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Do not include container_hash if possible

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The `boost/container_hash/hash.hpp` has significant inclusion times.
Not including it results in 30% faster `boost/type_traits.hpp` parsing.
(kind of regression introduced in 82ed016577)
This commit is contained in:
Nikita Kniazev
2018-10-20 18:21:08 +03:00
parent 09f0bc23c5
commit 01944bf377
1 changed files with 10 additions and 4 deletions
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14
include/boost/type_index/stl_type_index.hpp
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@ -39,7 +39,13 @@
#include <boost/type_traits/remove_cv.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/container_hash/hash.hpp>
#if (defined(_MSC_VER) && _MSC_VER > 1600) \
|| (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ > 5 && defined(__GXX_EXPERIMENTAL_CXX0X__)) \
|| (defined(__GNUC__) && __GNUC__ > 4 && __cplusplus >= 201103)
# define BOOST_TYPE_INDEX_STD_TYPE_INDEX_HAS_HASH_CODE
#else
# include <boost/container_hash/hash.hpp>
#endif
#if (defined(__EDG_VERSION__) && __EDG_VERSION__ < 245) \
|| (defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 744)
@ -175,9 +181,7 @@ inline std::string stl_type_index::pretty_name() const {
inline std::size_t stl_type_index::hash_code() const BOOST_NOEXCEPT {
#if (defined(_MSC_VER) && _MSC_VER > 1600) \
|| (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ > 5 && defined(__GXX_EXPERIMENTAL_CXX0X__)) \
|| (defined(__GNUC__) && __GNUC__ > 4 && __cplusplus >= 201103)
#ifdef BOOST_TYPE_INDEX_STD_TYPE_INDEX_HAS_HASH_CODE
return data_->hash_code();
#else
return boost::hash_range(raw_name(), raw_name() + std::strlen(raw_name()));
@ -272,4 +276,6 @@ inline stl_type_index stl_type_index::type_id_runtime(const T& value) BOOST_NOEX
}} // namespace boost::typeindex
#undef BOOST_TYPE_INDEX_STD_TYPE_INDEX_HAS_HASH_CODE
#endif // BOOST_TYPE_INDEX_STL_TYPE_INDEX_HPP