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strlook.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*                  Copyright (c) 1985-2005 AT&T Corp.                  *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                            by AT&T Corp.                             *
*                                                                      *
*                A copy of the License is available at                 *
*            http://www.opensource.org/licenses/cpl1.0.txt             *
*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                  David Korn <dgk@research.att.com>                   *
*                   Phong Vo <kpv@research.att.com>                    *
*                                                                      *
***********************************************************************/
#pragma prototyped
/*
 * Glenn Fowler
 * AT&T Research
 */

#include <ast.h>

/*
 * return pointer to name in tab with element size siz
 * where the first member of each element is a char*
 *
 * the last name in tab must be 0
 *
 * 0 returned if name not found
 */

void*
strlook(const void* tab, size_t siz, register const char* name)
{
      register char*    t = (char*)tab;
      register char*    s;
      register int      c = *name;

      for (; s = *((char**)t); t += siz)
            if (*s == c && !strcmp(s, name))
                  return (void*)t;
      return 0;
}

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