relax RangeHalf copy constructor a little (allow convertible range types)

2015-06-25 01:07:11 +01:00 · 2015-06-25 01:07:11 +01:00 · ddb18b9d0d
parent dbb266b5bd
commit ddb18b9d0d
1 changed files with 6 additions and 1 deletions
--- a/octa/range.h
+++ b/octa/range.h
@ -247,8 +247,13 @@ public:
    using Range = T;

    RangeHalf(): p_range() {}
+
    RangeHalf(const T &range): p_range(range) {}
-    RangeHalf(const RangeHalf &half): p_range(half.p_range) {}
+
+    template<typename U> RangeHalf(const RangeHalf<U> &half,
+        octa::EnableIf<octa::IsConvertible<U, T>::value, bool> = true
+    ): p_range(half.p_range) {}
+
    RangeHalf(RangeHalf &&half): p_range(octa::move(half.p_range)) {}

    RangeHalf &operator=(const RangeHalf &half) {