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Add explicit virtual dtor

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Add explicit virtual dtor to GraphBuilderInterface. This avoids tripping
a -Wnon-virtual-dtor warning, and also ensures that the correct
(virtual) dtor is called if an instance is deleted via a pointer to the
base type.
This commit is contained in:
Matthew Woehlke
2017-11-09 14:18:30 -05:00
committed by Jesse Beder
parent dc9c750efd
commit 58687ee7c4
1 changed files with 2 additions and 0 deletions
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2
include/yaml-cpp/contrib/graphbuilder.h
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@@ -19,6 +19,8 @@ class Parser;
// functions. // functions.
class GraphBuilderInterface { class GraphBuilderInterface {
public: public:
virtual ~GraphBuilderInterface() = 0;
// Create and return a new node with a null value. // Create and return a new node with a null value.
virtual void *NewNull(const Mark &mark, void *pParentNode) = 0; virtual void *NewNull(const Mark &mark, void *pParentNode) = 0;