Summary
This episode demonstrates how to create type-safe, RAII-compliant wrappers around C library functions like fopen and fread. Jason shows that most POSIX manual page examples leak resources and have incomplete error handling, then builds a comprehensive wrapper using unique_ptr with custom deleters, strong typing with filesystem::path, consteval mode strings, and [[nodiscard]] result types. The final solution eliminates resource leaks, prevents parameter order mistakes through strong typing, and provides complete error reporting with minimal usage code.
Related C++ Standard Sections
This episode covers topics found in these sections of the C++ standard:
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[fs.class.filesystem.error.general]59% match -
[out.ptr.t]46% match -
[c.files]40% match -
[depr.filesystems]40% match