227 lines
9.9 KiB
C
227 lines
9.9 KiB
C
// RUN: %clang_cc1 -fsyntax-only %s 2>&1 | FileCheck %s -strict-whitespace
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#define M1(x) x
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#define M2 1;
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void foo() {
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M1(
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M2);
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// CHECK: {{.*}}:7:{{[0-9]+}}: warning: expression result unused
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// CHECK: {{.*}}:4:{{[0-9]+}}: note: expanded from macro 'M2'
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// CHECK: {{.*}}:3:{{[0-9]+}}: note: expanded from macro 'M1'
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}
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#define A(x) x
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#define B(x) A(x)
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#define C(x) B(x)
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void bar() {
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C(1);
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// CHECK: {{.*}}:17:5: warning: expression result unused
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// CHECK: {{.*}}:15:16: note: expanded from macro 'C'
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// CHECK: {{.*}}:14:16: note: expanded from macro 'B'
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// CHECK: {{.*}}:13:14: note: expanded from macro 'A'
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}
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// rdar://7597492
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#define sprintf(str, A, B) \
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__builtin___sprintf_chk (str, 0, 42, A, B)
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void baz(char *Msg) {
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sprintf(Msg, " sizeof FoooLib : =%3u\n", 12LL);
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}
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// PR9279: comprehensive tests for multi-level macro back traces
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#define macro_args1(x) x
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#define macro_args2(x) macro_args1(x)
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#define macro_args3(x) macro_args2(x)
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#define macro_many_args1(x, y, z) y
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#define macro_many_args2(x, y, z) macro_many_args1(x, y, z)
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#define macro_many_args3(x, y, z) macro_many_args2(x, y, z)
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void test() {
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macro_args3(11);
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// CHECK: {{.*}}:43:15: warning: expression result unused
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// Also check that the 'caret' printing agrees with the location here where
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// its easy to FileCheck.
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// CHECK-NEXT: macro_args3(11);
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// CHECK-NEXT: {{^ \^~}}
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// CHECK: {{.*}}:36:36: note: expanded from macro 'macro_args3'
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// CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2'
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// CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1'
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macro_many_args3(
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1,
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2,
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3);
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// CHECK: {{.*}}:55:5: warning: expression result unused
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// CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
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// CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
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// CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
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macro_many_args3(
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1,
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M2,
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3);
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// CHECK: {{.*}}:64:5: warning: expression result unused
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// CHECK: {{.*}}:4:12: note: expanded from macro 'M2'
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// CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
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// CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
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// CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
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macro_many_args3(
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1,
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macro_args2(22),
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3);
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// CHECK: {{.*}}:74:17: warning: expression result unused
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// This caret location needs to be printed *inside* a different macro's
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// arguments.
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// CHECK-NEXT: macro_args2(22),
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// CHECK-NEXT: {{^ \^~}}
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// CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2'
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// CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1'
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// CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
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// CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
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// CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
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}
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#define variadic_args1(x, y, ...) y
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#define variadic_args2(x, ...) variadic_args1(x, __VA_ARGS__)
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#define variadic_args3(x, y, ...) variadic_args2(x, y, __VA_ARGS__)
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void test2() {
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variadic_args3(1, 22, 3, 4);
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// CHECK: {{.*}}:93:21: warning: expression result unused
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// CHECK-NEXT: variadic_args3(1, 22, 3, 4);
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// CHECK-NEXT: {{^ \^~}}
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// CHECK: {{.*}}:90:53: note: expanded from macro 'variadic_args3'
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// CHECK: {{.*}}:89:50: note: expanded from macro 'variadic_args2'
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// CHECK: {{.*}}:88:35: note: expanded from macro 'variadic_args1'
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}
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#define variadic_pasting_args1(x, y, z) y
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#define variadic_pasting_args2(x, ...) variadic_pasting_args1(x ## __VA_ARGS__)
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#define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__)
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#define variadic_pasting_args3(x, y, ...) variadic_pasting_args2(x, y, __VA_ARGS__)
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#define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__)
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void test3() {
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variadic_pasting_args3(1, 2, 3, 4);
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// CHECK: {{.*}}:109:32: warning: expression result unused
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// CHECK: {{.*}}:105:72: note: expanded from macro 'variadic_pasting_args3'
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// CHECK: {{.*}}:103:68: note: expanded from macro 'variadic_pasting_args2'
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// CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1'
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variadic_pasting_args3a(1, 2, 3, 4);
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// CHECK: {{.*}}:115:3: warning: expression result unused
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// CHECK-NEXT: variadic_pasting_args3a(1, 2, 3, 4);
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// CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}
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// CHECK: {{.*}}:106:44: note: expanded from macro 'variadic_pasting_args3a'
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// CHECK-NEXT: #define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__)
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// CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}
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// CHECK: {{.*}}:104:70: note: expanded from macro 'variadic_pasting_args2a'
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// CHECK-NEXT: #define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__)
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// CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~}}
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// CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1'
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// CHECK-NEXT: #define variadic_pasting_args1(x, y, z) y
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// CHECK-NEXT: {{ \^}}
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}
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#define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
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int test4 = BAD_CONDITIONAL_OPERATOR+BAD_CONDITIONAL_OPERATOR;
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// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
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// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
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// CHECK-NEXT: {{^ \^}}
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// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
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// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
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// CHECK-NEXT: {{^ \^}}
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// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
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// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
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// CHECK-NEXT: {{^ ~~~~~\^~~~}}
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#define QMARK ?
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#define TWOL (2<
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#define X 1+TWOL 3) QMARK 4:5
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int x = X;
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// CHECK: {{.*}}:145:9: note: place parentheses around the '+' expression to silence this warning
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// CHECK-NEXT: int x = X;
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// CHECK-NEXT: {{^ \^}}
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// CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X'
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// CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5
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// CHECK-NEXT: {{^ ~~~~~~~~~ \^}}
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// CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK'
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// CHECK-NEXT: #define QMARK ?
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// CHECK-NEXT: {{^ \^}}
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// CHECK-NEXT: {{.*}}:145:9: note: place parentheses around the '?:' expression to evaluate it first
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// CHECK-NEXT: int x = X;
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// CHECK-NEXT: {{^ \^}}
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// CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X'
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// CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5
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// CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~}}
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#define ONEPLUS 1+
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#define Y ONEPLUS (2<3) QMARK 4:5
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int y = Y;
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// CHECK: {{.*}}:164:9: warning: operator '?:' has lower precedence than '+'; '+' will be evaluated first
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// CHECK-NEXT: int y = Y;
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// CHECK-NEXT: {{^ \^}}
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// CHECK-NEXT: {{.*}}:163:25: note: expanded from macro 'Y'
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// CHECK-NEXT: #define Y ONEPLUS (2<3) QMARK 4:5
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// CHECK-NEXT: {{^ ~~~~~~~~~~~~~ \^}}
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// CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK'
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// CHECK-NEXT: #define QMARK ?
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// CHECK-NEXT: {{^ \^}}
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// PR14399
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void iequals(int,int,int);
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void foo_aa(char* s)
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{
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#define /* */ BARC(c, /* */b, a) (a + b ? c : c)
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iequals(__LINE__, BARC(123, (456 < 345), 789), 8);
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}
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// CHECK: {{.*}}:180:21: warning: operator '?:' has lower precedence than '+'
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// CHECK-NEXT: iequals(__LINE__, BARC(123, (456 < 345), 789), 8);
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// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~~~~~~~~~~}}
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// CHECK-NEXT: {{.*}}:179:41: note: expanded from macro 'BARC'
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// CHECK-NEXT: #define /* */ BARC(c, /* */b, a) (a + b ? c : c)
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// CHECK-NEXT: {{^ ~~~~~ \^}}
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#define APPEND2(NUM, SUFF) -1 != NUM ## SUFF
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#define APPEND(NUM, SUFF) APPEND2(NUM, SUFF)
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#define UTARG_MAX_U APPEND (MAX_UINT, UL)
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#define MAX_UINT 18446744073709551615
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#if UTARG_MAX_U
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#endif
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// CHECK: {{.*}}:193:5: warning: left side of operator converted from negative value to unsigned: -1 to 18446744073709551615
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// CHECK-NEXT: #if UTARG_MAX_U
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// CHECK-NEXT: {{^ \^~~~~~~~~~~}}
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// CHECK-NEXT: {{.*}}:191:21: note: expanded from macro 'UTARG_MAX_U'
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// CHECK-NEXT: #define UTARG_MAX_U APPEND (MAX_UINT, UL)
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// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~~~~}}
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// CHECK-NEXT: {{.*}}:190:27: note: expanded from macro 'APPEND'
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// CHECK-NEXT: #define APPEND(NUM, SUFF) APPEND2(NUM, SUFF)
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// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~}}
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// CHECK-NEXT: {{.*}}:189:31: note: expanded from macro 'APPEND2'
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// CHECK-NEXT: #define APPEND2(NUM, SUFF) -1 != NUM ## SUFF
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// CHECK-NEXT: {{^ ~~ \^ ~~~~~~~~~~~}}
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unsigned long strlen_test(const char *s);
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#define __darwin_obsz(object) __builtin_object_size (object, 1)
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#define sprintf2(str, ...) \
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__builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
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#define Cstrlen(a) strlen_test(a)
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#define Csprintf sprintf2
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void f(char* pMsgBuf, char* pKeepBuf) {
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Csprintf(pMsgBuf,"\nEnter minimum anagram length (2-%1d): ", Cstrlen(pKeepBuf));
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}
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// CHECK: {{.*}}:216:62: warning: format specifies type 'int' but the argument has type 'unsigned long'
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// CHECK-NEXT: Csprintf(pMsgBuf,"\nEnter minimum anagram length (2-%1d): ", Cstrlen(pKeepBuf));
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// CHECK-NEXT: {{^ ~~~ \^}}
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// CHECK-NEXT: {{^ %1lu}}
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// CHECK-NEXT: {{.*}}:213:21: note: expanded from macro 'Cstrlen'
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// CHECK-NEXT: #define Cstrlen(a) strlen_test(a)
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// CHECK-NEXT: {{^ \^}}
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// CHECK-NEXT: {{.*}}:212:56: note: expanded from macro 'sprintf2'
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// CHECK-NEXT: __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
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// CHECK-NEXT: {{^ \^}}
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