Generate and return .true.
if the input file
(or unit
) is connected to a unit
(or file
), and .false.
otherwise.
This generic functional interface is a simple convenience wrapper around the Fortran intrinsic inquire()
statement.
- Parameters
-
[in] | unit | : The input scalar, or array of arbitrary rank, of type integer of default kind IK representing the file unit whose connection status is to be checked.
(optional, it must be present if and only if the input argument file is missing.) |
[in] | file | : The input scalar, or array of arbitrary rank, of type character of default kind SK representing the file path whose connection status is to be checked.
(optional, it must be present if and only if the input argument unit is missing.) |
- Returns
opened
: The output scalar, or array of same rank, shape, and size as the input array-like argument, of type logical
of default kind LK.
It is .true.
if and only if the input unit
or file
is already connected (opened).
Otherwise, it is .false.
.
Possible calling interfaces ⛓
logical(LK) :: opened
Generate and return .true. if the input file (or unit) is connected to a unit (or file),...
This module contains classes and procedures for input/output (IO) or generic display operations on st...
This module defines the relevant Fortran kind type-parameters frequently used in the ParaMonte librar...
integer, parameter LK
The default logical kind in the ParaMonte library: kind(.true.) in Fortran, kind(....
- Warning
- This procedure does not gracefully handle unexpected runtime errors.
If error handling is needed, use the Fortran intrinsic inquire()
with arguments iostat
and iomsg
present.
- See also
- isPreconnected
Example usage ⛓
3 use iso_fortran_env,
only:
output_unit,
input_unit,
error_unit
11 type(display_type) :: disp
21 call disp%show(
"open(newunit = unit, file = 'temp.tmp')")
22 open(newunit
= unit, file
= 'temp.tmp')
30 call disp%show(
"isOpen([output_unit, input_unit, error_unit])")
This is a generic method of the derived type display_type with pass attribute.
This is a generic method of the derived type display_type with pass attribute.
type(display_type) disp
This is a scalar module variable an object of type display_type for general display.
integer, parameter IK
The default integer kind in the ParaMonte library: int32 in Fortran, c_int32_t in C-Fortran Interoper...
integer, parameter SK
The default character kind in the ParaMonte library: kind("a") in Fortran, c_char in C-Fortran Intero...
Generate and return an object of type display_type.
Example Unix compile command via Intel ifort
compiler ⛓
3ifort -fpp -standard-semantics -O3 -Wl,-rpath,../../../lib -I../../../inc main.F90 ../../../lib/libparamonte* -o main.exe
Example Windows Batch compile command via Intel ifort
compiler ⛓
2set PATH=..\..\..\lib;%PATH%
3ifort /fpp /standard-semantics /O3 /I:..\..\..\include main.F90 ..\..\..\lib\libparamonte*.lib /exe:main.exe
Example Unix / MinGW compile command via GNU gfortran
compiler ⛓
3gfortran -cpp -ffree-line-length-none -O3 -Wl,-rpath,../../../lib -I../../../inc main.F90 ../../../lib/libparamonte* -o main.exe
Example output ⛓
6open(newunit
= unit, file
= 'temp.tmp')
13isOpen([
output_unit,
input_unit,
error_unit])
- Test:
- test_pm_io
Final Remarks ⛓
If you believe this algorithm or its documentation can be improved, we appreciate your contribution and help to edit this page's documentation and source file on GitHub.
For details on the naming abbreviations, see this page.
For details on the naming conventions, see this page.
This software is distributed under the MIT license with additional terms outlined below.
-
If you use any parts or concepts from this library to any extent, please acknowledge the usage by citing the relevant publications of the ParaMonte library.
-
If you regenerate any parts/ideas from this library in a programming environment other than those currently supported by this ParaMonte library (i.e., other than C, C++, Fortran, MATLAB, Python, R), please also ask the end users to cite this original ParaMonte library.
This software is available to the public under a highly permissive license.
Help us justify its continued development and maintenance by acknowledging its benefit to society, distributing it, and contributing to it.
- Copyright
- Computational Data Science Lab
- Author:
- Amir Shahmoradi, Tuesday March 7, 2017, 3:50 AM, Institute for Computational Engineering and Sciences (ICES), The University of Texas at Austin
Definition at line 1289 of file pm_io.F90.