ref: 02e4f0a7bed09cd0f60d8a0b101cf0a82baf588c dir: /lib/c/isgraph.c/
#define __USE_MACROS #include <ctype.h> #undef isgraph int isgraph(int c) { return (__ctype+1)[c] & (_P|_U|_L|_D); }