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#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include "SigProc_FLP.h"

/* sum of squares of a silk_float array, with result as double */

double silk_energy_FLP(

    const silk_float    *data,

    opus_int            dataSize

)

{

    opus_int i;

    double   result;

    /* 4x unrolled loop */

    result = 0.0;

    for( i = 0; i < dataSize - 3; i += 4 ) {

        result += data[ i + 0 ] * (double)data[ i + 0 ] +

                  data[ i + 1 ] * (double)data[ i + 1 ] +

                  data[ i + 2 ] * (double)data[ i + 2 ] +

                  data[ i + 3 ] * (double)data[ i + 3 ];

    }

    /* add any remaining products */

    for( ; i < dataSize; i++ ) {

        result += data[ i ] * (double)data[ i ];

    }

    silk_assert( result >= 0.0 );

    return result;

}