std.array: Allow joining constant arrays

dlang · Jan 16, 2014 · ce7d4ed · ce7d4ed
1 parent d81d540
commit ce7d4ed
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/std/array.d b/std/array.d
@@ -1525,7 +1525,7 @@ unittest
   +/
 ElementEncodingType!(ElementType!RoR)[] join(RoR, R)(RoR ror, R sep)
     if(isInputRange!RoR &&
-       isInputRange!(ElementType!RoR) &&
+       isInputRange!(Unqual!(ElementType!RoR)) &&
        isInputRange!R &&
        is(Unqual!(ElementType!(ElementType!RoR)) == Unqual!(ElementType!R)))
 {
@@ -1572,7 +1572,7 @@ ElementEncodingType!(ElementType!RoR)[] join(RoR, R)(RoR ror, R sep)
 /// Ditto
 ElementEncodingType!(ElementType!RoR)[] join(RoR)(RoR ror)
     if(isInputRange!RoR &&
-       isInputRange!(ElementType!RoR))
+       isInputRange!(Unqual!(ElementType!RoR)))
 {
     alias typeof(return) RetType;
 
@@ -1601,6 +1601,10 @@ ElementEncodingType!(ElementType!RoR)[] join(RoR)(RoR ror)
 
     assert(join([[1, 2, 3], [4, 5]], [72, 73]) == [1, 2, 3, 72, 73, 4, 5]);
     assert(join([[1, 2, 3], [4, 5]]) == [1, 2, 3, 4, 5]);
+
+    const string[] arr = ["apple", "banana"];
+    assert(arr.join(",") == "apple,banana");
+    assert(arr.join() == "applebanana");
 }
 
 unittest