In my class I have FILE* ascii_file; data member, which always is initialized via class constructor. How can I get full path of the asci_file? I don't want to store more information about the file expect ascii_file, and want it to work on windows, linux and solaris.
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Mihran Hovsepyan
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Any reason that you can't add a filename param to the ctor? – Ivo Wetzel Nov 29 '10 at 15:55
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2possible duplicate of [Getting Filename from file descriptor in C](http://stackoverflow.com/questions/1188757/getting-filename-from-file-descriptor-in-c) – Svisstack Nov 29 '10 at 15:59
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2Same as this question? http://stackoverflow.com/questions/831004/determining-the-opened-filename-from-a-file – Matt K Nov 29 '10 at 16:00
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1@Svisstack/@Matt Kane - this is not a dup, each q has only Linux-specific responses – Steve Townsend Nov 29 '10 at 16:01
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Here is a solution for Linux:
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This task is going to require non-portable code.
On Windows you can convert FILE* to CRT file descriptor using _fileno, and then convert to an OS handle using _get_osfhandle.
Then you can get the filename as shown here (using file mapping).
Obtaining a File Name From a File Handle
Steve Townsend
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