Page History

...

TR 24731-1 notes the following regarding the use of tmpfile_s() instead of }}{{{}tmpnam_s():

After a program obtains a file name using the tmpnam_s}}function and before the program creates a file with that name, the possibility exists that someone else may create a file with that same name. To avoid this race condition, the {{tmpfile_s function should be used instead of tmpnam_s when possible. One situation that requires the use of the tmpnam_s function is when the program needs to create a temporary directory rather than a temporary file.

...