Header <fstream> menyediakan kelas stream untuk membaca dan menulis data secara persisten ke media penyimpanan fisik.
ofstream (Output File Stream): Membuat dan menulis data teks atau binary ke dalam berkas baru.ifstream (Input File Stream): Membaca isi berkas baris demi baris menggunakan fungsi std::getline().is_open(): Selalu periksa apakah file berhasil dibuka sebelum melakukan operasi I/O untuk mencegah crash.<!DOCTYPE html>
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<span class="dot dot-red"></span>
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<span style="margin-left: 8px; font-weight: bold; color: #38bdf8;">⚙️ C++ Files - Skillance C++20</span>
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<span class="comment">// Skrip C++20 - Skillance Academy Indonesia</span>
#include <iostream>
#include <fstream>
#include <string>
int main() {
// 1. Menulis ke File (ofstream)
std::ofstream fileKeluar("skillance_log.txt");
if (fileKeluar.is_open()) {
fileKeluar << "Skillance Academy - Log Sistem C++20\n";
fileKeluar << "Status: Operasional Sempurna\n";
fileKeluar.close();
}
// 2. Membaca dari File (ifstream)
std::ifstream fileMasuk("skillance_log.txt");
std::string baris;
if (fileMasuk.is_open()) {
while (std::getline(fileMasuk, baris)) {
std::cout << "[File] " << baris << "\n";
}
fileMasuk.close();
}
return 0;
}
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<div style="color: #64748b; margin-bottom: 6px;">[Terminal Output] > g++ -std=c++20 main.cpp -o main && ./main</div>
<div style="color: #4ade80; font-weight: bold;">[File] Skillance Academy - Log Sistem C++20<br>[File] Status: Operasional Sempurna</div>
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</html>Program berhasil menulis dua baris teks ke berkas fisik dan membacanya kembali ke layar menggunakan stream ifstream.