The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/ctype.h

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    1 /*-
    2  * Copyright (c) 1982, 1988, 1991, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  * (c) UNIX System Laboratories, Inc.
    5  * All or some portions of this file are derived from material licensed
    6  * to the University of California by American Telephone and Telegraph
    7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
    8  * the permission of UNIX System Laboratories, Inc.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 4. Neither the name of the University nor the names of its contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  * $FreeBSD: releng/10.3/sys/sys/ctype.h 127976 2004-04-07 04:19:52Z imp $
   35  */
   36 
   37 #ifndef _SYS_CTYPE_H_
   38 #define _SYS_CTYPE_H_
   39 
   40 #ifdef _KERNEL
   41 
   42 #define isspace(c)      ((c) == ' ' || ((c) >= '\t' && (c) <= '\r'))
   43 #define isascii(c)      (((c) & ~0x7f) == 0)
   44 #define isupper(c)      ((c) >= 'A' && (c) <= 'Z')
   45 #define islower(c)      ((c) >= 'a' && (c) <= 'z')
   46 #define isalpha(c)      (isupper(c) || islower(c))
   47 #define isdigit(c)      ((c) >= '' && (c) <= '9')
   48 #define isxdigit(c)     (isdigit(c) \
   49                           || ((c) >= 'A' && (c) <= 'F') \
   50                           || ((c) >= 'a' && (c) <= 'f'))
   51 #define isprint(c)      ((c) >= ' ' && (c) <= '~')
   52 
   53 #define toupper(c)      ((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))
   54 #define tolower(c)      ((c) + 0x20 * (((c) >= 'A') && ((c) <= 'Z')))
   55 
   56 #endif
   57 #endif /* !_SYS_CTYPE_H_ */

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