ADT
arm-eh
ast-experimental
enum
forall-pointer-decay
jacob/cs343-translation
new-ast
new-ast-unique-expr
pthread-emulation
qualifiedEnum
Last change
on this file since 7d0881c was f498c51, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago |
change printf to sout
|
-
Property mode
set to
100644
|
File size:
2.4 KB
|
Line | |
---|
1 | //
|
---|
2 | // Cforall Version 1.0.0 Copyright (C) 2018 University of Waterloo
|
---|
3 | //
|
---|
4 | // The contents of this file are covered under the licence agreement in the
|
---|
5 | // file "LICENCE" distributed with Cforall.
|
---|
6 | //
|
---|
7 | // fallthrough.cfa --
|
---|
8 | //
|
---|
9 | // Author : Rob Schluntz
|
---|
10 | // Created On : Wed Mar 14 10:06:25 2018
|
---|
11 | // Last Modified By : Peter A. Buhr
|
---|
12 | // Last Modified On : Mon Dec 24 11:24:35 2018
|
---|
13 | // Update Count : 22
|
---|
14 | //
|
---|
15 |
|
---|
16 | #include <fstream.hfa>
|
---|
17 |
|
---|
18 | void test(int choice) {
|
---|
19 | choose ( choice ) {
|
---|
20 | case 1:
|
---|
21 | sout | "case 1";
|
---|
22 | fallthru;
|
---|
23 | case 2:
|
---|
24 | sout | "case 2";
|
---|
25 | fallthru;
|
---|
26 | sout | "did not fallthru";
|
---|
27 | if ( 7 ) fallthru common2;
|
---|
28 | fallthru common1;
|
---|
29 | case 3:
|
---|
30 | sout | "case 3";
|
---|
31 | fallthru default;
|
---|
32 | fallthru common1;
|
---|
33 | common1:
|
---|
34 | sout | "common1";
|
---|
35 | // break
|
---|
36 | case 4:
|
---|
37 | sout | "case 4";
|
---|
38 | fallthru common2;
|
---|
39 | case 5:
|
---|
40 | sout | "case 5";
|
---|
41 | fallthru common2;
|
---|
42 | fallthru default;
|
---|
43 | case 6:
|
---|
44 | sout | "case 6";
|
---|
45 | fallthru common2;
|
---|
46 | common2:
|
---|
47 | sout | "common2";
|
---|
48 | // break
|
---|
49 | default:
|
---|
50 | sout | "default";
|
---|
51 | fallthru;
|
---|
52 | } // choose
|
---|
53 |
|
---|
54 | sout | nl;
|
---|
55 |
|
---|
56 | switch ( choice ) {
|
---|
57 | case 1:
|
---|
58 | sout | "case 1";
|
---|
59 | switch ( choice ) {
|
---|
60 | case 1:
|
---|
61 | sout | "case 1";
|
---|
62 | for ( int i = 0; i < 4; i += 1 ) {
|
---|
63 | sout | i;
|
---|
64 | if ( i == 2 ) fallthru common;
|
---|
65 | } // for
|
---|
66 | } // switch
|
---|
67 | break;
|
---|
68 | case 5:
|
---|
69 | sout | "case 5";
|
---|
70 | if ( choice == 5 ) {
|
---|
71 | if ( choice != 5 ) {
|
---|
72 | sout | "error";
|
---|
73 | } else {
|
---|
74 | sout | "check";
|
---|
75 | fallthru common;
|
---|
76 | } // if
|
---|
77 | } // if
|
---|
78 | common:
|
---|
79 | sout | "common";
|
---|
80 | fallthru;
|
---|
81 | break;
|
---|
82 | default:
|
---|
83 | sout | "default";
|
---|
84 | fallthru;
|
---|
85 | } // switch
|
---|
86 |
|
---|
87 | #if ERR1
|
---|
88 | // ERROR: fallthrough must be enclosed in switch or choose
|
---|
89 | fallthru;
|
---|
90 | // ERROR: fallthrough must be enclosed in switch or choose
|
---|
91 | fallthru common4;
|
---|
92 | // ERROR: fallthrough must be enclosed in switch or choose
|
---|
93 | fallthru default;
|
---|
94 | choose ( 3 ) {
|
---|
95 | case 2:
|
---|
96 | for () {
|
---|
97 | choose ( 2 ) {
|
---|
98 | case 1:
|
---|
99 | // ERROR: default is later, but in a different switch
|
---|
100 | fallthru default;
|
---|
101 | // ERROR: common3 is later, but not at the same level as a case clause
|
---|
102 | fallthru common3;
|
---|
103 | }
|
---|
104 | common3: ;
|
---|
105 | } // for
|
---|
106 | default:
|
---|
107 | case 1:
|
---|
108 | common4:
|
---|
109 | // ERROR: attempt to jump up with fallthrough
|
---|
110 | if ( 7 ) fallthru common4;
|
---|
111 | // ERROR: attempt to jump up with fallthrough
|
---|
112 | fallthru default;
|
---|
113 | } // choose
|
---|
114 | #endif
|
---|
115 | }
|
---|
116 |
|
---|
117 | int main() {
|
---|
118 | test( 1 );
|
---|
119 | sout | nl;
|
---|
120 | test( 5 );
|
---|
121 | }
|
---|
122 |
|
---|
123 | // Local Variables: //
|
---|
124 | // tab-width: 4 //
|
---|
125 | // compile-command: "cfa fallthrough.cfa" //
|
---|
126 | // End: //
|
---|
Note:
See
TracBrowser
for help on using the repository browser.