ref: 67d90c41c1d5ef13d67cc0a3ce2bd7de1cc53037 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); }