id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6631	"BOOST_PP_ITERATION_FLAGS(): error: missing binary operator before token ""("""	peter@…	No-Maintainer	"With Boost 1.49.0 and GCC, use of BOOST_PP_ITERATION_FLAGS() results in a compiler error:

{{{
# g++ -I $HOME/usr/rhel6-x86_64/boost_1_49_0/include -I. -o file -O2 file.cpp
In file included from file.cpp:1:0:
file.h:19:1: error: missing binary operator before token ""(""
file.h:24:1: error: missing binary operator before token ""(""
}}}

As a reproducable test case, I compiled the example given in the Boost.Preprocessor documentation:

{{{
// file.h
#if !BOOST_PP_IS_ITERATING

   #ifndef FILE_H_
   #define FILE_H_

   #include <boost/preprocessor/iteration/iterate.hpp>

   // 1st iteration:
   #define BOOST_PP_ITERATION_PARAMS_1 (4, (1, 10, ""file.h"", 0x0001))
   #include BOOST_PP_ITERATE()

   // 2nd iteration:
   #define BOOST_PP_ITERATION_PARAMS_1 (4, (1, 10, ""file.h"", 0x0002))
   #include BOOST_PP_ITERATE()

   #endif

#elif BOOST_PP_ITERATION_DEPTH() == 1 \
   && BOOST_PP_ITERATION_FLAGS() == 0x0001 \
   /**/


#elif BOOST_PP_ITERATION_DEPTH() == 1 \
   && BOOST_PP_ITERATION_FLAGS() == 0x0002 \
   /**/


#endif
}}}

{{{
// file.cpp
#include ""file.h""
int main() {}
}}}

Both GCC 4.4 and GCC 4.6 fail to compile the example using Boost 1.49.0.

The above code compiles fine using Boost 1.48.0.

g++ (GCC) 4.4.6 20110731 (Red Hat 4.4.6-3)

g++ (GCC) 4.6.2 20110728 (prerelease)"	Bugs	closed	To Be Determined	preprocessor	Boost 1.49.0	Regression	fixed	BOOST_PP_ITERATION_FLAGS	blake-r@… smr@…