ref: 5a522b88668d1295302293de3f86c0b2869ee57a
dir: /include/bits/i386/arch/stddef.h/
#ifndef _SIZET typedef unsigned long size_t; #define _SIZET #endif #ifndef _WCHAR_T typedef int wchar_t; #define _WCHAR_T #endif #ifndef _PTRDIFF_T typedef long ptrdiff_t; #define _PTRDIFF_T #endif