Add "typedef T value_type;" to llvm::Optional<T>.

Inspired by std::experimental::optional from the "Library Fundamentals" C++ TS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218617 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jordan Rose 2014-09-29 18:56:05 +00:00
parent 78beaa5d02
commit ede14e3e21

View File

@ -29,6 +29,8 @@ class Optional {
AlignedCharArrayUnion<T> storage;
bool hasVal;
public:
typedef T value_type;
Optional(NoneType) : hasVal(false) {}
explicit Optional() : hasVal(false) {}
Optional(const T &y) : hasVal(true) {