/* strpbrk.c - string search, string */ /* Copyright 1992-1993 Wind River Systems, Inc. */ /* modification history -------------------- 01c,25feb93,jdi documentation cleanup for 5.1. 01b,20sep92,smb documentation additions 01a,08jul92,smb written and documented. */ /* DESCRIPTION INCLUDE FILES: string.h SEE ALSO: American National Standard X3.159-1989 NOMANUAL */ #include "vxWorks.h" #include "string.h" /******************************************************************************* * * strpbrk - find the first occurrence in a string of a character from a given set (ANSI) * * This routine locates the first occurrence in string of any character * from string . * * INCLUDE FILES: string.h * * RETURNS: * A pointer to the character found in , or * NULL if no character from occurs in . * * SEE ALSO: strcspn() */ char * strpbrk ( const char * s1, /* string to search */ const char * s2 /* set of characters to look for in */ ) { char *scanp; int c; int sc; while ((c = *s1++) != 0) /* wait until end of string */ { /* loop, searching for character */ for (scanp = CHAR_FROM_CONST(s2); (sc = *scanp++) != 0;) { if (sc == c) return (CHAR_FROM_CONST(s1 - 1)); } } return (NULL); }
