Where do I find the code of standardized functions? (piefed.blahaj.zone)

submitted 4 days ago by akunohana@piefed.blahaj.zone to c/c_lang@programming.dev

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For instance, I wanted to see how printf is written. I looked into the stdio.h file, but there, I could only find the function declaration, no definition.

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[-] avidya@programming.dev 4 points 2 days ago

Check out GLIBC, the standard libc implementation for GNU/Linux, or the easier to read, minimalist, alternative libc MUSL.

Bootlin, runs the Elixir Code Cross Referencer that lets you easily hop between files. For instance, Here is the code for printf in GLIBC.

this post was submitted on 06 Jun 2026

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