ref: c22a72acf6627d779b527dfd43e6abc7148f2886
dir: /include/bits/amd64/arch/cdefs.h/
#ifdef _NEED_SIZET #ifndef _SIZET typedef unsigned long size_t; #define _SIZET #endif #undef _NEED_SIZET #endif #ifdef _NEED_PTRDIFFT #ifndef _PTRDIFFT typedef long ptrdiff_t; #define _PTRDIFFT #endif #undef _NEED_PTRDIFFT #endif #ifdef _NEED_NULL #ifndef NULL #define NULL ((void *) 0) #endif #undef _NEED_NULL #endif #ifdef _NEED_WCHART #ifndef _WCHART typedef int wchar_t; #define _WCHART #endif #undef _NEED_WCHART #endif