73 lines
2 KiB
C++
73 lines
2 KiB
C++
#include <iostream>
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#include <string>
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#include "argParse.hpp"
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void printHelp() {
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std::cout << "Usage:\n"
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"-h | --help Display this help message\n"
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"-t <integer>\n"
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" | --threads <integer> Set the number of threads to use (default 1)"
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<< std::endl;
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}
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int main(int argc, char **argv) {
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int threadCount = 1;
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{
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auto results = Ex02::ArgParse::parseArgs(
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argc,
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argv,
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{ // single args
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"-h",
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"--help",
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},
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{ // double args
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"-t",
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"--threads",
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});
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if(auto iter = results.find("-h"); iter != results.end()) {
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printHelp();
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return 0;
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} else if(auto iter = results.find("--help"); iter != results.end()) {
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printHelp();
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return 0;
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}
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const auto setThreadCount = [&threadCount] (auto iter) {
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try {
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threadCount = std::stoi(iter->second);
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} catch (const std::invalid_argument &e) {
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std::cout << "ERROR: Failed to parse thread count (invalid)"
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<< std::endl;
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return 1;
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} catch (const std::out_of_range &e) {
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std::cout << "ERROR: Failed to parse thread count (out of range)"
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<< std::endl;
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return 2;
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}
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return 0;
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};
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if(auto iter = results.find("-t"); iter != results.end()) {
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if(int result = setThreadCount(iter); result != 0) {
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return result;
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}
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} else if(auto iter = results.find("--threads"); iter != results.end()) {
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if(int result = setThreadCount(iter); result != 0) {
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return result;
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}
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}
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if(threadCount <= 0) {
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std::cout << "ERROR: Thread count set to invalid value ("
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<< threadCount
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<< ')'
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<< std::endl;
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return 3;
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}
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}
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return 0;
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}
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