29 lines
739 B
C++
29 lines
739 B
C++
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#include <iostream>
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#include <stdlib.h>
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#include <math.h>
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#include "tutorial_config.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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if (argc < 2) {
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std::cerr << argv[0] << " version " << tutorial_VERSION_MAJOR
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<< "." << tutorial_VERSION_MINOR << std::endl;
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std::cerr << "Usage: " << argv[0] << " number\n";
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return 1;
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}
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double inputvalue = atof(argv[1]);
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#ifdef USE_MYMATH
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std::cerr << "Using MYMATH" << std::endl;
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double outputvalue = mysqrt(inputvalue);
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#else
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std::cerr << "Using sqrt" << std::endl;
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double outputvalue = sqrt(inputvalue);
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#endif
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std::cout << "THe square root of " << inputvalue << " is " << outputvalue << std::endl;
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return 0;
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}
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