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//
// Copyright (c) 2017 The Khronos Group Inc.
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "harness/compat.h"

#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "procs.h"

static int max_verify_float( float *x, float *y, float *out, int numElements, int vecSize )
{
    for( int i = 0; i < numElements; i++ )
    {
        for( int j = 0; j < vecSize; j++ )
        {
            float v = ( x[ i * vecSize + j ] < y[ i ] ) ? y[ i ] : x[ i * vecSize + j ];
            if( v != out[ i * vecSize + j ] )
            {
                log_error( "Failure for vector size %d at position %d, element %d:\n\t max(%a, %a) = *%a vs %a\n", vecSize, i, j, x[ i * vecSize + j ], y[i], v,  out[ i * vecSize + j ] );
                return -1;
            }
        }
    }
    return 0;
}

static int max_verify_double( double *x, double *y, double *out, int numElements, int vecSize )
{
    for( int i = 0; i < numElements; i++ )
    {
        for( int j = 0; j < vecSize; j++ )
        {
            double v = ( x[ i * vecSize + j ] < y[ i ] ) ? y[ i ] : x[ i * vecSize + j ];
            if(    v != out[ i * vecSize + j ] )
            {
                log_error( "Failure for vector size %d at position %d, element %d:\n\t max(%a, %a) = *%a vs %a\n", vecSize, i, j, x[ i * vecSize + j ], y[i], v,  out[ i * vecSize + j ] );
                return -1;
            }
        }
    }
    return 0;
}

int test_maxf(cl_device_id device, cl_context context, cl_command_queue queue, int n_elems)
{
    return test_binary_fn( device, context, queue, n_elems, "max", false, max_verify_float, max_verify_double );
}