Changeset df699e0 for doc/theses/mike_brooks_MMath/programs/bkgd-carray-mdim.c

Timestamp:

May 24, 2024, 2:18:56 PM (3 months ago)

Author:

Peter A. Buhr <pabuhr@…>

Branches:

master

Children:

a4808ad

Parents:

c721105

Message:

program updates to match text

File:

• doc/theses/mike_brooks_MMath/programs/bkgd-carray-mdim.c (modified) (3 diffs)

doc/theses/mike_brooks_MMath/programs/bkgd-carray-mdim.c

@@ -14 +14 @@
 
 int main() {
-        float a[3][10];
-        static_assert(sizeof(float)==4);                        $\C{// floats (atomic elements) are 4 bytes}$
-        static_assert(sizeof(void*)==8);                        $\C{// pointers are 8 bytes}$
+        float ar[3][10];
+        static_assert(sizeof(float) == 4);                      $\C{// floats (atomic elements) are 4 bytes}$
+        static_assert(sizeof(void*) == 8);                      $\C{// pointers are 8 bytes}$
 
-        static_assert(sizeof( a ) == 120);                      $\C{// the array, float[3][10]}$
-        static_assert(sizeof( a[0] ) == 40);            $\C{// its first element, float[10]}$
-        static_assert(sizeof( a[0][0] ) == 4 );         $\C{// its first grand element, float}$
+        static_assert(sizeof(ar) == 120);                       $\C{// the array, float[3][10]}$
+        static_assert(sizeof(ar[0]) == 40);                     $\C{// its first element, float[10]}$
+        static_assert(sizeof(ar[0][0]) == 4);           $\C{// its first grand element, float}$
 
-        static_assert(sizeof(&(a)) == 8);                       $\C{// pointer to the array, float(*)[3][10]}$
-        static_assert(sizeof(&(a[0])) == 8  );          $\C{// pointer to its first element, float(*)[10]}$
-        static_assert(sizeof(&(a[0][0])) == 8  );       $\C{// pointer to its first grand-element, float*}$
+        static_assert(sizeof(&(ar)) == 8);                      $\C{// pointer to the array, float(*)[3][10]}$
+        static_assert(sizeof(&(ar[0])) == 8);           $\C{// pointer to its first element, float(*)[10]}$
+        static_assert(sizeof(&(ar[0][0])) == 8);        $\C{// pointer to its first grand-element, float*}$
 
-        float (*pa  )[3][10] = &(a        );
-        float (*pa0 )   [10] = &(a[0]   );
-        float  *pa00             = &(a[0][0]);
+        float (*pa)[3][10] = &(ar);
+        float (*pa0)[10] = &(ar[0]);
+        float *pa00 = &(ar[0][0]);
 
-        static_assert((void*)&a == (void*)&(a[0]   ));
-        static_assert((void*)&a == (void*)&(a[0][0]));
+        static_assert((void*)&ar == (void*)&(ar[0] ));
+        static_assert((void*)&ar == (void*)&(ar[0][0]));
 
-        assert( (void *) pa == (void *) pa0  );
+        assert( (void *) pa == (void *) pa0 );
         assert( (void *) pa == (void *) pa00 );
 
@@ -41 +41 @@
                 b[i] = malloc(sizeof(float[10]));
         }
-        a[2][3];
+        ar[2][3];
         b[2][3];
 /*
@@ -50 +50 @@
 
 // Local Variables: //
-// compile-command: "sed -f sedcmd bkgd-carray-mdim.c | gcc -x c -" //
+// compile-command: "sed -f sedcmd bkgd-carray-mdim.c | gcc-11 -Wall -Wextra -x c -" //
 // End: //