fcloseall(3)

1fcloseall(3)               Library Functions Manual               fcloseall(3)
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NAME

6       fcloseall - close all open streams
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LIBRARY

9       Standard C library (libc, -lc)
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SYNOPSIS

12       #define _GNU_SOURCE         /* See feature_test_macros(7) */
13       #include <stdio.h>
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15       int fcloseall(void);
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DESCRIPTION

18       The  fcloseall()  function  closes  all  of  the calling process's open
19       streams.  Buffered output for each  stream  is  written  before  it  is
20       closed (as for fflush(3)); buffered input is discarded.
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22       The standard streams, stdin, stdout, and stderr are also closed.
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RETURN VALUE

25       This  function  returns 0 if all files were successfully closed; on er‐
26       ror, EOF is returned.
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ATTRIBUTES

29       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
30       tributes(7).
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32       ┌─────────────────────────────┬───────────────┬────────────────────────┐
33       │Interface                    │ Attribute     │ Value                  │
34       ├─────────────────────────────┼───────────────┼────────────────────────┤
35       │fcloseall()                  │ Thread safety │ MT-Unsafe race:streams │
36       └─────────────────────────────┴───────────────┴────────────────────────┘
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38       The  fcloseall()  function  does  not  lock  the  streams, so it is not
39       thread-safe.
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STANDARDS

42       GNU.
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