ref: d551e92f989a1c010e684f6d9f1ee07539c836a5 dir: /lib/c/src/isgraph.c/
#define __USE_MACROS #include <ctype.h> #undef isgraph int isgraph(int c) { return (__ctype+1)[c] & (_P|_U|_L|_D); }