# 2.11BSD#431 - /usr/src/lib/libc/string/strcspn.c

##### Functions

    strcspn           X

       1: /*-
       2:  * Copyright (c) 1990, 1993
       3:  *	The Regents of the University of California.  All rights reserved.
       4:  *
       5:  * This code is derived from software contributed to Berkeley by
       6:  * Chris Torek.
       7:  *
       8:  * Redistribution and use in source and binary forms, with or without
       9:  * modification, are permitted provided that the following conditions
      10:  * are met:
      11:  * 1. Redistributions of source code must retain the above copyright
      12:  *    notice, this list of conditions and the following disclaimer.
      13:  * 2. Redistributions in binary form must reproduce the above copyright
      14:  *    notice, this list of conditions and the following disclaimer in the
      15:  *    documentation and/or other materials provided with the distribution.
      16:  * 3. All advertising materials mentioning features or use of this software
      17:  *    must display the following acknowledgement:
      18:  *	This product includes software developed by the University of
      19:  *	California, Berkeley and its contributors.
      20:  * 4. Neither the name of the University nor the names of its contributors
      21:  *    may be used to endorse or promote products derived from this software
      22:  *    without specific prior written permission.
      23:  *
      24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      34:  * SUCH DAMAGE.
      35:  */
      36:
      37: #if defined(LIBC_SCCS) && !defined(lint)
      38: static char sccsid[] = "@(#)strcspn.c	8.1.1 (2.11BSD) 1996/1/11";
      39: #endif /* LIBC_SCCS and not lint */
      40:
      41: #include <sys/types.h>
      42: #include <string.h>
      43:
      44: /*
      45:  * Span the complement of string s2.
      46:  */
      47: size_t
      48: strcspn(s1, s2)
      49:     char *s1;
      50:     char *s2;
      51: {
      52:     register char *p, *spanp;
      53:     register char c, sc;
      54:
      55:     /*
      56: 	 * Stop as soon as we find any character from s2.  Note that there
      57: 	 * must be a NUL in s2; it suffices to stop when we find that, too.
      58: 	 */
      59:     for (p = s1;;) {
      60:         c = *p++;
      61:         spanp = s2;
      62:         do {
      63:             if ((sc = *spanp++) == c)
      64:                 return (p - 1 - s1);
      65:         } while (sc != 0);
      66:     }
      67:     /* NOTREACHED */
      68: }

#### Defined functions

strcspn defined in line 47; used 5 times

- in /usr/include/string.h line 22
- in /usr/src/include/string.h line 28
- in /usr/src/include/strings.h line 27
- in /usr/src/libexec/tcpd/options.c line 149, 426

#### Defined variables

sccsid defined in line 38; never used

Last modified: 1996-01-12 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 1089 |