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_Exit

Syntax

 
#include <stdlib.h>

void _Exit(int exit_code);

Description

This function exits the program, returning exit_code to the calling process. No additional processing (such as closing file descriptors or calls to the static destructor functions) is done, and any atexit functions are not called; only the hardware interrupt handlers are unhooked, to prevent system crashes.

Return Value

This function does not return.

Portability

ANSI/ISO C C99 (see note 1); not C89
POSIX 1003.1-2001; not 1003.2-1992

Notes:

  1. Depending on the implementation, _Exit may do the additional processing described above.

Example

 
if (argc < 4)
{
  print_usage();
  _Exit(1);
}

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