ref: 0517d8a80bca67fca4c46dfdf4a8837b967eefbf 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); }