Tag: file-handling
All the articles with the tag "file-handling".
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How to Append to a File in C++ (std::ios::app)
Updated:Append text to an existing file in C++ with ofstream and std::ios::app. Learn app vs ate vs trunc, how to avoid overwriting your file, and how to log safely.
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How to Read a File Line by Line in C++
Updated:Read a text file line by line in C++ with ifstream and getline. Includes error handling, reading into a vector, parsing each line, and the common gotchas.
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How to Get the Size of a File in C++
Get a file's size in C++ with std::filesystem::file_size, or with seekg and tellg on older compilers. Includes error handling and formatting bytes as KB and MB.
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How to Write to a File in C++ (ofstream Explained)
Write text and numbers to a file in C++ with ofstream. Covers creating files, overwriting vs appending, writing a vector, formatting output and checking for errors.