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Use BOOST_STATIC_CONSTANT in static_log2, as g++ 4.0 has problems with enum.

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[SVN r54811]
This commit is contained in:
Daniel James
2009-07-08 21:27:05 +00:00
parent 3706ee7bd9
commit edd638ec91
1 changed files with 2 additions and 2 deletions
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4
include/boost/integer/static_log2.hpp
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@ -48,7 +48,7 @@ namespace boost {
template <result_type n>
struct choose_initial_n {
enum { c = (argument_type(1) << n << n) != 0 };
BOOST_STATIC_CONSTANT(bool, c = (argument_type(1) << n << n) != 0);
BOOST_STATIC_CONSTANT(
result_type,
value = !c*n + choose_initial_n<2*c*n>::value
@ -85,7 +85,7 @@ namespace boost {
template <argument_type x, result_type n = initial_n>
struct static_log2_impl {
enum { c = (x >> n) > 0 }; // x >= 2**n ?
BOOST_STATIC_CONSTANT(bool, c = (x >> n) > 0); // x >= 2**n ?
BOOST_STATIC_CONSTANT(
result_type,
value = c*n + (static_log2_impl< (x>>c*n), n/2 >::value)