| // RUN: %clang_cc1 %s -verify -fsyntax-only -Werror=implicit-function-declaration -std=c99 |
| // RUN: %clang_cc1 %s -verify -fsyntax-only -std=c11 |
| // RUN: %clang_cc1 %s -verify=c2x -fsyntax-only -std=c2x |
| |
| /// -Werror-implicit-function-declaration is a deprecated alias used by many projects. |
| // RUN: %clang_cc1 %s -verify -fsyntax-only -Werror-implicit-function-declaration |
| |
| // c2x-note@*:* {{'__builtin_va_list' declared here}} |
| |
| typedef int int32_t; |
| typedef unsigned char Boolean; |
| |
| extern int printf(__const char *__restrict __format, ...); // expected-note{{'printf' declared here}} \ |
| c2x-note {{'printf' declared here}} |
| |
| void func(void) { |
| int32_t *vector[16]; |
| const char compDesc[16 + 1]; |
| int32_t compCount = 0; |
| if (_CFCalendarDecomposeAbsoluteTimeV(compDesc, vector, compCount)) { // expected-error {{call to undeclared function '_CFCalendarDecomposeAbsoluteTimeV'; ISO C99 and later do not support implicit function declarations}} \ |
| expected-note {{previous implicit declaration}} \ |
| c2x-error {{use of undeclared identifier '_CFCalendarDecomposeAbsoluteTimeV'}} |
| } |
| |
| printg("Hello, World!\n"); // expected-error{{call to undeclared function 'printg'; ISO C99 and later do not support implicit function declarations}} \ |
| expected-note{{did you mean 'printf'?}} \ |
| c2x-error {{use of undeclared identifier 'printg'; did you mean 'printf'?}} |
| |
| __builtin_is_les(1, 3); // expected-error{{use of unknown builtin '__builtin_is_les'}} \ |
| c2x-error {{unknown type name '__builtin_is_les'; did you mean '__builtin_va_list'?}} \ |
| c2x-error {{expected identifier or '('}} \ |
| c2x-error {{expected ')'}} \ |
| c2x-note {{to match this '('}} |
| } |
| Boolean _CFCalendarDecomposeAbsoluteTimeV(const char *componentDesc, int32_t **vector, int32_t count) { // expected-error {{conflicting types}} |
| return 0; |
| } |
| |
| |
| // Test the typo-correction callback in Sema::ImplicitlyDefineFunction |
| extern int sformatf(char *str, __const char *__restrict __format, ...); // expected-note{{'sformatf' declared here}} |
| void test_implicit(void) { |
| int formats = 0; // c2x-note {{'formats' declared here}} |
| formatd("Hello, World!\n"); // expected-error{{call to undeclared function 'formatd'; ISO C99 and later do not support implicit function declarations}} \ |
| expected-note{{did you mean 'sformatf'?}} \ |
| c2x-error {{use of undeclared identifier 'formatd'; did you mean 'formats'?}} \ |
| c2x-error {{called object type 'int' is not a function or function pointer}} |
| } |
| |
| void test_suggestion(void) { |
| bark(); // expected-error {{call to undeclared function 'bark'; ISO C99 and later do not support implicit function declarations}} \ |
| c2x-error {{use of undeclared identifier 'bark'}} |
| bork(); // expected-error {{call to undeclared function 'bork'; ISO C99 and later do not support implicit function declarations}} \ |
| c2x-error {{use of undeclared identifier 'bork'}} |
| } |