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YAMAMOTO Takashi
e99e185712
wchar_t is a builtin type in C++.
clang complains like the following even with -fshort-wchar:
error: cannot combine with previous 'type-name' declaration specifier
my clang version if it matters:
spacetanuki% clang++ --version
Apple clang version 11.0.0 (clang-1100.0.33.17)
Target: x86_64-apple-darwin18.7.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
spacetanuki% clang++ -dM -E - < /dev/null | grep WCHAR
#define __CLANG_ATOMIC_WCHAR_T_LOCK_FREE 2
#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
#define __SIZEOF_WCHAR_T__ 4
#define __WCHAR_MAX__ 2147483647
#define __WCHAR_TYPE__ int
#define __WCHAR_WIDTH__ 32
spacetanuki% clang++ -fshort-wchar -dM -E - < /dev/null | grep WCHAR
#define __CLANG_ATOMIC_WCHAR_T_LOCK_FREE 2
#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
#define __SIZEOF_WCHAR_T__ 2
#define __WCHAR_MAX__ 65535
#define __WCHAR_TYPE__ unsigned short
#define __WCHAR_UNSIGNED__ 1
#define __WCHAR_WIDTH__ 16
spacetanuki%