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/* _PDCLIB_bigint_cmp( _PDCLIB_bigint_t const *, _PDCLIB_bigint_t const * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#ifndef REGTEST
#include "pdclib/_PDCLIB_internal.h"
int _PDCLIB_bigint_cmp( _PDCLIB_bigint_t const * _PDCLIB_restrict lhs, _PDCLIB_bigint_t const * _PDCLIB_restrict rhs )
{
int i;
if ( lhs->size != rhs->size )
{
return lhs->size - rhs->size;
}
for ( i = lhs->size - 1; i >= 0; --i )
{
if ( lhs->data[i] != rhs->data[i] )
{
return lhs->data[i] - rhs->data[i];
}
}
return 0;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
#include <stdint.h>
int main( void )
{
#ifndef REGTEST
_PDCLIB_bigint_t lhs, rhs;
_PDCLIB_bigint32( &lhs, 0 );
_PDCLIB_bigint64( &rhs, 0 );
TESTCASE( _PDCLIB_bigint_cmp( &lhs, &rhs ) == 0 );
_PDCLIB_bigint32( &lhs, 1 );
TESTCASE( _PDCLIB_bigint_cmp( &lhs, &rhs ) > 0 );
_PDCLIB_bigint32( &rhs, UINT32_C( 0x8000000 ) );
TESTCASE( _PDCLIB_bigint_cmp( &lhs, &rhs ) < 0 );
_PDCLIB_bigint64( &lhs, 1 );
TESTCASE( _PDCLIB_bigint_cmp( &lhs, &rhs ) < 0 );
_PDCLIB_bigint64( &lhs, UINT64_C( 0x0000000180000000 ) );
TESTCASE( _PDCLIB_bigint_cmp( &lhs, &rhs ) > 0 );
#endif
return TEST_RESULTS;
}
#endif
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