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