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41 lines
852 B
C
41 lines
852 B
C
/*
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* GT CLIPPER STANDARD HEADER
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*
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* Author....: Andy M Leighton
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* BBS.......: The Dark Knight Returns
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* Date......: 1993-05-23
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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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HB_FUNC( GT_ATDIFF )
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{
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if( HB_ISCHAR( 1 ) && HB_ISCHAR( 2 ) )
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{
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const char * s1 = hb_parc( 1 );
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const char * s2 = hb_parc( 2 );
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HB_ISIZ len = hb_parclen( 2 );
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HB_ISIZ pos;
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/*
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loop through comparing both strings
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NOTE: pos starts at 1, so as to return a string index
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for CLIPPER
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*/
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for( pos = 1; ( pos <= len ) && ( *s1 == *s2 ); s2++, s1++ )
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pos++;
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if( pos > len ) /* strings match exactly!!! */
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hb_retns( 0 );
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else
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hb_retns( pos );
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}
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else
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hb_retns( -1 );
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}
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