CODEWITHSUNDEEP
cgccwarningsprintf
claf
claf

Reputation: 9263

How to avoid printf warnings about types

I'm wondering if there is a nice way to avoid gcc to scream about printf types : 'warning: format ‘%d’ expects argument of type ‘int’, but argument 12 has type foo'

This is pretty anoying when you know that you wrote 'typedef int foo' somewhere ...

Of course, I'm not looking for the gcc fix for that ( [-Wformat] ).

I would like to know if there is a way to avoid the warning WITHOUT casting each time of course!

Upvotes: 1

Views: 903

Answers (2)

pmg
pmg

Reputation: 108978

This has Undefined Behaviour all over. Do not use!

char *fmt;
fmt = "%d%f%p%u\n";
printf(fmt, 1, 1, 1, 1, 1, 1, 1, 1, 1); /* fill stack with values */

Upvotes: 0

cnicutar
cnicutar

Reputation: 182639

If you have typedef int foo, gcc shouldn't warn you. If gcc is warning you, there's a fair chance foo really isn't an integer.

Upvotes: 8

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