[Issue 24315] dmd/cpreprocess.d:87: warning: the use of `tmpnam' is dangerous, better use `mkstemp'

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24315

--- Comment #5 from Walter Bright <bugzilla at digitalmars.com> ---
It returns a file descriptor for an already opened file.

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