Subject: attributes on pointed-to functions?
To: None <>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
List: tech-toolchain
Date: 09/26/2002 11:42:34
Is there anyone here wizardly enough wth gcc to know how to attach
attributes to a function named only by a pointer?

void foo(struct something *arg, void (*fn)(const char *, ...))

I'd like the function pointed to by fn to be tagged with an attribute
(specifically, a format-string attribute, so -Wformat can check calls
to it).  But all my attempts have ended up attaching the attributes to
the `fn' argument formal itself, which is not a function and hence
can't take a format attribute.  extend.texi is silent on how to attach
attributes to functions that don't themselves have names, as far as I
can see....

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