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