https://github.com/torvalds/linux
Raw File
Tip revision: b953c0d234bc72e8489d3bf51a276c5c4ec85345 authored by Linus Torvalds on 22 June 2015, 05:05:43 UTC
Linux 4.1
Tip revision: b953c0d
ctype.h
#ifndef BOOT_CTYPE_H
#define BOOT_CTYPE_H

static inline int isdigit(int ch)
{
	return (ch >= '0') && (ch <= '9');
}

static inline int isxdigit(int ch)
{
	if (isdigit(ch))
		return true;

	if ((ch >= 'a') && (ch <= 'f'))
		return true;

	return (ch >= 'A') && (ch <= 'F');
}

#endif
back to top