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      1 /* isblank - compatibility implementation of isblank
      2  *
      3  * Copyright (c) 2015, NLnet Labs. All rights reserved.
      4  *
      5  * This software is open source.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  *
     11  * Redistributions of source code must retain the above copyright notice,
     12  * this list of conditions and the following disclaimer.
     13  *
     14  * Redistributions in binary form must reproduce the above copyright notice,
     15  * this list of conditions and the following disclaimer in the documentation
     16  * and/or other materials provided with the distribution.
     17  *
     18  * Neither the name of the NLNET LABS nor the names of its contributors may
     19  * be used to endorse or promote products derived from this software without
     20  * specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     25  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     26  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
     28  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     29  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     30  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     31  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     32  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 #include "config.h"
     36 
     37 /* return true for a blank character: space or tab */
     38 int isblank(int c);
     39 
     40 /* implementation of isblank. unsigned char is the argument */
     41 int
     42 isblank(int c)
     43 {
     44 	return (c==' ' || c=='\t');
     45 }
     46