llvm-project/clang/test/SemaCXX/microsoft-varargs.cpp

29 lines
1.0 KiB
C++

// RUN: %clang_cc1 -triple thumbv7-windows -fms-compatibility -fsyntax-only %s -verify
// RUN: %clang_cc1 -triple aarch64-windows -fms-compatibility -fsyntax-only %s -verify
// expected-no-diagnostics
extern "C" {
typedef char * va_list;
void __va_start(va_list *, ...);
}
int test___va_start(int i, ...) {
va_list ap;
__va_start(&ap, ( &reinterpret_cast<const char &>(i) ),
( (sizeof(i) + 4 - 1) & ~(4 - 1) ),
( &reinterpret_cast<const char &>(i) ));
return (*(int *)((ap += ( (sizeof(int) + 4 - 1) & ~(4 - 1) ) + ( ((va_list)0 - (ap)) & (__alignof(int) - 1) )) - ( (sizeof(int) + 4 - 1) & ~(4 - 1) )));
}
int builtin(int i, ...) {
__builtin_va_list ap;
__builtin_va_start(ap, i);
return __builtin_va_arg(ap, int);
}
void test___va_start_ignore_const(const char *format, ...) {
va_list args;
((void)(__va_start(&args, (&const_cast<char &>(reinterpret_cast<const volatile char &>(format))), ((sizeof(format) + 4 - 1) & ~(4 - 1)), (&const_cast<char &>(reinterpret_cast<const volatile char &>(format))))));
}