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Do you have an example of the prototype for the tmpnam() ?
Tor ILE C, the prototype is in stdio.h and ifs.h, and looks like this: char *tmpnam(char *);If you've told the compiler to use IFS for I/O, it runs the following #pragma to map it to a different function in a different service program.
#pragma map ( tmpnam, "_C_IFS_tmpnam")For ILE RPG, you have to write your own prototype. Instead of the #pragma, you use extproc().
midrange.com
For QTEMP:
D tmpnam PR * extproc('tmpnam')
D string 39A options(*omit)
For IFS:
D tmpnam PR * extproc('_C_IFS_tmpnam')
D string 39A options(*omit)
RPG programs also need BNDDIR('QC2LE') in their H-specs so that they'll be
able to find the function.
To call it from RPG, you do this:
D filename s 40A varying
filename = %str(tmpnam(*OMIT));
Or, from C:
char *filename;
filename = tmpnam(NULL);
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