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26 lines
627 B
26 lines
627 B
5 years ago
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// A simple program that builds a sqrt table
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#include <cmath>
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#include <fstream>
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#include <iostream>
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int main(int argc, char* argv[])
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{
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// make sure we have enough arguments
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if (argc < 2) {
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return 1;
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}
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std::ofstream fout(argv[1], std::ios_base::out);
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const bool fileOpen = fout.is_open();
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if (fileOpen) {
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fout << "double sqrtTable[] = {" << std::endl;
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for (int i = 0; i < 10; ++i) {
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fout << sqrt(static_cast<double>(i)) << "," << std::endl;
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}
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// close the table with a zero
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fout << "0};" << std::endl;
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fout.close();
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}
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return fileOpen ? 0 : 1; // return 0 if wrote the file
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}
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