymous17___1(void);
 struct __anonymous18 {
     signed int _X1ii_1;
@@ -887,5 +887,5 @@
 
 }
-static inline volatile const struct __anonymous18 _X3f35FS13__anonymous18___1();
+static inline volatile const struct __anonymous18 _X3f35FS13__anonymous18___1(void);
 struct __anonymous19 {
     signed int _X1ii_1;
@@ -932,5 +932,5 @@
 
 }
-static inline volatile const struct __anonymous19 _X3f36FS13__anonymous19___1();
+static inline volatile const struct __anonymous19 _X3f36FS13__anonymous19___1(void);
 struct __anonymous20 {
     signed int _X1ii_1;
@@ -977,5 +977,5 @@
 
 }
-static inline volatile const struct __anonymous20 _X3f37FS13__anonymous20___1();
+static inline volatile const struct __anonymous20 _X3f37FS13__anonymous20___1(void);
 struct __anonymous21 {
     signed int _X1ii_1;
@@ -1022,13 +1022,13 @@
 
 }
-static inline volatile const struct __anonymous21 _X3f38FS13__anonymous21___1();
-static inline volatile const signed short int _X3f41Fs___1();
-static inline volatile const signed short int _X3f42Fs___1();
-static inline volatile const signed short int _X3f43Fs___1();
-static inline volatile const signed short int _X3f44Fs___1();
-static inline volatile const signed short int _X3f45Fs___1();
-static inline volatile const signed short int _X3f46Fs___1();
-static inline volatile const signed short int _X3f47Fs___1();
-static inline volatile const signed short int _X3f48Fs___1();
+static inline volatile const struct __anonymous21 _X3f38FS13__anonymous21___1(void);
+static inline volatile const signed short int _X3f41Fs___1(void);
+static inline volatile const signed short int _X3f42Fs___1(void);
+static inline volatile const signed short int _X3f43Fs___1(void);
+static inline volatile const signed short int _X3f44Fs___1(void);
+static inline volatile const signed short int _X3f45Fs___1(void);
+static inline volatile const signed short int _X3f46Fs___1(void);
+static inline volatile const signed short int _X3f47Fs___1(void);
+static inline volatile const signed short int _X3f48Fs___1(void);
 signed int _X4mainFi_iPPKc__1(signed int _X4argci_1, const char **_X4argvPPKc_1){
     __attribute__ ((unused)) signed int _X12_retval_maini_1;
Index: tests/.expect/extension.arm64.txt
===================================================================
--- tests/.expect/extension.arm64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/extension.arm64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -161,5 +161,5 @@
     _X1BKM1E_1,
 };
-__extension__ signed int _X1fFi___1();
+__extension__ signed int _X1fFi___1(void);
 __extension__ signed int i;
 __extension__ signed int j;
Index: tests/.expect/extension.x64.txt
===================================================================
--- tests/.expect/extension.x64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/extension.x64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -161,5 +161,5 @@
     _X1BKM1E_1,
 };
-__extension__ signed int _X1fFi___1();
+__extension__ signed int _X1fFi___1(void);
 __extension__ signed int i;
 __extension__ signed int j;
Index: tests/.expect/extension.x86.txt
===================================================================
--- tests/.expect/extension.x86.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/extension.x86.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -161,5 +161,5 @@
     _X1BKM1E_1,
 };
-__extension__ signed int _X1fFi___1();
+__extension__ signed int _X1fFi___1(void);
 __extension__ signed int i;
 __extension__ signed int j;
Index: tests/.expect/functions.arm64.txt
===================================================================
--- tests/.expect/functions.arm64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/functions.arm64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -16,38 +16,38 @@
 
 }
-signed int _X2f1Fi___1(){
+signed int _X2f1Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f1i_1;
 }
-signed int _X2f2Fi___1(){
+signed int _X2f2Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f2i_1;
 }
-signed int (*_X2f3FFi_____1())(){
-    __attribute__ ((unused)) signed int (*_X10_retval_f3Fi___1)();
-}
-signed int *_X2f4FPi___1(){
+signed int (*_X2f3FFi_____1(void))(void){
+    __attribute__ ((unused)) signed int (*_X10_retval_f3Fi___1)(void);
+}
+signed int *_X2f4FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f4Pi_1;
 }
-signed int (*_X2f5FFi_____1())(){
-    __attribute__ ((unused)) signed int (*_X10_retval_f5Fi___1)();
-}
-signed int *_X2f6FPi___1(){
+signed int (*_X2f5FFi_____1(void))(void){
+    __attribute__ ((unused)) signed int (*_X10_retval_f5Fi___1)(void);
+}
+signed int *_X2f6FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f6Pi_1;
 }
-signed int *_X2f7FPi___1(){
+signed int *_X2f7FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f7Pi_1;
 }
-signed int **_X2f8FPPi___1(){
+signed int **_X2f8FPPi___1(void){
     __attribute__ ((unused)) signed int **_X10_retval_f8PPi_1;
 }
-signed int *const *_X2f9FPKPi___1(){
+signed int *const *_X2f9FPKPi___1(void){
     __attribute__ ((unused)) signed int *const *_X10_retval_f9PKPi_1;
 }
-signed int (*_X3f10FPA0i___1())[]{
+signed int (*_X3f10FPA0i___1(void))[]{
     __attribute__ ((unused)) signed int (*_X11_retval_f10PA0i_1)[];
 }
-signed int (*_X3f11FPA0A0i___1())[][((unsigned long int )3)]{
+signed int (*_X3f11FPA0A0i___1(void))[][((unsigned long int )3)]{
     __attribute__ ((unused)) signed int (*_X11_retval_f11PA0A0i_1)[][((unsigned long int )3)];
 }
-signed int (*_X3f12FPA0A0i___1())[][((unsigned long int )3)]{
+signed int (*_X3f12FPA0A0i___1(void))[][((unsigned long int )3)]{
     __attribute__ ((unused)) signed int (*_X11_retval_f12PA0A0i_1)[][((unsigned long int )3)];
 }
@@ -64,17 +64,17 @@
     __attribute__ ((unused)) const signed int _X12_retval_fII4Ki_1;
 }
-signed int *_X4fII5FPi___1(){
+signed int *_X4fII5FPi___1(void){
     __attribute__ ((unused)) signed int *_X12_retval_fII5Pi_1;
 }
-signed int *const _X4fII6FPi___1(){
+signed int *const _X4fII6FPi___1(void){
     __attribute__ ((unused)) signed int *const _X12_retval_fII6KPi_1;
 }
-const signed long int *_X4fII7FPKl___1(){
+const signed long int *_X4fII7FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII7PKl_1;
 }
-static const signed long int *_X4fII8FPKl___1(){
+static const signed long int *_X4fII8FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII8PKl_1;
 }
-static const signed long int *_X4fII9FPKl___1(){
+static const signed long int *_X4fII9FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII9PKl_1;
 }
@@ -224,5 +224,5 @@
 signed int _X3f11Fi_i__1(signed int __anonymous_object34);
 signed int _X3f12Fi___1(void);
-const double _X4bar1Fd___1();
+const double _X4bar1Fd___1(void);
 const double _X4bar2Fd_i__1(signed int __anonymous_object35);
 const double _X4bar3Fd_d__1(double __anonymous_object36);
@@ -290,5 +290,5 @@
     signed int (*(*_X1pPA0Fi_i__2)[])(signed int __param_0);
 }
-static const signed int *_X2f1FPKi___1(){
+static const signed int *_X2f1FPKi___1(void){
     __attribute__ ((unused)) const signed int *_X10_retval_f1PKi_1;
 }
@@ -310,6 +310,6 @@
     __attribute__ ((unused)) const struct _conc__tuple2_3 _X10_retval_f5KT2PiKi_1;
 }
-signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(signed int (*__anonymous_object42)(), signed int *(*__anonymous_object43)(), signed int **(*__anonymous_object44)(), signed int *const *(*__anonymous_object45)(), signed int *const *const (*__anonymous_object46)(), signed int *__anonymous_object47, signed int __anonymous_object48[10], signed int **__anonymous_object49, signed int *__anonymous_object50[10], signed int ***__anonymous_object51, signed int **__anonymous_object52[10], signed int *const **__anonymous_object53, signed int *const *__anonymous_object54[10], signed int *const *const *__anonymous_object55, signed int *const *const __anonymous_object56[10]);
-signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(__attribute__ ((unused)) signed int (*__anonymous_object57)(), __attribute__ ((unused)) signed int *(*__anonymous_object58)(), __attribute__ ((unused)) signed int **(*__anonymous_object59)(), __attribute__ ((unused)) signed int *const *(*__anonymous_object60)(), __attribute__ ((unused)) signed int *const *const (*__anonymous_object61)(), __attribute__ ((unused)) signed int *__anonymous_object62, __attribute__ ((unused)) signed int __anonymous_object63[10], __attribute__ ((unused)) signed int **__anonymous_object64, __attribute__ ((unused)) signed int *__anonymous_object65[10], __attribute__ ((unused)) signed int ***__anonymous_object66, __attribute__ ((unused)) signed int **__anonymous_object67[10], __attribute__ ((unused)) signed int *const **__anonymous_object68, __attribute__ ((unused)) signed int *const *__anonymous_object69[10], __attribute__ ((unused)) signed int *const *const *__anonymous_object70, __attribute__ ((unused)) signed int *const *const __anonymous_object71[10]){
+signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(signed int (*__anonymous_object42)(void), signed int *(*__anonymous_object43)(void), signed int **(*__anonymous_object44)(void), signed int *const *(*__anonymous_object45)(void), signed int *const *const (*__anonymous_object46)(void), signed int *__anonymous_object47, signed int __anonymous_object48[10], signed int **__anonymous_object49, signed int *__anonymous_object50[10], signed int ***__anonymous_object51, signed int **__anonymous_object52[10], signed int *const **__anonymous_object53, signed int *const *__anonymous_object54[10], signed int *const *const *__anonymous_object55, signed int *const *const __anonymous_object56[10]);
+signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(__attribute__ ((unused)) signed int (*__anonymous_object57)(void), __attribute__ ((unused)) signed int *(*__anonymous_object58)(void), __attribute__ ((unused)) signed int **(*__anonymous_object59)(void), __attribute__ ((unused)) signed int *const *(*__anonymous_object60)(void), __attribute__ ((unused)) signed int *const *const (*__anonymous_object61)(void), __attribute__ ((unused)) signed int *__anonymous_object62, __attribute__ ((unused)) signed int __anonymous_object63[10], __attribute__ ((unused)) signed int **__anonymous_object64, __attribute__ ((unused)) signed int *__anonymous_object65[10], __attribute__ ((unused)) signed int ***__anonymous_object66, __attribute__ ((unused)) signed int **__anonymous_object67[10], __attribute__ ((unused)) signed int *const **__anonymous_object68, __attribute__ ((unused)) signed int *const *__anonymous_object69[10], __attribute__ ((unused)) signed int *const *const *__anonymous_object70, __attribute__ ((unused)) signed int *const *const __anonymous_object71[10]){
     __attribute__ ((unused)) signed int _X9_retval_fi_1;
 }
Index: tests/.expect/functions.x64.txt
===================================================================
--- tests/.expect/functions.x64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/functions.x64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -16,38 +16,38 @@
 
 }
-signed int _X2f1Fi___1(){
+signed int _X2f1Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f1i_1;
 }
-signed int _X2f2Fi___1(){
+signed int _X2f2Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f2i_1;
 }
-signed int (*_X2f3FFi_____1())(){
-    __attribute__ ((unused)) signed int (*_X10_retval_f3Fi___1)();
-}
-signed int *_X2f4FPi___1(){
+signed int (*_X2f3FFi_____1(void))(void){
+    __attribute__ ((unused)) signed int (*_X10_retval_f3Fi___1)(void);
+}
+signed int *_X2f4FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f4Pi_1;
 }
-signed int (*_X2f5FFi_____1())(){
-    __attribute__ ((unused)) signed int (*_X10_retval_f5Fi___1)();
-}
-signed int *_X2f6FPi___1(){
+signed int (*_X2f5FFi_____1(void))(void){
+    __attribute__ ((unused)) signed int (*_X10_retval_f5Fi___1)(void);
+}
+signed int *_X2f6FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f6Pi_1;
 }
-signed int *_X2f7FPi___1(){
+signed int *_X2f7FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f7Pi_1;
 }
-signed int **_X2f8FPPi___1(){
+signed int **_X2f8FPPi___1(void){
     __attribute__ ((unused)) signed int **_X10_retval_f8PPi_1;
 }
-signed int *const *_X2f9FPKPi___1(){
+signed int *const *_X2f9FPKPi___1(void){
     __attribute__ ((unused)) signed int *const *_X10_retval_f9PKPi_1;
 }
-signed int (*_X3f10FPA0i___1())[]{
+signed int (*_X3f10FPA0i___1(void))[]{
     __attribute__ ((unused)) signed int (*_X11_retval_f10PA0i_1)[];
 }
-signed int (*_X3f11FPA0A0i___1())[][((unsigned long int )3)]{
+signed int (*_X3f11FPA0A0i___1(void))[][((unsigned long int )3)]{
     __attribute__ ((unused)) signed int (*_X11_retval_f11PA0A0i_1)[][((unsigned long int )3)];
 }
-signed int (*_X3f12FPA0A0i___1())[][((unsigned long int )3)]{
+signed int (*_X3f12FPA0A0i___1(void))[][((unsigned long int )3)]{
     __attribute__ ((unused)) signed int (*_X11_retval_f12PA0A0i_1)[][((unsigned long int )3)];
 }
@@ -64,17 +64,17 @@
     __attribute__ ((unused)) const signed int _X12_retval_fII4Ki_1;
 }
-signed int *_X4fII5FPi___1(){
+signed int *_X4fII5FPi___1(void){
     __attribute__ ((unused)) signed int *_X12_retval_fII5Pi_1;
 }
-signed int *const _X4fII6FPi___1(){
+signed int *const _X4fII6FPi___1(void){
     __attribute__ ((unused)) signed int *const _X12_retval_fII6KPi_1;
 }
-const signed long int *_X4fII7FPKl___1(){
+const signed long int *_X4fII7FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII7PKl_1;
 }
-static const signed long int *_X4fII8FPKl___1(){
+static const signed long int *_X4fII8FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII8PKl_1;
 }
-static const signed long int *_X4fII9FPKl___1(){
+static const signed long int *_X4fII9FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII9PKl_1;
 }
@@ -224,5 +224,5 @@
 signed int _X3f11Fi_i__1(signed int __anonymous_object34);
 signed int _X3f12Fi___1(void);
-const double _X4bar1Fd___1();
+const double _X4bar1Fd___1(void);
 const double _X4bar2Fd_i__1(signed int __anonymous_object35);
 const double _X4bar3Fd_d__1(double __anonymous_object36);
@@ -290,5 +290,5 @@
     signed int (*(*_X1pPA0Fi_i__2)[])(signed int __param_0);
 }
-static const signed int *_X2f1FPKi___1(){
+static const signed int *_X2f1FPKi___1(void){
     __attribute__ ((unused)) const signed int *_X10_retval_f1PKi_1;
 }
@@ -310,6 +310,6 @@
     __attribute__ ((unused)) const struct _conc__tuple2_3 _X10_retval_f5KT2PiKi_1;
 }
-signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(signed int (*__anonymous_object42)(), signed int *(*__anonymous_object43)(), signed int **(*__anonymous_object44)(), signed int *const *(*__anonymous_object45)(), signed int *const *const (*__anonymous_object46)(), signed int *__anonymous_object47, signed int __anonymous_object48[10], signed int **__anonymous_object49, signed int *__anonymous_object50[10], signed int ***__anonymous_object51, signed int **__anonymous_object52[10], signed int *const **__anonymous_object53, signed int *const *__anonymous_object54[10], signed int *const *const *__anonymous_object55, signed int *const *const __anonymous_object56[10]);
-signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(__attribute__ ((unused)) signed int (*__anonymous_object57)(), __attribute__ ((unused)) signed int *(*__anonymous_object58)(), __attribute__ ((unused)) signed int **(*__anonymous_object59)(), __attribute__ ((unused)) signed int *const *(*__anonymous_object60)(), __attribute__ ((unused)) signed int *const *const (*__anonymous_object61)(), __attribute__ ((unused)) signed int *__anonymous_object62, __attribute__ ((unused)) signed int __anonymous_object63[10], __attribute__ ((unused)) signed int **__anonymous_object64, __attribute__ ((unused)) signed int *__anonymous_object65[10], __attribute__ ((unused)) signed int ***__anonymous_object66, __attribute__ ((unused)) signed int **__anonymous_object67[10], __attribute__ ((unused)) signed int *const **__anonymous_object68, __attribute__ ((unused)) signed int *const *__anonymous_object69[10], __attribute__ ((unused)) signed int *const *const *__anonymous_object70, __attribute__ ((unused)) signed int *const *const __anonymous_object71[10]){
+signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(signed int (*__anonymous_object42)(void), signed int *(*__anonymous_object43)(void), signed int **(*__anonymous_object44)(void), signed int *const *(*__anonymous_object45)(void), signed int *const *const (*__anonymous_object46)(void), signed int *__anonymous_object47, signed int __anonymous_object48[10], signed int **__anonymous_object49, signed int *__anonymous_object50[10], signed int ***__anonymous_object51, signed int **__anonymous_object52[10], signed int *const **__anonymous_object53, signed int *const *__anonymous_object54[10], signed int *const *const *__anonymous_object55, signed int *const *const __anonymous_object56[10]);
+signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(__attribute__ ((unused)) signed int (*__anonymous_object57)(void), __attribute__ ((unused)) signed int *(*__anonymous_object58)(void), __attribute__ ((unused)) signed int **(*__anonymous_object59)(void), __attribute__ ((unused)) signed int *const *(*__anonymous_object60)(void), __attribute__ ((unused)) signed int *const *const (*__anonymous_object61)(void), __attribute__ ((unused)) signed int *__anonymous_object62, __attribute__ ((unused)) signed int __anonymous_object63[10], __attribute__ ((unused)) signed int **__anonymous_object64, __attribute__ ((unused)) signed int *__anonymous_object65[10], __attribute__ ((unused)) signed int ***__anonymous_object66, __attribute__ ((unused)) signed int **__anonymous_object67[10], __attribute__ ((unused)) signed int *const **__anonymous_object68, __attribute__ ((unused)) signed int *const *__anonymous_object69[10], __attribute__ ((unused)) signed int *const *const *__anonymous_object70, __attribute__ ((unused)) signed int *const *const __anonymous_object71[10]){
     __attribute__ ((unused)) signed int _X9_retval_fi_1;
 }
Index: tests/.expect/functions.x86.txt
===================================================================
--- tests/.expect/functions.x86.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/functions.x86.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -16,38 +16,38 @@
 
 }
-signed int _X2f1Fi___1(){
+signed int _X2f1Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f1i_1;
 }
-signed int _X2f2Fi___1(){
+signed int _X2f2Fi___1(void){
     __attribute__ ((unused)) signed int _X10_retval_f2i_1;
 }
-signed int (*_X2f3FFi_____1())(){
-    __attribute__ ((unused)) signed int (*_X10_retval_f3Fi___1)();
-}
-signed int *_X2f4FPi___1(){
+signed int (*_X2f3FFi_____1(void))(void){
+    __attribute__ ((unused)) signed int (*_X10_retval_f3Fi___1)(void);
+}
+signed int *_X2f4FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f4Pi_1;
 }
-signed int (*_X2f5FFi_____1())(){
-    __attribute__ ((unused)) signed int (*_X10_retval_f5Fi___1)();
-}
-signed int *_X2f6FPi___1(){
+signed int (*_X2f5FFi_____1(void))(void){
+    __attribute__ ((unused)) signed int (*_X10_retval_f5Fi___1)(void);
+}
+signed int *_X2f6FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f6Pi_1;
 }
-signed int *_X2f7FPi___1(){
+signed int *_X2f7FPi___1(void){
     __attribute__ ((unused)) signed int *_X10_retval_f7Pi_1;
 }
-signed int **_X2f8FPPi___1(){
+signed int **_X2f8FPPi___1(void){
     __attribute__ ((unused)) signed int **_X10_retval_f8PPi_1;
 }
-signed int *const *_X2f9FPKPi___1(){
+signed int *const *_X2f9FPKPi___1(void){
     __attribute__ ((unused)) signed int *const *_X10_retval_f9PKPi_1;
 }
-signed int (*_X3f10FPA0i___1())[]{
+signed int (*_X3f10FPA0i___1(void))[]{
     __attribute__ ((unused)) signed int (*_X11_retval_f10PA0i_1)[];
 }
-signed int (*_X3f11FPA0A0i___1())[][((unsigned int )3)]{
+signed int (*_X3f11FPA0A0i___1(void))[][((unsigned int )3)]{
     __attribute__ ((unused)) signed int (*_X11_retval_f11PA0A0i_1)[][((unsigned int )3)];
 }
-signed int (*_X3f12FPA0A0i___1())[][((unsigned int )3)]{
+signed int (*_X3f12FPA0A0i___1(void))[][((unsigned int )3)]{
     __attribute__ ((unused)) signed int (*_X11_retval_f12PA0A0i_1)[][((unsigned int )3)];
 }
@@ -64,17 +64,17 @@
     __attribute__ ((unused)) const signed int _X12_retval_fII4Ki_1;
 }
-signed int *_X4fII5FPi___1(){
+signed int *_X4fII5FPi___1(void){
     __attribute__ ((unused)) signed int *_X12_retval_fII5Pi_1;
 }
-signed int *const _X4fII6FPi___1(){
+signed int *const _X4fII6FPi___1(void){
     __attribute__ ((unused)) signed int *const _X12_retval_fII6KPi_1;
 }
-const signed long int *_X4fII7FPKl___1(){
+const signed long int *_X4fII7FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII7PKl_1;
 }
-static const signed long int *_X4fII8FPKl___1(){
+static const signed long int *_X4fII8FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII8PKl_1;
 }
-static const signed long int *_X4fII9FPKl___1(){
+static const signed long int *_X4fII9FPKl___1(void){
     __attribute__ ((unused)) const signed long int *_X12_retval_fII9PKl_1;
 }
@@ -224,5 +224,5 @@
 signed int _X3f11Fi_i__1(signed int __anonymous_object34);
 signed int _X3f12Fi___1(void);
-const double _X4bar1Fd___1();
+const double _X4bar1Fd___1(void);
 const double _X4bar2Fd_i__1(signed int __anonymous_object35);
 const double _X4bar3Fd_d__1(double __anonymous_object36);
@@ -290,5 +290,5 @@
     signed int (*(*_X1pPA0Fi_i__2)[])(signed int __param_0);
 }
-static const signed int *_X2f1FPKi___1(){
+static const signed int *_X2f1FPKi___1(void){
     __attribute__ ((unused)) const signed int *_X10_retval_f1PKi_1;
 }
@@ -310,6 +310,6 @@
     __attribute__ ((unused)) const struct _conc__tuple2_3 _X10_retval_f5KT2PiKi_1;
 }
-signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(signed int (*__anonymous_object42)(), signed int *(*__anonymous_object43)(), signed int **(*__anonymous_object44)(), signed int *const *(*__anonymous_object45)(), signed int *const *const (*__anonymous_object46)(), signed int *__anonymous_object47, signed int __anonymous_object48[10], signed int **__anonymous_object49, signed int *__anonymous_object50[10], signed int ***__anonymous_object51, signed int **__anonymous_object52[10], signed int *const **__anonymous_object53, signed int *const *__anonymous_object54[10], signed int *const *const *__anonymous_object55, signed int *const *const __anonymous_object56[10]);
-signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(__attribute__ ((unused)) signed int (*__anonymous_object57)(), __attribute__ ((unused)) signed int *(*__anonymous_object58)(), __attribute__ ((unused)) signed int **(*__anonymous_object59)(), __attribute__ ((unused)) signed int *const *(*__anonymous_object60)(), __attribute__ ((unused)) signed int *const *const (*__anonymous_object61)(), __attribute__ ((unused)) signed int *__anonymous_object62, __attribute__ ((unused)) signed int __anonymous_object63[10], __attribute__ ((unused)) signed int **__anonymous_object64, __attribute__ ((unused)) signed int *__anonymous_object65[10], __attribute__ ((unused)) signed int ***__anonymous_object66, __attribute__ ((unused)) signed int **__anonymous_object67[10], __attribute__ ((unused)) signed int *const **__anonymous_object68, __attribute__ ((unused)) signed int *const *__anonymous_object69[10], __attribute__ ((unused)) signed int *const *const *__anonymous_object70, __attribute__ ((unused)) signed int *const *const __anonymous_object71[10]){
+signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(signed int (*__anonymous_object42)(void), signed int *(*__anonymous_object43)(void), signed int **(*__anonymous_object44)(void), signed int *const *(*__anonymous_object45)(void), signed int *const *const (*__anonymous_object46)(void), signed int *__anonymous_object47, signed int __anonymous_object48[10], signed int **__anonymous_object49, signed int *__anonymous_object50[10], signed int ***__anonymous_object51, signed int **__anonymous_object52[10], signed int *const **__anonymous_object53, signed int *const *__anonymous_object54[10], signed int *const *const *__anonymous_object55, signed int *const *const __anonymous_object56[10]);
+signed int _X1fFi_Fi__FPi__FPPi__FPKPi__FPKPi__PiPiPPiPPiPPPiPPPiPPKPiPPKPiPKPKPiPKPKPi__1(__attribute__ ((unused)) signed int (*__anonymous_object57)(void), __attribute__ ((unused)) signed int *(*__anonymous_object58)(void), __attribute__ ((unused)) signed int **(*__anonymous_object59)(void), __attribute__ ((unused)) signed int *const *(*__anonymous_object60)(void), __attribute__ ((unused)) signed int *const *const (*__anonymous_object61)(void), __attribute__ ((unused)) signed int *__anonymous_object62, __attribute__ ((unused)) signed int __anonymous_object63[10], __attribute__ ((unused)) signed int **__anonymous_object64, __attribute__ ((unused)) signed int *__anonymous_object65[10], __attribute__ ((unused)) signed int ***__anonymous_object66, __attribute__ ((unused)) signed int **__anonymous_object67[10], __attribute__ ((unused)) signed int *const **__anonymous_object68, __attribute__ ((unused)) signed int *const *__anonymous_object69[10], __attribute__ ((unused)) signed int *const *const *__anonymous_object70, __attribute__ ((unused)) signed int *const *const __anonymous_object71[10]){
     __attribute__ ((unused)) signed int _X9_retval_fi_1;
 }
Index: tests/.expect/gccExtensions.arm64.txt
===================================================================
--- tests/.expect/gccExtensions.arm64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/gccExtensions.arm64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -19,8 +19,8 @@
     const signed int _X2i2Ki_2;
     const signed int _X2i3Ki_2;
-    inline signed int _X2f1Fi___2(){
+    inline signed int _X2f1Fi___2(void){
         __attribute__ ((unused)) signed int _X10_retval_f1i_2;
     }
-    inline signed int _X2f2Fi___2(){
+    inline signed int _X2f2Fi___2(void){
         __attribute__ ((unused)) signed int _X10_retval_f2i_2;
     }
Index: tests/.expect/gccExtensions.x64.txt
===================================================================
--- tests/.expect/gccExtensions.x64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/gccExtensions.x64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -19,8 +19,8 @@
     const signed int _X2i2Ki_2;
     const signed int _X2i3Ki_2;
-    inline signed int _X2f1Fi___2(){
+    inline signed int _X2f1Fi___2(void){
         __attribute__ ((unused)) signed int _X10_retval_f1i_2;
     }
-    inline signed int _X2f2Fi___2(){
+    inline signed int _X2f2Fi___2(void){
         __attribute__ ((unused)) signed int _X10_retval_f2i_2;
     }
Index: tests/.expect/gccExtensions.x86.txt
===================================================================
--- tests/.expect/gccExtensions.x86.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/.expect/gccExtensions.x86.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -19,8 +19,8 @@
     const signed int _X2i2Ki_2;
     const signed int _X2i3Ki_2;
-    inline signed int _X2f1Fi___2(){
+    inline signed int _X2f1Fi___2(void){
         __attribute__ ((unused)) signed int _X10_retval_f1i_2;
     }
-    inline signed int _X2f2Fi___2(){
+    inline signed int _X2f2Fi___2(void){
         __attribute__ ((unused)) signed int _X10_retval_f2i_2;
     }
Index: tests/castError.cfa
===================================================================
--- tests/castError.cfa	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/castError.cfa	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -1,10 +1,10 @@
-// 
+//
 // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
 //
 // The contents of this file are covered under the licence agreement in the
 // file "LICENCE" distributed with Cforall.
-// 
+//
 // castError.cfa -- test invalid casts
-// 
+//
 // Author           : Peter A. Buhr
 // Created On       : Tue Feb 19 21:15:39 2019
@@ -12,5 +12,5 @@
 // Last Modified On : Tue Feb 19 21:16:44 2019
 // Update Count     : 1
-// 
+//
 
 forall(T) struct S { T p; };
Index: tests/errors/.expect/declaration.txt
===================================================================
--- tests/errors/.expect/declaration.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/errors/.expect/declaration.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -20,50 +20,60 @@
 
 errors/declaration.cfa:24:1 error: duplicate const qualifier(s) in declaration of f01: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:25:1 error: duplicate volatile qualifier(s) in declaration of f02: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:26:1 error: duplicate const qualifier(s) in declaration of f03: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:27:1 error: duplicate volatile qualifier(s) in declaration of f04: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:28:1 error: duplicate const qualifier(s) in declaration of f05: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:29:1 error: duplicate volatile qualifier(s) in declaration of f06: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:30:1 error: duplicate const qualifier(s) in declaration of f07: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:31:1 error: duplicate const volatile qualifier(s) in declaration of f08: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:33:1 error: duplicate const volatile qualifier(s) in declaration of f09: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const volatile int 
 
 
 errors/declaration.cfa:34:1 error: duplicate const qualifier(s), duplicate _Atomic qualifier(s), duplicate _Atomic qualifier(s), duplicate const restrict volatile qualifier(s) in declaration of f09: static inline function
-  with no parameters
+  with parameters 
+    void 
   returning const restrict volatile _Atomic int 
 
Index: tests/errors/.expect/signature.txt
===================================================================
--- tests/errors/.expect/signature.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/errors/.expect/signature.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -2,7 +2,7 @@
 errors/signature.cfa:3:1 error: Constructors, destructors, and assignment functions require at least one parameter.
 errors/signature.cfa:4:1 error: Constructors, destructors, and assignment functions require at least one parameter.
-errors/signature.cfa:5:1 error: First parameter of a constructor, destructor, or assignment function must be a reference.
-errors/signature.cfa:6:1 error: First parameter of a constructor, destructor, or assignment function must be a reference.
-errors/signature.cfa:7:1 error: First parameter of a constructor, destructor, or assignment function must be a reference.
+errors/signature.cfa:5:1 error: Constructors, destructors, and assignment functions require at least one parameter.
+errors/signature.cfa:6:1 error: Constructors, destructors, and assignment functions require at least one parameter.
+errors/signature.cfa:7:1 error: Constructors, destructors, and assignment functions require at least one parameter.
 errors/signature.cfa:10:1 error: First parameter of a constructor, destructor, or assignment function must be a reference.
 errors/signature.cfa:11:1 error: First parameter of a constructor, destructor, or assignment function must be a reference.
Index: tests/errors/declaration.cfa
===================================================================
--- tests/errors/declaration.cfa	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/errors/declaration.cfa	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -1,10 +1,10 @@
-// 
+//
 // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
 //
 // The contents of this file are covered under the licence agreement in the
 // file "LICENCE" distributed with Cforall.
-// 
-// declarationErrors.cfa -- 
-// 
+//
+// declarationErrors.cfa --
+//
 // Author           : Peter A. Buhr
 // Created On       : Wed Aug 17 08:23:43 2016
@@ -12,5 +12,5 @@
 // Last Modified On : Tue Nov  6 17:52:47 2018
 // Update Count     : 32
-// 
+//
 
 static short int volatile static const x1;				// duplicate static
Index: tests/gccExtensions.cfa
===================================================================
--- tests/gccExtensions.cfa	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/gccExtensions.cfa	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -1,10 +1,10 @@
-// 
+//
 // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
 //
 // The contents of this file are covered under the licence agreement in the
 // file "LICENCE" distributed with Cforall.
-// 
-// gccExtensions.cfa -- 
-// 
+//
+// gccExtensions.cfa --
+//
 // Author           : Peter A. Buhr
 // Created On       : Sun Aug 14 17:28:17 2016
@@ -12,5 +12,5 @@
 // Last Modified On : Mon Aug  5 18:04:37 2019
 // Update Count     : 28
-// 
+//
 
 extern int x asm( "xx" );
Index: tests/meta/.expect/arch.arm64.txt
===================================================================
--- tests/meta/.expect/arch.arm64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/meta/.expect/arch.arm64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -21,10 +21,8 @@
 Cost ( 1, 0, 0, 0, 0, 0, 0, 0 ): Explicit Cast of:
       Variable Expression: FA64: function
-        accepting unspecified arguments
       ... returning nothing
 
       ... with resolved type:
         pointer to function
-          accepting unspecified arguments
         ... returning nothing
 
Index: tests/meta/.expect/arch.x64.txt
===================================================================
--- tests/meta/.expect/arch.x64.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/meta/.expect/arch.x64.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -21,10 +21,8 @@
 Cost ( 1, 0, 0, 0, 0, 0, 0, 0 ): Explicit Cast of:
       Variable Expression: FX64: function
-        accepting unspecified arguments
       ... returning nothing
 
       ... with resolved type:
         pointer to function
-          accepting unspecified arguments
         ... returning nothing
 
Index: tests/meta/.expect/arch.x86.txt
===================================================================
--- tests/meta/.expect/arch.x86.txt	(revision 790f251c0ea859080a393e58e8d860b2b6afe0fb)
+++ tests/meta/.expect/arch.x86.txt	(revision 9bb6c5f932cd0dc4fdb4d3e7678e9286959c06a0)
@@ -21,10 +21,8 @@
 Cost ( 1, 0, 0, 0, 0, 0, 0, 0 ): Explicit Cast of:
       Variable Expression: FX86: function
-        accepting unspecified arguments
       ... returning nothing
 
       ... with resolved type:
         pointer to function
-          accepting unspecified arguments
         ... returning nothing