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/* _PDCLIB_bigint2( _PDCLIB_bigint_t *, unsigned )
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"
_PDCLIB_bigint_t * _PDCLIB_bigint2( _PDCLIB_bigint_t * bigint, unsigned n )
{
int i;
bigint->size = ( n / 32 ) + 1;
bigint->data[ bigint->size - 1 ] = 1 << ( n - ( bigint->size - 1 ) * 32 );
for ( i = 0; i < bigint->size - 1; ++i )
{
bigint->data[ i ] = 0;
}
return bigint;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
#include <stdint.h>
int main( void )
{
#ifndef REGTEST
_PDCLIB_bigint_t big;
_PDCLIB_bigint_t * bigptr;
bigptr = _PDCLIB_bigint2( &big, 0 );
TESTCASE( bigptr == &big );
TESTCASE( big.size == 1 );
TESTCASE( big.data[0] == 1 );
_PDCLIB_bigint2( &big, 3 );
TESTCASE( big.size == 1 );
TESTCASE( big.data[0] == 8 );
_PDCLIB_bigint2( &big, 31 );
TESTCASE( big.size == 1 );
TESTCASE( big.data[0] == UINT32_C( 0x80000000 ) );
_PDCLIB_bigint2( &big, 32 );
TESTCASE( big.size == 2 );
TESTCASE( big.data[0] == 0 );
TESTCASE( big.data[1] == 1 );
_PDCLIB_bigint2( &big, 34 );
TESTCASE( big.size == 2 );
TESTCASE( big.data[0] == 0 );
TESTCASE( big.data[1] == 4 );
_PDCLIB_bigint2( &big, 63 );
TESTCASE( big.size == 2 );
TESTCASE( big.data[0] == 0 );
TESTCASE( big.data[1] == UINT32_C( 0x80000000 ) );
_PDCLIB_bigint2( &big, 64 );
TESTCASE( big.size == 3 );
TESTCASE( big.data[0] == 0 );
TESTCASE( big.data[1] == 0 );
TESTCASE( big.data[2] == 1 );
#endif
return TEST_RESULTS;
}
#endif
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