C standard library

The GNU C Library, commonly known as glibc, is the GNU Project implementation of the C standard library. It provides a wrapper around the system calls of the Linux kernel and other kernels for application use. Despite its name, it now also directly supports C++ (and, indirectly, other programming languages). It was started in the 1980s by the Free Software Foundation (FSF) for the GNU operating system.

standard library for the C programming language, as specified in the ANSI C standard, providing macros, type definitions and functions for different tasks

C standard library header file providing mathematical functions

350px|thumb|alt=Diagram illustrating syntax of printf function. The first argument to the function is a template string, which may contain format specifiers, which are introduced with the percent sign (%) character. Format specifiers instruct printf how to interpret and output values given in the corresponding arguments which follow the format string. printf replaces the format specifiers with the accordingly-interpreted contents of the remaining arguments, and outputs the result.|An example call to the printf function

In computing, end-of-file (EOF) is a condition in a computer operating system where no more data can be read from a data source. The data source is usually called a file or stream.

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C standard library header file

musl is a C standard library intended for operating systems based on the Linux kernel, released under the MIT License. It was developed by Rich Felker to write a clean, efficient, and standards-conformant libc implementation.

implementation of the standard C library for Android operating system

C standard library header

data type supported by the C programming language

header file

dietlibc is a C standard library subset released under the GNU General Public License Version 2, and proprietary licenses are also available. It was developed with the help of about 100 volunteers by Felix von Leitner with the goal to compile and link programs to the smallest possible size. dietlibc was developed from scratch and thus only implements the most important and commonly used functions. It is mainly used in embedded devices.

handling of strings in the C programming language

computer security attack in which a subroutine return address on a call stack is replaced by an address of a subroutine already present in executable memory, bypassing the no-execute bit

C standard library header

Input/output functionality in the C programming language

memory management

'''''', short for scan formatted, is a C standard library function that reads and parses text from standard input.

Newlib is a C standard library implementation intended for use on embedded systems. It is a conglomeration of several library parts, all under free software licenses that make them easily usable on embedded products.

' (also known as ') is a set of execution startup routines linked into a C program that performs any initialization work required before calling the program's main function. After the main function completes the control returns to crt0, which calls the library function exit(0) to terminate the process.

system call used in many computer operating systems

In computing, klibc is a minimalistic subset of the standard C library developed by H. Peter Anvin. It was developed mainly to be used during the Linux startup process, and it is part of the early user space, i.e. components used during kernel startup, but which do not run in kernel mode. These components do not have access to the standard library (usually glibc or musl) used by normal userspace programs.