[cfe-commits] [Patch] -Wformat: better handling of qualifiers on pointer arguments

[Hans Wennborg]

Hi all,

The attached patch makes Clang warn about passing in pointers to
const-qualified types to scanf, such as passing in "const int*" for a
"%d" format string.

It also ignores the volatile-qualifier, allowing to pass in a
"volatile int*" pointer for a "%n" format string.

Please take a look!

Thanks,
Hans
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