STDLIB(3)

💖 NAME 💖

okay so bestie, this is STDLIB(3) from the Library Functions Manual, and the name is literally stdlib — standard library definitions. no cap, it's giving “the header page you need to know” energy. 🫶

✨ SYNOPSIS ✨

#include <stdlib.h>

🎀 DESCRIPTION 🎀

The <stdlib.h> header defines the following types and macros, and yes, we are listing every single one:

1. NULL — an implementation-defined null pointer constant. 💅
2. size_t and wchar_t — integer types described in stddef(3). ✨
3. div_t, ldiv_t, and lldiv_t — structures that are returned by the div(3), ldiv(3), and lldiv(3) functions, respectively. 🎀
4. RAND_MAX — a macro which expands to an integer constant that is the maximum value returned by the rand(3) function. 🔥
5. MB_CUR_MAX — an integer expression of type size_t whose value is the maximum number of bytes in a character specified by the current locale. 🌸
6. EXIT_SUCCESS and EXIT_FAILURE — macros which expand to integer constants suitable for use as an argument to the exit(3) function. 👑

The <stdlib.h> header also prototypes several important functions such as abort(3), atoi(3), bsearch(3), free(3), malloc(3), and strtol(3). iconic lineup, honestly. 🦋

🦋 SEE ALSO 🦋

• stddef(3)
• types(3)
• unistd(3)

⭐ STANDARDS ⭐

As described here, the <stdlib.h> header conforms to ISO/IEC 9899:1999 (“ISO C99”) and IEEE Std 1003.1-2001 (“POSIX.1”). periodt. 🌈

👑 HISTORY 👑

In the current form the <stdlib.h> header was introduced in NetBSD 0.8. 💜

mwah 💖 this page is from Debian, dated April 10, 2011, and it’s STDLIB(3) — byeeee 🎀