ref: 4c00c4e8204f98a5859ef6c0bfe8d2e4d6f168d2 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); }