52 lines
922 B
C
52 lines
922 B
C
/*
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* $Id$
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*/
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/*
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* GT CLIPPER STANDARD HEADER
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*
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* File......: chrfirst.c
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* Author....: Andy M Leighton
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* BBS.......: The Dark Knight Returns
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* Net/Node..: 050/069
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* User Name.: Andy Leighton
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* Date......: 23/05/93
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* Revision..: 1.00
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*
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* This is an original work by Andy Leighton and is placed in the
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* public domain.
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*/
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#include "hbapi.h"
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HARBOUR HB_GT_CHRFIRST( void )
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{
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char *string;
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char *cset;
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int l1, l2;
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int p1, p2;
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if (ISCHAR(1) && ISCHAR(2)) {
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string = hb_parc(2);
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cset = hb_parc(1);
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l1 = hb_parclen(2);
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l2 = hb_parclen(1);
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p1 = p2 = 0;
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do {
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for (p2 = 0; (p2 < l2) && (cset[p2] != string[p1]); ++p2)
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;
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if (p2 < l2) {
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hb_retni(string[p1]);
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break;
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}
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} while (p1++ < l1);
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if (p2 >= l2)
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hb_retni(0);
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} else {
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hb_retni(-1); /* parameter mismatch - error NullStr */
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}
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}
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