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/* _PDCLIB_bigint64( _PDCLIB_bigint_t *, uint_least64_t )
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"
#include <stdint.h>
_PDCLIB_bigint_t * _PDCLIB_bigint64( _PDCLIB_bigint_t * bigint, uint_least64_t value )
{
if ( value == UINT64_C( 0 ) )
{
bigint->size = 0;
return bigint;
}
bigint->data[0] = (uint_least32_t)( value & UINT32_C( 0xFFFFFFFF ) );
if ( ( bigint->data[1] = (uint_least32_t)( value >> 32 ) ) > 0 )
{
bigint->size = 2;
}
else
{
bigint->size = 1;
}
return bigint;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
#include <stdint.h>
int main( void )
{
#ifndef REGTEST
_PDCLIB_bigint_t big;
_PDCLIB_bigint64( &big, 0 );
TESTCASE( big.size == 0 );
_PDCLIB_bigint64( &big, UINT64_C( 0x12345678 ) );
TESTCASE( big.size == 1 );
TESTCASE( big.data[0] == UINT32_C( 0x12345678 ) );
_PDCLIB_bigint64( &big, UINT64_C( 0x1234567890abcdef ) );
TESTCASE( big.size == 2 );
TESTCASE( big.data[0] == UINT32_C( 0x90abcdef ) );
TESTCASE( big.data[1] == UINT32_C( 0x12345678 ) );
#endif
return TEST_RESULTS;
}
#endif
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