diff options
| -rw-r--r-- | butl/optional | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/butl/optional b/butl/optional index 00c204a..86bbe59 100644 --- a/butl/optional +++ b/butl/optional @@ -5,6 +5,8 @@ #ifndef BUTL_OPTIONAL #define BUTL_OPTIONAL +#include <utility> // move() + namespace butl { // Simple optional class template while waiting for std::optional. @@ -21,9 +23,11 @@ namespace butl optional (): null_ (true) {} optional (nullopt_t): null_ (true) {} optional (const T& v): value_ (v), null_ (false) {} + optional (T&& v): value_ (std::move (v)), null_ (false) {} optional& operator= (nullopt_t) {value_ = T (); null_ = true; return *this;} optional& operator= (const T& v) {value_ = v; null_ = false; return *this;} + optional& operator= (T&& v) {value_ = std::move (v); null_ = false; return *this;} T& value () {return value_;} const T& value () const {return value_;} |