[Boost-users] supressing "extra ;" warnings with GCC 3.4

From: Dave Steffen (dgsteffen_at_[hidden])
Date: 2005-06-29 09:57:51

Hi folks,

Tried to compile our code with GCC 3.4 last night; our default is to
always keep the warning levels turned all the way up.

I'm getting many errors of the "extra `;'" type, as the result of
various preprocessor metaprogramming constructs.

Specifically, if a macro expands to a function definition (silly example):

#define FOO(T)  \
inline T FOO(T i) { ... } 

FOO(int);
FOO(double);

The semicolons after the macro invocations give GCC 3.4 fits; but
without the semicolons, it looks strange, editors can't indent, etc.

Is anyone aware of a way to silence the "extra ;" errors?  (I've
looked through their docs, can't find anything; I suspect other Boost
users have run across this.)  Is there something I'm missing in the
preprocessor library that handles this sort of thing?

Any help appreciated!  Thanks!

----------------------------------------------------------------------
Dave Steffen, Ph.D.       "There are two ways to write error-free
Software Engineer IV       programs; only the third one works."
Numerica Corporation            
ph [phone] x27     "Pie are not square. Pie are round. 
fax [phone]         Cornbread are square"
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