Add time measurement
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@ -1,6 +1,8 @@
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#include <fmt/format.h>
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#include <vector>
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#include <fstream>
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#include <string>
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#include <chrono>
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#include <mergesort.h>
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@ -20,43 +22,45 @@ Does α depend on the size of the input? If it does, how should you modify
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your predictions and their graphical illustration?
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*/
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template<typename T>
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auto parse_file(std::ifstream &stream, std::vector<T> &vec) -> void {
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std::string buf;
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T convbuf;
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while (std::getline(stream, buf)) {
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convbuf = static_cast<T>(std::stoul(buf));
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vec.emplace_back(std::move(convbuf));
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}
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}
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int main(int argc, char *argv[]) {
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try {
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std::ifstream file("dataset.dat", std::ios_base::in);
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if (!file.is_open()) {
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fmt::print("Error opening file");
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return -1;
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}
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fmt::print("Opened file {} sucessfully!\n", "dummy");
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std::vector<int32_t> dataset;
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std::vector<int32_t> dataset{10, 3, 244, 23, 293, 2393, 302};
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parse_file(file, dataset);
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fmt::print("Read {} values from {}\n", dataset.size(), "dummy");
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// std::vector<int32_t> dataset;
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// int counter = 0;
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//
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// while(!file.eof()) {
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// int32_t buf;
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// file >> buf;
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// dataset.emplace_back(buf);
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// }
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//
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// fmt::print("Read {} values from {}\n", dataset.size(), "dummy");
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auto t1 = std::chrono::high_resolution_clock::now();
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algo::mergesort(dataset.begin(), dataset.end(), [](int32_t a, int32_t b) {
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return (a>b);
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return (a > b);
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});
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fmt::print("sorted");
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auto t2 = std::chrono::high_resolution_clock::now();
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// QFile outfile("dataset-sorted.dat");
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// if(!outfile.open(QIODevice::WriteOnly | QIODevice::Text)) {
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// fmt::print("Error! Could not create output file");
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// }
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//
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// for(auto &val : dataset) {
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// outfile.write(fmt::format("{}\n", val).c_str());
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// }
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//
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// file.close();
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// outfile.flush();
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// outfile.close();
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auto delay_ms = std::chrono::duration_cast<std::chrono::milliseconds>(t2 - t1);
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fmt::print("Sorted {} entries within {} ms.", dataset.size(), delay_ms.count());
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return 0;
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