clang/test/Preprocessor/is_target.c

// RUN: %clang_cc1 -fsyntax-only -triple x86_64-apple-darwin-simulator -verify %s

#if !__is_target_arch(x86_64) || !__is_target_arch(X86_64)
  #error "mismatching arch"
#endif

#if __is_target_arch(arm64)
  #error "mismatching arch"
#endif

// Silently ignore invalid archs. This will ensure that older compilers will
// accept headers that support new arches/vendors/os variants.
#if __is_target_arch(foo)
  #error "invalid arch"
#endif

#if !__is_target_vendor(apple) || !__is_target_vendor(APPLE)
  #error "mismatching vendor"
#endif

#if __is_target_vendor(unknown)
  #error "mismatching vendor"
#endif

#if __is_target_vendor(foo)
  #error "invalid vendor"
#endif

#if !__is_target_os(darwin) || !__is_target_os(DARWIN)
  #error "mismatching os"
#endif

#if __is_target_os(ios)
  #error "mismatching os"
#endif

#if __is_target_os(foo)
  #error "invalid os"
#endif

#if !__is_target_environment(simulator) || !__is_target_environment(SIMULATOR)
  #error "mismatching environment"
#endif

#if __is_target_environment(unknown)
  #error "mismatching environment"
#endif

#if __is_target_environment(foo)
  #error "invalid environment"
#endif

#if !__has_builtin(__is_target_arch) || !__has_builtin(__is_target_os) || !__has_builtin(__is_target_vendor) || !__has_builtin(__is_target_environment)
  #error "has builtin doesn't work"
#endif

#if __is_target_arch(11) // expected-error {{builtin feature check macro requires a parenthesized identifier}}
  #error "invalid arch"
#endif

#if __is_target_arch x86 // expected-error{{missing '(' after '__is_target_arch'}}
  #error "invalid arch"
#endif

#if __is_target_arch ( x86  // expected-error {{unterminated function-like macro invocation}}
  #error "invalid arch"
#endif // expected-error@-2 {{expected value in expression}}