ref: 3035e9988fe30cd88f64c070e7b3d80a4b2c7fd5 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); }