ref: b0fde52316fa7c33aa5045eff6ce6bfbd84a66a7 dir: /lib/c/src/isgraph.c/
#define __USE_MACROS #include <ctype.h> #undef isgraph int isgraph(int c) { return __ctype[(unsigned char) c] & (_P|_U|_L|_D); }