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Added variadic support

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Improves `boost/function.hpp` inclusion by 20%.
This commit is contained in:
Nikita Kniazev
2018-10-18 21:44:22 +03:00
committed by James E. King III
parent 5f93559650
commit f22fa49e07
4 changed files with 99 additions and 4 deletions
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16
include/boost/function/function_fwd.hpp
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@ -24,6 +24,12 @@ namespace boost { namespace python { namespace objects {
# define BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX
#endif
#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
# define BOOST_FUNCTION_NO_VARIADIC
#else
# include <boost/preprocessor/repetition/repeat.hpp> // for functionN aliases generation below
#endif
namespace boost {
class bad_function_call;
@ -38,6 +44,15 @@ namespace boost {
}
#endif // have partial specialization
#ifndef BOOST_FUNCTION_NO_VARIADIC
template<typename R, typename... T> class function_n;
# define BOOST_FUNCTION_N_ALIASES(z, N, d) \
template <typename R, typename... T> \
using function##N = function_n<R, T...>;
BOOST_PP_REPEAT(51, BOOST_FUNCTION_N_ALIASES, ~)
# undef BOOST_FUNCTION_N_ALIASES
#else
// Portable syntax
template<typename R> class function0;
template<typename R, typename T1> class function1;
@ -64,6 +79,7 @@ namespace boost {
typename T5, typename T6, typename T7, typename T8, typename T9,
typename T10>
class function10;
#endif
}
#endif