74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
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/* memset_s( void *, rsize_t, int, rsize_t )
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This file is part of the Public Domain C Library (PDCLib).
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Permission is granted to use, modify, and / or redistribute at will.
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*/
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#define __STDC_WANT_LIB_EXT1__ 1
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#include <string.h>
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#include <stdint.h>
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#include <stdlib.h>
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#ifndef REGTEST
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errno_t memset_s( void * s, rsize_t smax, int c, rsize_t n )
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{
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unsigned char * p = ( unsigned char * ) s;
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if ( s == NULL || smax > RSIZE_MAX || n > RSIZE_MAX || n > smax )
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{
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if ( s != NULL && smax <= RSIZE_MAX )
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{
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memset( s, c, smax );
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}
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_PDCLIB_constraint_handler( _PDCLIB_CONSTRAINT_VIOLATION( _PDCLIB_EINVAL ) );
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return _PDCLIB_EINVAL;
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}
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while ( n-- )
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{
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*p++ = ( unsigned char ) c;
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}
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return 0;
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}
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#endif
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#ifdef TEST
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#include "_PDCLIB_test.h"
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#if ! defined( REGTEST ) || defined( __STDC_LIB_EXT1__ )
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static int HANDLER_CALLS = 0;
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static void test_handler( const char * _PDCLIB_restrict msg, void * _PDCLIB_restrict ptr, errno_t error )
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{
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++HANDLER_CALLS;
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}
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#endif
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int main( void )
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{
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#if ! defined( REGTEST ) || defined( __STDC_LIB_EXT1__ )
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char s[] = "xxxxxxxxx";
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set_constraint_handler_s( test_handler );
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TESTCASE( memset_s( s, 10, 'o', 10 ) == 0 );
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TESTCASE( s[9] == 'o' );
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TESTCASE( memset_s( s, 10, '_', ( 0 ) ) == 0 );
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TESTCASE( s[0] == 'o' );
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TESTCASE( memset_s( s, 10, '_', 1 ) == 0 );
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TESTCASE( s[0] == '_' );
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TESTCASE( s[1] == 'o' );
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TESTCASE( HANDLER_CALLS == 0 );
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#endif
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return TEST_RESULTS;
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}
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#endif
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