CMake/Tests/FindGSL/rng/main.cc

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#include "gsl/gsl_rng.h"
#include <math.h>
int main()
{
// return code
int retval = 1;
// create a generator
gsl_rng* generator;
generator = gsl_rng_alloc(gsl_rng_mt19937);
// Read a value.
double const Result = gsl_rng_uniform(generator);
// Check value
double const expectedResult(0.999741748906672);
if (fabs(expectedResult - Result) < 1.0e-6)
retval = 0;
// free allocated memory
gsl_rng_free(generator);
return retval;
}