C++程序  |  17行  |  525 B

// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x -ffreestanding %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x -fshort-wchar -ffreestanding %s

#include <stdint.h>

// In theory, the promoted types vary by platform; however, in reality they
// are quite consistent across all platforms where clang runs.

extern int promoted_wchar;
extern decltype(+L'a') promoted_wchar;

extern int promoted_char16;
extern decltype(+u'a') promoted_char16;

extern unsigned promoted_char32;
extern decltype(+U'a') promoted_char32;