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/* PR c/66970 - Add __has_builtin() macro
Verify __has_builtin evaluation for disabled library built-ins.
{ dg-do compile }
{ dg-options "-fno-builtin-abs" }
{ dg-additional-options "-std=c90" { target c } } */
#if !__has_builtin (__builtin_abs)
// __builtin_xxx is always available regardless of -fno-builtin.
# error "__has_builtin (__builtin_abs) failed"
#endif
#if __has_builtin (abs)
# error "__has_builtin (abs) failed"
#endif
#if __has_builtin (abs)
# error "__has_builtin (abs) failed"
#endif
#if !__has_builtin (__builtin_vsnprintf)
// __builtin_vsnprintf is available in all language modes.
# error "__has_builtin (__builtin_vsnprintf) failed"
#endif
#if !__has_builtin (vsnprintf)
# if __cplusplus
// vsnprintf is always available in C++.
# error "__has_builtin (vsnprintf) failed"
# endif
#else
# if !__cplusplus
// vsnprintf is a C99 function not available in C90.
# error "__has_builtin (vsnprintf) failed"
# endif
#endif
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