diff options
Diffstat (limited to 'build2/variable')
| -rw-r--r-- | build2/variable | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/build2/variable b/build2/variable index 48acfea..10a0f59 100644 --- a/build2/variable +++ b/build2/variable @@ -120,14 +120,16 @@ namespace build2 // // public: - ~value () {if (!null ()) *this = nullptr;} + ~value () {*this = nullptr;} explicit value (const value_type* t = nullptr) : type (t), state (value_state::null) {} + // Note: preserves type. + // value& - operator= (nullptr_t); + operator= (nullptr_t) {if (!null ()) reset (); return *this;} value (value&&); explicit value (const value&); @@ -185,6 +187,10 @@ namespace build2 // Make sure we have sufficient storage for untyped values. // static_assert (sizeof (names) <= size_, "insufficient space"); + + private: + void + reset (); }; // The values should be of the same type (or both be untyped). NULL values |