glibc, glib and gnulib

Question

what are differences in the strength and features in gnulib glib and glibc Thanks!

Answer 1

glibc is a core C runtime library. It provides things like printf(3) and fopen(3).

glib is an object-based event loop and utility library written in C.

gnulib is a library that provides an adapter from the POSIX API to the native API.

All three are used for completely different tasks.