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// Copyright (c) 2017-2023, University of Tennessee. All rights reserved.
// SPDX-License-Identifier: BSD-3-Clause
// This program is free software: you can redistribute it and/or modify it under
// the terms of the BSD 3-Clause license. See the accompanying LICENSE file.
#include <stdio.h>
#include <complex>
#include "config.h"
//------------------------------------------------------------------------------
#define BLAS_ddot FORTRAN_NAME( ddot, DDOT )
// result return directly
#ifdef __cplusplus
extern "C"
#endif
double BLAS_ddot(
const blas_int* n,
const double* x, const blas_int* incx,
const double* y, const blas_int* incy );
//------------------------------------------------------------------------------
int main()
{
// If blas_int is 32-bit, but BLAS actually interprets it as 64-bit,
// BLAS will see n = 0x500000005 and segfault.
// If blas_int is 64-bit, BLAS can interpret it as 32-bit or 64-bit
// to see n = 5 and pass.
blas_int n[] = { 5, 5 }, ione = 1;
double x[] = { 1, 2, 3, 4, 5 };
double y[] = { 5, 4, 3, 2, 1 };
for (int i = 0; i < n[0]; ++i) {
printf( "x[ %d ] = %.1f; y[ %d ] = %.1f\n",
i, x[ i ],
i, y[ i ] );
}
double result = BLAS_ddot( n, x, &ione, y, &ione );
printf( "result = %.1f; should be 35.0\n", result );
bool okay = (result == 35);
printf( "%s\n", okay ? "ok" : "failed" );
return ! okay;
}
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