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Diffstat (limited to 'include/mbgl/style/expression/expression.hpp')
-rw-r--r-- | include/mbgl/style/expression/expression.hpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/mbgl/style/expression/expression.hpp b/include/mbgl/style/expression/expression.hpp index 1954d8b090..a22fc28724 100644 --- a/include/mbgl/style/expression/expression.hpp +++ b/include/mbgl/style/expression/expression.hpp @@ -44,6 +44,8 @@ public: using variant<EvaluationError, T>::variant; using Value = T; + Result() = default; + explicit operator bool () const { return this->template is<T>(); } @@ -80,6 +82,8 @@ class EvaluationResult : public Result<Value> { public: using Result::Result; // NOLINT + EvaluationResult() = default; + EvaluationResult(const std::array<double, 4>& arr) : Result(toExpressionValue(arr)) {} |