[Boost-bugs] [Boost C++ Libraries] #6854: boost/random/detail/integer_log2.hpp:71:35: warning: always_inline function might not be inlinable

Subject: [Boost-bugs] [Boost C++ Libraries] #6854: boost/random/detail/integer_log2.hpp:71:35: warning: always_inline function might not be inlinable
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-05-01 23:28:13

#6854: boost/random/detail/integer_log2.hpp:71:35: warning: always_inline function
might not be inlinable
-------------------------------+--------------------------------------------
 Reporter:  peter@…            |       Owner:  no-maintainer
     Type:  Bugs               |      Status:  new          
Milestone:  To Be Determined   |   Component:  random       
  Version:  Boost 1.49.0       |    Severity:  Cosmetic     
 Keywords:                     |  
-------------------------------+--------------------------------------------
 When compiled with GCC 4.7.0, boost/random/detail/integer_log2.hpp
 triggers a warning:

 {{{
 #include <boost/random/mersenne_twister.hpp>

 int main() { return 0; }
 }}}

 {{{
 In file included from
 boost_1_49_0/include/boost/random/detail/large_arithmetic.hpp:19:0,
                  from
 boost_1_49_0/include/boost/random/detail/const_mod.hpp:23,
                  from
 boost_1_49_0/include/boost/random/detail/seed_impl.hpp:27,
                  from
 boost_1_49_0/include/boost/random/mersenne_twister.hpp:29,
                  from /tmp/always_inline.cpp:1:
 boost_1_49_0/include/boost/random/detail/integer_log2.hpp:71:35: warning:
 always_inline function might not be inlinable [-Wattributes]
 }}}

 This warning is due to the missing inline keyword:

 {{{
 --- boost_1_49_0.orig/boost/random/detail/integer_log2.hpp
 +++ boost_1_49_0/boost/random/detail/integer_log2.hpp
 @@ -27,7 +27,7 @@
  #elif defined(BOOST_MSVC)
  #define BOOST_RANDOM_DETAIL_CONSTEXPR __forceinline
  #elif defined(__GNUC__) && __GNUC__ >= 4
 -#define BOOST_RANDOM_DETAIL_CONSTEXPR __attribute__((const))
 __attribute__((always_inline))
 +#define BOOST_RANDOM_DETAIL_CONSTEXPR inline __attribute__((const))
 __attribute__((always_inline))
  #else
  #define BOOST_RANDOM_DETAIL_CONSTEXPR inline
  #endif
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6854>
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