C

The C library is implemented much differently from scripting languages like python. A standard is released defining what the standard-library should include (ex C99, C97, C11, C17, C18). Libraries are then built from that standard (glibc, MSCVRT, ..).

NOTE:

There are different implementations of the C language.

glibc

Documentation

wikipedia: stdlib	https://en.wikipedia.org/wiki/C_standard_library
devdocs documentation	https://devdocs.io/c/	attempt for a one-size-fits all C stdlib
C97, C99, ...	https://stackoverflow.com/questions/81656/where-do-i-find-the-current-c-or-c-standard-documents	c standard
glibc	http://www.gnu.org/software/libc/manual/html_node/index.html	GNU C library (gnu implementation of stdlib)
MSVCRT	??	Windows implementation of stdlib
bsd libc	??	OSX, FreeBSD, NetBSD, OpenBSD implementation of stdlib

Tutorials

Learning C (build lisp)

http://buildyourownlisp.com/contents

C libraries

c external libraries

Intro/Reference

c Python to c

c anatomy

c compilers

c libraries

c valgrind

c stack/heap

Basics

c input/output

c variables

c functions

c loops

c conditionals

c operators

c projects

c pointers

c errors/exceptions

c files/streams