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-rw-r--r--base/template_util.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/base/template_util.h b/base/template_util.h
index 30572f1..f4bf746 100644
--- a/base/template_util.h
+++ b/base/template_util.h
@@ -28,6 +28,39 @@ typedef integral_constant<bool, false> false_type;
template <class T> struct is_pointer : false_type {};
template <class T> struct is_pointer<T*> : true_type {};
+// Member function pointer detection up to four params. Add more as needed
+// below. This is built-in to C++ 11, and we can remove this when we switch.
+template<typename T>
+struct is_member_function_pointer : false_type {};
+
+template <typename R, typename Z>
+struct is_member_function_pointer<R(Z::*)()> : true_type {};
+template <typename R, typename Z>
+struct is_member_function_pointer<R(Z::*)() const> : true_type {};
+
+template <typename R, typename Z, typename A>
+struct is_member_function_pointer<R(Z::*)(A)> : true_type {};
+template <typename R, typename Z, typename A>
+struct is_member_function_pointer<R(Z::*)(A) const> : true_type {};
+
+template <typename R, typename Z, typename A, typename B>
+struct is_member_function_pointer<R(Z::*)(A, B)> : true_type {};
+template <typename R, typename Z, typename A, typename B>
+struct is_member_function_pointer<R(Z::*)(A, B) const> : true_type {};
+
+template <typename R, typename Z, typename A, typename B, typename C>
+struct is_member_function_pointer<R(Z::*)(A, B, C)> : true_type {};
+template <typename R, typename Z, typename A, typename B, typename C>
+struct is_member_function_pointer<R(Z::*)(A, B, C) const> : true_type {};
+
+template <typename R, typename Z, typename A, typename B, typename C,
+ typename D>
+struct is_member_function_pointer<R(Z::*)(A, B, C, D)> : true_type {};
+template <typename R, typename Z, typename A, typename B, typename C,
+ typename D>
+struct is_member_function_pointer<R(Z::*)(A, B, C, D) const> : true_type {};
+
+
template <class T, class U> struct is_same : public false_type {};
template <class T> struct is_same<T,T> : true_type {};