34 lines
722 B
C
Executable File
34 lines
722 B
C
Executable File
/* f4true.c (c)Copyright Sequiter Software Inc., 1988-1996. All rights reserved.
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Returns a true or false.
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*/
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#include "d4all.h"
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#ifndef S4UNIX
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#ifdef __TURBOC__
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#pragma hdrstop
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#endif
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#endif
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#include <ctype.h>
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int S4FUNCTION f4true( const FIELD4 *field )
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{
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char charValue ;
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#ifdef S4VBASIC
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if ( c4parm_check( (void *)field, 3, E90537 ) )
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return -1 ;
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#endif
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#ifdef E4PARM_HIGH
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if ( field == 0 )
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return error4( 0, e4parm_null, E90537 ) ;
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if ( f4type( field ) != r4log )
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error4( field->data->codeBase, e4parm, E81409 ) ;
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#endif
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charValue = (char) toupper( *f4ptr( field ) ) ;
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return ( charValue == 'Y' || charValue == 'T' ) ? 1 : 0 ;
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}
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