66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
//
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// Created by light on 19-12-12.
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//
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#include <iostream>
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#include <vector>
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#include <cstring>
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#include <fstream>
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using namespace std;
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vector<string> read_lines_from_file(string &file_name) {
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vector<string> lines;
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string line;
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ifstream file_handle (file_name.c_str());
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while (file_handle.good() && !file_handle.eof()) {
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getline(file_handle, line);
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lines.push_back(line);
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}
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file_handle.close();
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return lines;
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}
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vector<string> * read_lines_from_file1(string &file_name) {
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vector<string> * lines;
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string line;
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ifstream file_handle (file_name.c_str());
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while (file_handle.good() && !file_handle.eof()) {
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getline(file_handle, line);
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lines->push_back(line);
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}
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file_handle.close();
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return lines;
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}
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vector<string> * read_lines_from_file1_1(string &file_name) {
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vector<string> * lines=new vector<string>;
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string line;
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ifstream file_handle (file_name.c_str());
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while (file_handle.good() && !file_handle.eof()) {
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getline(file_handle, line);
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lines->push_back(line);
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}
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file_handle.close();
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return lines;
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}
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int main() {
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// get file name from the first argument
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string file_name ("/home/light/CLionProjects/Morden_C++/CMakeLists.txt");
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int count = read_lines_from_file(file_name).size();
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cout << "File " << file_name << " contains " << count << " lines.";
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cout<<endl;
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// string file_name1 ("/home/light/CLionProjects/Morden_C++/CMakeLists.txt");
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// int count1 = read_lines_from_file1(file_name1)->size();
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// cout << "File " << file_name << " contains " << count1 << " lines.";
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string file_name1 ("/home/light/CLionProjects/Morden_C++/CMakeLists.txt");
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int count1 = read_lines_from_file1_1(file_name1)->size();
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cout << "File " << file_name << " contains " << count1 << " lines.";
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return 0;
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} |