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/GNU Fortran 7

9.277 UMASK — Set the file creation mask

Description:

Sets the file creation mask to MASK. If called as a function, it returns the old value. If called as a subroutine and argument OLD if it is supplied, it is set to the old value. See umask(2).

Standard:

GNU extension

Class:

Subroutine, function

Syntax:
CALL UMASK(MASK [, OLD])
OLD = UMASK(MASK)
Arguments:
MASK Shall be a scalar of type INTEGER.
OLD (Optional) Shall be a scalar of type INTEGER.

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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gfortran/UMASK.html