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/GNU Fortran 5

9.137 IERRNO — Get the last system error number

Description:
Returns the last system error number, as given by the C errno variable.
Standard:
GNU extension
Class:
Function
Syntax:
RESULT = IERRNO()
Arguments:
None.
Return value:
The return value is of type INTEGER and of the default integer kind.
See also:
PERROR

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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-5.4.0/gfortran/IERRNO.html