fcloseall - Online Linux Manual PageSection : 3
Updated : 2022-12-15
Source : Linux man-pages 6.03

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NAMEfcloseall − close all open streams

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LIBRARYStandard C library (libc, −lc)

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

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

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RETURN VALUEThis function returns 0 if all files were successfully closed; on error, EOF is returned.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue fcloseall() Thread safetyMT-Unsafe race:streams The fcloseall() function does not lock the streams, so it is not thread-safe.

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STANDARDSThis function is a GNU extension.

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SEE ALSOclose(2), fclose(3), fflush(3), fopen(3), setbuf(3) 0

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