Include boost/config.hpp in construct.hpp

Merge pull request #25 from RaisinTen/use-forward-in-construct.hpp
Use variadic templates to get rid of manual overloads in construct.hpp
2026-01-21 04:52:25 +00:00 · 2021-12-28 01:06:03 +02:00 · 2021-12-28 01:02:21 +02:00 · 2021-12-27 12:01:24 +05:30 · 2021-12-27 00:14:01 +02:00 · 2021-12-26 19:08:13 +02:00
2 changed files with 21 additions and 1 deletions
--- a/include/boost/lambda/construct.hpp
+++ b/include/boost/lambda/construct.hpp
@@ -16,6 +16,11 @@

 #include "boost/type_traits/remove_cv.hpp"
 #include "boost/type_traits/is_pointer.hpp"
+#include "boost/config.hpp"
+
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+#include <utility>
+#endif

 namespace boost { 
 namespace lambda {
@@ -28,6 +33,12 @@ template<class T> struct constructor {

  template <class U> struct sig { typedef T type; };

+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+  template <class... Args>
+  T operator()(Args&&... args) const {
+    return T(std::forward<Args>(args)...);
+  }
+#else
  T operator()() const {
    return T();
  }
@@ -81,6 +92,7 @@ template<class T> struct constructor {
  T operator()(A1& a1, A2& a2, A3& a3, A4& a4, A5& a5, A6& a6, A7& a7, A8& a8, A9& a9, A10& a10) const {
    return T(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
  }
+#endif

 };

@@ -137,6 +149,12 @@ template<class T> struct new_ptr {

  template <class U> struct sig { typedef T* type; };  

+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+  template <class... Args>
+  T* operator()(Args&&... args) const {
+    return new T(std::forward<Args>(args)...);
+  }
+#else
  T* operator()() const {
    return new T();
  }
@@ -190,6 +208,7 @@ template<class T> struct new_ptr {
  T* operator()(A1& a1, A2& a2, A3& a3, A4& a4, A5& a5, A6& a6, A7& a7, A8& a8, A9& a9, A10& a10) const {
    return new T(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
  }
+#endif

 };

--- a/meta/libraries.json
+++ b/meta/libraries.json
@@ -11,5 +11,6 @@
    ],
    "maintainers": [
        "Jaakko Jarvi <jarvi -at- cs.tamu.edu>"
-    ]
+    ],
+    "cxxstd": "03"
 }
Author	SHA1	Message	Date
Peter Dimov	ac26514243	Include boost/config.hpp in construct.hpp	2021-12-28 01:06:03 +02:00
Peter Dimov	6b124b66f7	Merge pull request #25 from RaisinTen/use-forward-in-construct.hpp Use variadic templates to get rid of manual overloads in construct.hpp	2021-12-28 01:02:21 +02:00
Darshan Sen	568a4d2a63	Use variadic templates to get rid of manual overloads in construct.hpp There is no need to write the overloads manually and limiting our users to a max of 10 arguments when we can forward universal references to the constructors. Signed-off-by: Darshan Sen <darshan.sen@postman.com>	2021-12-27 12:01:24 +05:30
Peter Dimov	40b6f20419	Merge branch 'feature/issue-24' into develop	2021-12-27 00:14:01 +02:00
Peter Dimov	cedabad897	Merge pull request #22 from eldiener/develop [skip ci] Add "cxxstd" json field	2021-12-26 19:08:13 +02:00
Edward Diener	b90488068a	[skip ci] Add "cxxstd" json field. The "cxxstd" json field is being added to each Boost library's meta json information for libraries in order to specify the minumum C++ standard compilation level. The value of this field matches one of the values for 'cxxstd' in Boost.Build. The purpose of doing this is to provide information for the Boost website documentation for each library which will specify the minimum C++ standard compilation that an end-user must employ in order to use the particular library. This will aid end-users who want to know if they can successfully use a Boost library based on their C++ compiler's compilation level, without having to search the library's documentation to find this out.	2021-01-20 13:08:07 -05:00