[Octave-bug-tracker] [bug #43844] tmpnam() always uses default directory for temporary files on Windows

[John Donoghue]

Follow-up Comment #1, bug #43844 (project octave):

octave uses the systems tempnam function which says it uses the dir if
environment variable TMP is not set.

On my windows machine:

>> pwd
ans = C:\Users\john
>> getenv('TMP')
ans = C:\Users\john\AppData\Local\Temp
>> tempname(pwd())
ans = C:\Users\john\AppData\Local\Temp\oct-2
>> setenv('TMP','')
>> tempname(pwd())
ans = C:\Users\john\oct-3
>>

I tried on Matlab 2013, and it uses the input name, regardless of whether it
is a valid directory, character etc.

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