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int to string?


I am in the process of writing a program that will store some data
in a temporary file.  I want the temp file to be /tmp/prog_name.pid

I get the process id from getpid().  The pid is an int.  How do I convert
this int into a string (char *), so that I can cat all of it together to
come up with the path that I can pass to fopen()?

"If there were any justice, my face would be on a bunch of crappy
                 merchandise" -- Homer J. Simpson