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82332f81bb
* Update minimum required version to 3.10 * Use VERSION argument to project command rather than separate variables * Replace `endif(USE_MYMATH)` with more modern `endif()` * Simplify the call to 'configure_file()' * Add comments to tutorial.cxx to use as anchors in documentation * Remove CMakeLists and TutorialConfig.h.in files that users should create. Consequently, remove Step1 from CMake tests.
23 lines
537 B
C++
23 lines
537 B
C++
// A simple program that computes the square root of a number
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#include <cmath>
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#include <cstdlib>
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#include <iostream>
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#include <string>
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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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std::cout << "Usage: " << argv[0] << " number" << std::endl;
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return 1;
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}
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// convert input to double
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const double inputValue = atof(argv[1]);
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// calculate square root
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const double outputValue = sqrt(inputValue);
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std::cout << "The square root of " << inputValue << " is " << outputValue
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<< std::endl;
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return 0;
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}
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