ctype.h

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/*-
 * Copyright (c) 1982, 1988, 1991, 1993
 *  The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

/*
 * Portions copyright (c) 2009-2014, ARM Limited and Contributors.
 * All rights reserved.
 */

#ifndef __CTYPE_H__
#define __CTYPE_H__

#ifdef __cplusplus
extern "C" {
#endif

static inline int isspace(int c)
{
    return c == ' ' || (c >= '\t' && c <= '\r');
}

static inline int isascii(int c)
{
    return !(c & ~0x7f);
}

static inline int isupper(int c)
{
    return c >= 'A' && c <= 'Z';
}

static inline int islower(int c)
{
    return c >= 'a' && c <= 'z';
}

static inline int isalpha(int c)
{
    return isupper(c) || islower(c);
}

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

static inline int isalnum(int c)
{
    return isdigit(c) || isalpha(c);
}

static inline int isblank(int c)
{
    return c == ' ' || c == '\t';
}

static inline int isxdigit(int c)
{
    return isdigit(c) || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f');
}

static inline int isprint(int c)
{
    return c >= ' ' && c <= '~';
}

static inline int isgraph(int c)
{
    return c != ' ' && isprint(c);
}

static inline int ispunct(int c)
{
    return isgraph(c) && !isalnum(c);
}

static inline int iscntrl(int c)
{
    return !isprint(c);
}

static inline int toupper(int c)
{
    return c - 0x20 * (c >= 'a' && c <= 'z');
}

static inline int tolower(int c)
{
    return c + 0x20 * (c >= 'A' && c <= 'Z');
}

#ifdef __cplusplus
}
#endif

#endif /* !__CTYPE_H__ */