#define _GNU_SOURCE /* See feature_test_macros(7) */
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.
This function is a GNU extension.
close(2), fclose(3), fflush(3), fopen(3), setbuf(3)
This page is part of release 3.35 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://man7.org/linux/man-pages/.
GNU 2006-12-27 FCLOSEALL(3)
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