ref: 59fd8e09d75fc7b279a7e4b20fcd0fb7d92e8122 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); }