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// A simple program that computes the square root of a number
#include <cmath>
#include <iostream>
#include <sstream>
#include <string>
#include "TutorialConfig.h"
// should we include the MathFunctions header?
#ifdef USE_MYMATH
# include "MathFunctions.h"
#endif
int main(int argc, char* argv[])
{
if (argc < 2) {
// report version
std::cout << argv[0] << " Version " << Tutorial_VERSION_MAJOR << "."
<< Tutorial_VERSION_MINOR << std::endl;
std::cout << "Usage: " << argv[0] << " number" << std::endl;
return 1;
}
double inputValue = std::stod(argv[1]);
// which square root function should we use?
#ifdef USE_MYMATH
double outputValue = mysqrt(inputValue);
#else
double outputValue = sqrt(inputValue);
#endif
std::cout << "The square root of " << inputValue << " is " << outputValue
<< std::endl;
return 0;
}
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