shithub: scc

ref: f441e1db75872457deb4aacf39500f3cc6185554
dir: /src/libc/ctype/isxdigit.c/

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#include <ctype.h>
#undef isxdigit

int
isxdigit(int c)
{
	return (__ctype+1)[c] & (_D|_X);
}