Miha Valencic wrote in a message to Erik Huelsmann:

 EH> Is there anyone out there who has a routine to generate
 EH> completely unique filenames??

 MV> There is a builtin function to create a unique filename... 
 MV> (actually, there are two in C Set) tmpnam & _tempnam. 

The tmpnam() function is ANSI.

 MV> I think tmpname functions are limited to 25 files or so... I'm 
 MV> not sure though.

ANSI defines TMP_MAX as the minimum number of unique names guaranteed to be
emitted by the tmpnam() function, and L_tmpnam as the length of a buffer
which is guaranteed to be large enough to hold each name emitted by
tmpnam().

TMP_MAX is defined as 32767 in Microsoft C, as 65535 in Borland C, and as
17576 (26*26*26) in Watcom C.
 
-- Mike


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