fcloseall - Man Page
close all open streams
Standard C library (libc, -lc)
#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).
|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)
2022-12-15 Linux man-pages 6.03