Where to find stdio.h functions implementations?

Question

I study C and I noticed that I can\'t find the implementation file for some header files like, for example, stdio.h which is a library which contains a lot of i

Answer 1

Download one of these:

• glibc
• uclibc
• dietlibc
• BSD libc

Or, even better, download several of these and compare their implementations. Of course, these are likely doing a lot of things different compared to your particular standard library implementation, but would still be quite interesting for e.g. non-platform-specific functionality such as sprintf.