builtins.cpp revision f2941ec5bfcce36feffac514582d168b4e0ef811
1// RUN: %clang_cc1 %s -fsyntax-only -verify -std=c++11 2typedef const struct __CFString * CFStringRef; 3#define CFSTR __builtin___CFStringMakeConstantString 4 5void f() { 6 (void)CFStringRef(CFSTR("Hello")); 7} 8 9void a() { __builtin_va_list x, y; ::__builtin_va_copy(x, y); } 10 11// <rdar://problem/10063539> 12template<int (*Compare)(const char *s1, const char *s2)> 13int equal(const char *s1, const char *s2) { 14 return Compare(s1, s2) == 0; 15} 16// FIXME: Our error recovery here sucks 17template int equal<&__builtin_strcmp>(const char*, const char*); // expected-error {{builtin functions must be directly called}} expected-error {{expected unqualified-id}} expected-error {{expected ')'}} expected-note {{to match this '('}} 18 19// PR13195 20void f2() { 21 __builtin_isnan; // expected-error {{builtin functions must be directly called}} 22} 23 24// pr14895 25typedef __typeof(sizeof(int)) size_t; 26extern "C" void *__builtin_alloca (size_t); 27 28namespace addressof { 29 struct S {} s; 30 static_assert(__builtin_addressof(s) == &s, ""); 31 32 struct T { constexpr T *operator&() const { return nullptr; } int n; } t; 33 constexpr T *pt = __builtin_addressof(t); 34 static_assert(&pt->n == &t.n, ""); 35 36 struct U { int n : 5; } u; 37 int *pbf = __builtin_addressof(u.n); // expected-error {{address of bit-field requested}} 38 39 S *ptmp = __builtin_addressof(S{}); // expected-error {{taking the address of a temporary}} 40} 41 42void no_ms_builtins() { 43 __assume(1); // expected-error {{use of undeclared}} 44 __noop(1); // expected-error {{use of undeclared}} 45 __debugbreak(); // expected-error {{use of undeclared}} 46} 47