ref: 5f0409dd660ec9a663b8d0e6ccc9664b44f2e4e3 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); }