Files
clang-p2996/clang/test/Preprocessor/if_warning.c
Fangrui Song c6a384df1f [Sema] Special case -Werror-implicit-function-declaration and reject other -Werror-
This is the only -Werror- form warning option GCC supports (gcc/c-family/c.opt).
Fortunately no other form is used anywhere.
2020-11-05 10:25:30 -08:00

31 lines
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C

// RUN: %clang_cc1 %s -Eonly -Werror=undef -verify
extern int x;
#if foo // expected-error {{'foo' is not defined, evaluates to 0}}
#endif
#ifdef foo
#endif
#if defined(foo)
#endif
// PR3938
#if 0
#ifdef D
#else 1 // Should not warn due to C99 6.10p4
#endif
#endif
// rdar://9475098
#if 0
#else 1 // expected-warning {{extra tokens}}
#endif
// PR6852
#if 'somesillylongthing' // expected-warning {{character constant too long for its type}} \
// expected-warning {{multi-character character constant}}
#endif