CMake/Tests/Tutorial/Step2/tutorial.cxx

34 lines
727 B
C++
Raw Normal View History

2005-11-09 21:21:05 +00:00
// A simple program that computes the square root of a number
#include "TutorialConfig.h"
#include <math.h>
2005-11-09 21:21:05 +00:00
#include <stdio.h>
2005-11-10 20:13:54 +00:00
#include <stdlib.h>
2005-11-09 21:21:05 +00:00
#ifdef USE_MYMATH
#include "MathFunctions.h"
#endif
int main(int argc, char* argv[])
2005-11-09 21:21:05 +00:00
{
if (argc < 2) {
fprintf(stdout, "%s Version %d.%d\n", argv[0], Tutorial_VERSION_MAJOR,
2005-11-09 21:21:05 +00:00
Tutorial_VERSION_MINOR);
fprintf(stdout, "Usage: %s number\n", argv[0]);
2005-11-09 21:21:05 +00:00
return 1;
}
2005-11-09 21:21:05 +00:00
double inputValue = atof(argv[1]);
double outputValue = 0;
2005-11-09 21:21:05 +00:00
if (inputValue >= 0) {
2005-11-09 21:21:05 +00:00
#ifdef USE_MYMATH
outputValue = mysqrt(inputValue);
2005-11-09 21:21:05 +00:00
#else
outputValue = sqrt(inputValue);
2005-11-09 21:21:05 +00:00
#endif
}
2005-11-09 21:21:05 +00:00
fprintf(stdout, "The square root of %g is %g\n", inputValue, outputValue);
2005-11-09 21:21:05 +00:00
return 0;
}