Gsl.cpp

Go to the documentation of this file.

 
#include <map>     // for map
#include <string>  // for string
 
#include <boost/format.hpp>  // for format
 
#include <gsl/gsl_sf_bessel.h>  // for gsl_sf_bessel_J0
#include <gsl/gsl_version.h>
 
#include "ElementsKernel/ProgramHeaders.h"  // for including all Program/related headers
#include "ElementsKernel/Unused.h"          // for ELEMENTS_UNUSED
 
using std::map;
using std::string;
 
namespace Elements {
namespace Examples {
 
class Gsl : public Program {
 
public:
  ExitCode mainMethod(ELEMENTS_UNUSED map<string, VariableValue>& args) override {
 
    auto log = Logging::getLogger("GslExample");
 
    log.info() << "GSL version: " << gsl_version;
 
    double x = 5.0;
    double y = gsl_sf_bessel_J0(x);
 
    log.info() << boost::format("J0(%g) = %.18e\n") % x % y;
 
    return ExitCode::OK;
  }
};
 
}  // namespace Examples
}  // namespace Elements
 
MAIN_FOR(Elements::Examples::Gsl)