1 // RUN: %clang_cc1 -fsyntax-only %s 2>&1 | FileCheck %s
8 // CHECK: :7:{{[0-9]+}}: warning: expression result unused
9 // CHECK: :4:{{[0-9]+}}: note: expanded from:
10 // CHECK: :3:{{[0-9]+}}: note: expanded from:
18 // CHECK: :17:3: warning: expression result unused
19 // CHECK: :15:11: note: expanded from:
20 // CHECK: :14:11: note: expanded from:
21 // CHECK: :13:11: note: expanded from:
25 #define sprintf(str, A, B) \
26 __builtin___sprintf_chk (str, 0, 42, A, B)
29 sprintf(Msg, " sizeof FoooLib : =%3u\n", 12LL);
33 // PR9279: comprehensive tests for multi-level macro back traces
34 #define macro_args1(x) x
35 #define macro_args2(x) macro_args1(x)
36 #define macro_args3(x) macro_args2(x)
38 #define macro_many_args1(x, y, z) y
39 #define macro_many_args2(x, y, z) macro_many_args1(x, y, z)
40 #define macro_many_args3(x, y, z) macro_many_args2(x, y, z)
44 // CHECK: {{.*}}:43:15: warning: expression result unused
45 // Also check that the 'caret' printing agrees with the location here where
46 // its easy to FileCheck.
47 // CHECK-NEXT: macro_args3(1);
48 // CHECK-NEXT: ~~~~~~~~~~~~^~
49 // CHECK: {{.*}}:36:36: note: expanded from:
50 // CHECK: {{.*}}:35:36: note: expanded from:
51 // CHECK: {{.*}}:34:24: note: expanded from:
57 // CHECK: {{.*}}:55:5: warning: expression result unused
58 // CHECK: {{.*}}:40:55: note: expanded from:
59 // CHECK: {{.*}}:39:55: note: expanded from:
60 // CHECK: {{.*}}:38:35: note: expanded from:
66 // CHECK: {{.*}}:64:5: warning: expression result unused
67 // CHECK: {{.*}}:4:12: note: expanded from:
68 // CHECK: {{.*}}:40:55: note: expanded from:
69 // CHECK: {{.*}}:39:55: note: expanded from:
70 // CHECK: {{.*}}:38:35: note: expanded from:
76 // CHECK: {{.*}}:74:17: warning: expression result unused
77 // This caret location needs to be printed *inside* a different macro's
79 // CHECK-NEXT: macro_args2(2),
80 // CHECK-NEXT: ~~~~~~~~~~~~^~~
81 // CHECK: {{.*}}:35:36: note: expanded from:
82 // CHECK: {{.*}}:34:24: note: expanded from:
83 // CHECK: {{.*}}:40:55: note: expanded from:
84 // CHECK: {{.*}}:39:55: note: expanded from:
85 // CHECK: {{.*}}:38:35: note: expanded from:
88 #define variadic_args1(x, y, ...) y
89 #define variadic_args2(x, ...) variadic_args1(x, __VA_ARGS__)
90 #define variadic_args3(x, y, ...) variadic_args2(x, y, __VA_ARGS__)
93 variadic_args3(1, 2, 3, 4);
94 // CHECK: {{.*}}:93:21: warning: expression result unused
95 // CHECK-NEXT: variadic_args3(1, 2, 3, 4);
96 // CHECK-NEXT: ~~~~~~~~~~~~~~~~~~^~~~~~~~
97 // CHECK: {{.*}}:90:53: note: expanded from:
98 // CHECK: {{.*}}:89:50: note: expanded from:
99 // CHECK: {{.*}}:88:35: note: expanded from:
102 #define variadic_pasting_args1(x, y, z) y
103 #define variadic_pasting_args2(x, ...) variadic_pasting_args1(x ## __VA_ARGS__)
104 #define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__)
105 #define variadic_pasting_args3(x, y, ...) variadic_pasting_args2(x, y, __VA_ARGS__)
106 #define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__)
109 variadic_pasting_args3(1, 2, 3, 4);
110 // CHECK: {{.*}}:109:32: warning: expression result unused
111 // CHECK: {{.*}}:105:72: note: expanded from:
112 // CHECK: {{.*}}:103:68: note: expanded from:
113 // CHECK: {{.*}}:102:41: note: expanded from:
115 variadic_pasting_args3a(1, 2, 3, 4);
116 // FIXME: It'd be really nice to retain the start location of the first token
117 // involved in the token paste instead of falling back on the full macro
118 // location in the first two locations here.
119 // CHECK: {{.*}}:115:3: warning: expression result unused
120 // CHECK: {{.*}}:106:44: note: expanded from:
121 // CHECK: {{.*}}:104:72: note: expanded from:
122 // CHECK: {{.*}}:102:41: note: expanded from: