1// RUN: %clang_cc1 %s -verify -fsyntax-only -Werror
2
3typedef int int32_t;
4typedef unsigned char Boolean;
5
6extern int printf(__const char *__restrict __format, ...); // expected-note{{'printf' declared here}}
7
8void func() {
9   int32_t *vector[16];
10   const char compDesc[16 + 1];
11   int32_t compCount = 0;
12   if (_CFCalendarDecomposeAbsoluteTimeV(compDesc, vector, compCount)) { // expected-note {{previous implicit declaration is here}} \
13         expected-error {{implicit declaration of function '_CFCalendarDecomposeAbsoluteTimeV' is invalid in C99}}
14   }
15
16   printg("Hello, World!\n"); // expected-error{{implicit declaration of function 'printg' is invalid in C99}} \
17                              // expected-note{{did you mean 'printf'?}}
18
19  __builtin_is_les(1, 3); // expected-error{{use of unknown builtin '__builtin_is_les'}}
20}
21Boolean _CFCalendarDecomposeAbsoluteTimeV(const char *componentDesc, int32_t **vector, int32_t count) { // expected-error{{conflicting types for '_CFCalendarDecomposeAbsoluteTimeV'}}
22 return 0;
23}
24
25
26// Test the typo-correction callback in Sema::ImplicitlyDefineFunction
27extern int sformatf(char *str, __const char *__restrict __format, ...); // expected-note{{'sformatf' declared here}}
28void test_implicit() {
29  int formats = 0;
30  formatd("Hello, World!\n"); // expected-error{{implicit declaration of function 'formatd' is invalid in C99}} \
31                              // expected-note{{did you mean 'sformatf'?}}
32}
33