support for %m format argument to printf?

Jeremy Elson
Fri Oct 29 09:54:00 GMT 2004


Gnu C allows you to specify "%m" in printf format strings; newlib
doesn't.  Is there any plan to add support?  If not, I can work on a

If you're not familiar with it -- Gnu C lets you substitute %m for
strerror(errno).  It's similar to using perror(), except that you can
construct more meaningful error messages, e.g.:

printf("couldn't open %s: %m", filename);

I'm porting software that extensively uses this idiom to newlib.


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