[thirdparty/gcc.git] / gcc / fortran / doc / gfortran / runtime / gfortranunbufferedall.rst

..
  Copyright 1988-2022 Free Software Foundation, Inc.
  This is part of the GCC manual.
  For copying conditions, see the copyright.rst file.

.. _gfortran_unbuffered_all:

GFORTRAN_UNBUFFERED_ALL---Do not buffer I/O on all units
********************************************************

This environment variable controls whether all I/O is unbuffered.  If
the first letter is :samp:`y`, :samp:`Y` or :samp:`1`, all I/O is
unbuffered.  This will slow down small sequential reads and writes.  If
the first letter is :samp:`n`, :samp:`N` or :samp:`0`, I/O is buffered.
This is the default.
Commit	Line	Data
c63539ff ML	1	..
	2	Copyright 1988-2022 Free Software Foundation, Inc.
	3	This is part of the GCC manual.
	4	For copying conditions, see the copyright.rst file.
	5
	6	.. _gfortran_unbuffered_all:
	7
	8	GFORTRAN_UNBUFFERED_ALL---Do not buffer I/O on all units
	9	********************************************************
	10
	11	This environment variable controls whether all I/O is unbuffered. If
	12	the first letter is :samp:`y`, :samp:`Y` or :samp:`1`, all I/O is
	13	unbuffered. This will slow down small sequential reads and writes. If
	14	the first letter is :samp:`n`, :samp:`N` or :samp:`0`, I/O is buffered.
3ed1b4ce	15	This is the default.