test/Preprocessor/if_warning.c


1
2
3
4
5
6
7
8
9
10
11
12

// RUN: clang-cc %s -E -Wundef -Werror 2>&1 | grep error | count 1 &&
// RUN: clang-cc %s -E -Werror 2>&1 | not grep error 

#if foo   // Should generate an warning
#endif

#ifdef foo
#endif

#if defined(foo)
#endif