| // RUN: %clang_cc1 -fsyntax-only %s 2>&1 | FileCheck %s -strict-whitespace |
| |
| #define M1(x) x |
| #define M2 1; |
| void foo() { |
| M1( |
| M2); |
| // CHECK: {{.*}}:7:{{[0-9]+}}: warning: expression result unused |
| // CHECK: {{.*}}:4:{{[0-9]+}}: note: expanded from macro 'M2' |
| // CHECK: {{.*}}:3:{{[0-9]+}}: note: expanded from macro 'M1' |
| } |
| |
| #define A 1 |
| #define B A |
| #define C B |
| void bar() { |
| C; |
| // CHECK: {{.*}}:17:3: warning: expression result unused |
| // CHECK: {{.*}}:15:11: note: expanded from macro 'C' |
| // CHECK: {{.*}}:14:11: note: expanded from macro 'B' |
| // CHECK: {{.*}}:13:11: note: expanded from macro 'A' |
| } |
| |
| // rdar://7597492 |
| #define sprintf(str, A, B) \ |
| __builtin___sprintf_chk (str, 0, 42, A, B) |
| |
| void baz(char *Msg) { |
| sprintf(Msg, " sizeof FoooLib : =%3u\n", 12LL); |
| } |
| |
| |
| // PR9279: comprehensive tests for multi-level macro back traces |
| #define macro_args1(x) x |
| #define macro_args2(x) macro_args1(x) |
| #define macro_args3(x) macro_args2(x) |
| |
| #define macro_many_args1(x, y, z) y |
| #define macro_many_args2(x, y, z) macro_many_args1(x, y, z) |
| #define macro_many_args3(x, y, z) macro_many_args2(x, y, z) |
| |
| void test() { |
| macro_args3(11); |
| // CHECK: {{.*}}:43:15: warning: expression result unused |
| // Also check that the 'caret' printing agrees with the location here where |
| // its easy to FileCheck. |
| // CHECK-NEXT: macro_args3(11); |
| // CHECK-NEXT: {{^ \^~}} |
| // CHECK: {{.*}}:36:36: note: expanded from macro 'macro_args3' |
| // CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2' |
| // CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1' |
| |
| macro_many_args3( |
| 1, |
| 2, |
| 3); |
| // CHECK: {{.*}}:55:5: warning: expression result unused |
| // CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3' |
| // CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2' |
| // CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1' |
| |
| macro_many_args3( |
| 1, |
| M2, |
| 3); |
| // CHECK: {{.*}}:64:5: warning: expression result unused |
| // CHECK: {{.*}}:4:12: note: expanded from macro 'M2' |
| // CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3' |
| // CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2' |
| // CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1' |
| |
| macro_many_args3( |
| 1, |
| macro_args2(22), |
| 3); |
| // CHECK: {{.*}}:74:17: warning: expression result unused |
| // This caret location needs to be printed *inside* a different macro's |
| // arguments. |
| // CHECK-NEXT: macro_args2(22), |
| // CHECK-NEXT: {{^ \^~}} |
| // CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2' |
| // CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1' |
| // CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3' |
| // CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2' |
| // CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1' |
| } |
| |
| #define variadic_args1(x, y, ...) y |
| #define variadic_args2(x, ...) variadic_args1(x, __VA_ARGS__) |
| #define variadic_args3(x, y, ...) variadic_args2(x, y, __VA_ARGS__) |
| |
| void test2() { |
| variadic_args3(1, 22, 3, 4); |
| // CHECK: {{.*}}:93:21: warning: expression result unused |
| // CHECK-NEXT: variadic_args3(1, 22, 3, 4); |
| // CHECK-NEXT: {{^ \^~}} |
| // CHECK: {{.*}}:90:53: note: expanded from macro 'variadic_args3' |
| // CHECK: {{.*}}:89:50: note: expanded from macro 'variadic_args2' |
| // CHECK: {{.*}}:88:35: note: expanded from macro 'variadic_args1' |
| } |
| |
| #define variadic_pasting_args1(x, y, z) y |
| #define variadic_pasting_args2(x, ...) variadic_pasting_args1(x ## __VA_ARGS__) |
| #define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__) |
| #define variadic_pasting_args3(x, y, ...) variadic_pasting_args2(x, y, __VA_ARGS__) |
| #define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__) |
| |
| void test3() { |
| variadic_pasting_args3(1, 2, 3, 4); |
| // CHECK: {{.*}}:109:32: warning: expression result unused |
| // CHECK: {{.*}}:105:72: note: expanded from macro 'variadic_pasting_args3' |
| // CHECK: {{.*}}:103:68: note: expanded from macro 'variadic_pasting_args2' |
| // CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1' |
| |
| variadic_pasting_args3a(1, 2, 3, 4); |
| // CHECK: {{.*}}:115:3: warning: expression result unused |
| // CHECK-NEXT: variadic_pasting_args3a(1, 2, 3, 4); |
| // CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}} |
| // CHECK: {{.*}}:106:44: note: expanded from macro 'variadic_pasting_args3a' |
| // CHECK-NEXT: #define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__) |
| // CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}} |
| // CHECK: {{.*}}:104:70: note: expanded from macro 'variadic_pasting_args2a' |
| // CHECK-NEXT: #define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__) |
| // CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~}} |
| // CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1' |
| // CHECK-NEXT: #define variadic_pasting_args1(x, y, z) y |
| // CHECK-NEXT: {{ \^}} |
| } |
| |
| #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3 |
| int test4 = BAD_CONDITIONAL_OPERATOR+BAD_CONDITIONAL_OPERATOR; |
| // CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR' |
| // CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3 |
| // CHECK-NEXT: {{^ \^}} |
| // CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR' |
| // CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3 |
| // CHECK-NEXT: {{^ \^}} |
| // CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR' |
| // CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3 |
| // CHECK-NEXT: {{^ ~~~~~\^~~~}} |
| |
| #define QMARK ? |
| #define TWOL (2< |
| #define X 1+TWOL 3) QMARK 4:5 |
| int x = X; |
| // CHECK: {{.*}}:145:9: note: place parentheses around the '+' expression to silence this warning |
| // CHECK-NEXT: int x = X; |
| // CHECK-NEXT: {{^ \^}} |
| // CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X' |
| // CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5 |
| // CHECK-NEXT: {{^ ~~~~~~~~~ \^}} |
| // CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK' |
| // CHECK-NEXT: #define QMARK ? |
| // CHECK-NEXT: {{^ \^}} |
| // CHECK-NEXT: {{.*}}:145:9: note: place parentheses around the '?:' expression to evaluate it first |
| // CHECK-NEXT: int x = X; |
| // CHECK-NEXT: {{^ \^}} |
| // CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X' |
| // CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5 |
| // CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~}} |
| |
| #define ONEPLUS 1+ |
| #define Y ONEPLUS (2<3) QMARK 4:5 |
| int y = Y; |
| // CHECK: {{.*}}:164:9: warning: operator '?:' has lower precedence than '+'; '+' will be evaluated first |
| // CHECK-NEXT: int y = Y; |
| // CHECK-NEXT: {{^ \^}} |
| // CHECK-NEXT: {{.*}}:163:25: note: expanded from macro 'Y' |
| // CHECK-NEXT: #define Y ONEPLUS (2<3) QMARK 4:5 |
| // CHECK-NEXT: {{^ ~~~~~~~~~~~~~ \^}} |
| // CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK' |
| // CHECK-NEXT: #define QMARK ? |
| // CHECK-NEXT: {{^ \^}} |
| |
| // PR14399 |
| void iequals(int,int,int); |
| void foo_aa() |
| { |
| #define /* */ BARC(c, /* */b, a, ...) (a+b+/* */c + __VA_ARGS__ +0) |
| iequals(__LINE__, BARC(4,3,2,6,8), 8); |
| } |
| // CHECK: {{.*}}:180:21: warning: expression result unused |
| // CHECK-NEXT: iequals(__LINE__, BARC(4,3,2,6,8), 8); |
| // CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~}} |
| // CHECK-NEXT: {{.*}}:179:51: note: expanded from macro 'BARC' |
| // CHECK-NEXT: #define /* */ BARC(c, /* */b, a, ...) (a+b+/* */c + __VA_ARGS__ +0) |
| // CHECK-NEXT: {{^ ~~~~~~~~~~ \^}} |
| |
| #define APPEND2(NUM, SUFF) -1 != NUM ## SUFF |
| #define APPEND(NUM, SUFF) APPEND2(NUM, SUFF) |
| #define UTARG_MAX_U APPEND (MAX_UINT, UL) |
| #define MAX_UINT 18446744073709551615 |
| #if UTARG_MAX_U |
| #endif |
| |
| // CHECK: {{.*}}:193:5: warning: left side of operator converted from negative value to unsigned: -1 to 18446744073709551615 |
| // CHECK-NEXT: #if UTARG_MAX_U |
| // CHECK-NEXT: {{^ \^~~~~~~~~~~}} |
| // CHECK-NEXT: {{.*}}:191:21: note: expanded from macro 'UTARG_MAX_U' |
| // CHECK-NEXT: #define UTARG_MAX_U APPEND (MAX_UINT, UL) |
| // CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~~~~}} |
| // CHECK-NEXT: {{.*}}:190:27: note: expanded from macro 'APPEND' |
| // CHECK-NEXT: #define APPEND(NUM, SUFF) APPEND2(NUM, SUFF) |
| // CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~}} |
| // CHECK-NEXT: {{.*}}:189:31: note: expanded from macro 'APPEND2' |
| // CHECK-NEXT: #define APPEND2(NUM, SUFF) -1 != NUM ## SUFF |
| // CHECK-NEXT: {{^ ~~ \^ ~~~~~~~~~~~}} |
