FCLOSEALL(3) Linux Programmer's Manual FCLOSEALL(3)
fcloseall - close all open streams
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <stdio.h> int fcloseall(void);
The 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.
This function returns 0 if all files were successfully closed; on error, EOF is returned.
For an explanation of the terms used in this section, see attributes(7). ┌───────────────────────┬───────────────┬────────────────────────┐ │Interface │ Attribute │ Value │ ├───────────────────────┼───────────────┼────────────────────────┤ │fcloseall() │ Thread safety │ MT-Unsafe race:streams │ └───────────────────────┴───────────────┴────────────────────────┘ The fcloseall() function does not lock the streams, so it is not thread-safe.
This function is a GNU extension.
close(2), fclose(3), fflush(3), fopen(3), setbuf(3)
This page is part of release 5.12 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU 2021-03-22 FCLOSEALL(3)
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