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isOutputFile(File) -- whether a file is open for output

Function: isOutputFile
Usage:

isOutputFile f
Inputs:
- f, a file
Outputs:
- a Boolean value, whether f is an open output file

Description

i1 : f = "test-file" << "hi there"

o1 = test-file

o1 : File

i2 : isOutputFile f

o2 = true

i3 : close f

o3 = test-file

o3 : File

i4 : isOutputFile f

o4 = false

i5 : get "test-file"

o5 = hi there

i6 : removeFile "test-file"

See also

openOut -- open an output file
openInOut -- open an input output file
close -- close a file
get -- get the contents of a file
removeFile -- remove a file

Ways to use this method:

isOutputFile(File) -- whether a file is open for output

The source of this document is in Macaulay2Doc/ov_system.m2:589:0.