ref: 4212f8a3ecf712dbf89c9449336bc5b3d9f2aaed 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); }