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Everything about Mkstemp

Thread-safe POSIX function for creating a temporary file

In computing, mkstemp is a POSIX function for creating a temporary file. It accepts an argument that determines the location of the temporary file, and the prefix of its generated filename. After mkstemp was added to the Single UNIX Specification, the function tmpnam was deprecated, because the latter carried the risk that a temporary file with the same name could be created by another thread or process within the time from when the caller obtains the temporary filename and attempts to create it. mkstemp does not suffer from this problem. Wikipedia →

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