2edb89c746
The C and C++ standards require the argument to __has_cpp_attribute and __has_c_attribute to be expanded ([cpp.cond]p5). It would make little sense to expand the argument to those operators but not expand the argument to __has_attribute and __has_declspec, so those were both also changed in this patch. Note that it might make sense for the other builtins to also expand their argument, but it wasn't as clear to me whether the behavior would be correct there, and so they were left for a future revision.
128 lines
3.0 KiB
C++
128 lines
3.0 KiB
C++
// RUN: %clang_cc1 -triple i386-unknown-unknown -fms-compatibility -std=c++11 -E -P %s -o - | FileCheck %s --check-prefixes=CHECK,ITANIUM --implicit-check-not=:
|
|
// RUN: %clang_cc1 -triple i386-windows -fms-compatibility -std=c++11 -E -P %s -o - | FileCheck %s --check-prefixes=CHECK,WINDOWS --implicit-check-not=:
|
|
|
|
#define CXX11(x) x: __has_cpp_attribute(x)
|
|
|
|
// CHECK: clang::fallthrough: 201603L
|
|
CXX11(clang::fallthrough)
|
|
|
|
// CHECK: selectany: 0
|
|
CXX11(selectany)
|
|
|
|
// The attribute name can be bracketed with double underscores.
|
|
// CHECK: clang::__fallthrough__: 201603L
|
|
CXX11(clang::__fallthrough__)
|
|
|
|
// The scope cannot be bracketed with double underscores unless it is
|
|
// for gnu or clang.
|
|
// CHECK: __gsl__::suppress: 0
|
|
CXX11(__gsl__::suppress)
|
|
|
|
// CHECK: _Clang::fallthrough: 201603L
|
|
CXX11(_Clang::fallthrough)
|
|
|
|
// CHECK: __nodiscard__: 201907L
|
|
CXX11(__nodiscard__)
|
|
|
|
// CHECK: __gnu__::__const__: 1
|
|
CXX11(__gnu__::__const__)
|
|
|
|
// Test that C++11, target-specific attributes behave properly.
|
|
|
|
// CHECK: gnu::mips16: 0
|
|
CXX11(gnu::mips16)
|
|
|
|
// Test for standard attributes as listed in C++2a [cpp.cond] paragraph 6.
|
|
|
|
CXX11(assert)
|
|
CXX11(carries_dependency)
|
|
CXX11(deprecated)
|
|
CXX11(ensures)
|
|
CXX11(expects)
|
|
CXX11(fallthrough)
|
|
CXX11(likely)
|
|
CXX11(maybe_unused)
|
|
CXX11(no_unique_address)
|
|
CXX11(nodiscard)
|
|
CXX11(noreturn)
|
|
CXX11(unlikely)
|
|
// FIXME(201806L) CHECK: assert: 0
|
|
// CHECK: carries_dependency: 200809L
|
|
// CHECK: deprecated: 201309L
|
|
// FIXME(201806L) CHECK: ensures: 0
|
|
// FIXME(201806L) CHECK: expects: 0
|
|
// CHECK: fallthrough: 201603L
|
|
// CHECK: likely: 201803L
|
|
// CHECK: maybe_unused: 201603L
|
|
// ITANIUM: no_unique_address: 201803L
|
|
// WINDOWS: no_unique_address: 0
|
|
// CHECK: nodiscard: 201907L
|
|
// CHECK: noreturn: 200809L
|
|
// CHECK: unlikely: 201803L
|
|
|
|
namespace PR48462 {
|
|
// Test that macro expansion of the builtin argument works.
|
|
#define C clang
|
|
#define F fallthrough
|
|
#define CF clang::fallthrough
|
|
|
|
#if __has_cpp_attribute(F)
|
|
int has_fallthrough;
|
|
#endif
|
|
// CHECK: int has_fallthrough;
|
|
|
|
#if __has_cpp_attribute(C::F)
|
|
int has_clang_falthrough_1;
|
|
#endif
|
|
// CHECK: int has_clang_falthrough_1;
|
|
|
|
#if __has_cpp_attribute(clang::F)
|
|
int has_clang_falthrough_2;
|
|
#endif
|
|
// CHECK: int has_clang_falthrough_2;
|
|
|
|
#if __has_cpp_attribute(C::fallthrough)
|
|
int has_clang_falthrough_3;
|
|
#endif
|
|
// CHECK: int has_clang_falthrough_3;
|
|
|
|
#if __has_cpp_attribute(CF)
|
|
int has_clang_falthrough_4;
|
|
#endif
|
|
// CHECK: int has_clang_falthrough_4;
|
|
|
|
#define FUNCLIKE1(x) clang::x
|
|
#if __has_cpp_attribute(FUNCLIKE1(fallthrough))
|
|
int funclike_1;
|
|
#endif
|
|
// CHECK: int funclike_1;
|
|
|
|
#define FUNCLIKE2(x) _Clang::x
|
|
#if __has_cpp_attribute(FUNCLIKE2(fallthrough))
|
|
int funclike_2;
|
|
#endif
|
|
// CHECK: int funclike_2;
|
|
}
|
|
|
|
// Test for Microsoft __declspec attributes
|
|
|
|
#define DECLSPEC(x) x: __has_declspec_attribute(x)
|
|
|
|
// CHECK: uuid: 1
|
|
// CHECK: __uuid__: 1
|
|
DECLSPEC(uuid)
|
|
DECLSPEC(__uuid__)
|
|
|
|
// CHECK: fallthrough: 0
|
|
DECLSPEC(fallthrough)
|
|
|
|
namespace PR48462 {
|
|
// Test that macro expansion of the builtin argument works.
|
|
#define U uuid
|
|
|
|
#if __has_declspec_attribute(U)
|
|
int has_uuid;
|
|
#endif
|
|
// CHECK: int has_uuid;
|
|
}
|