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V1062. Class defines a custom new or de…
Analyzer diagnostics
Additional information
Contents

V1062. Class defines a custom new or delete operator. The opposite operator must also be defined.

Jul 24 2020

This diagnostic rule is based on the R.15 CppCoreGuidelines rule.

A class defines a custom 'new' or 'delete' operator but does not define the opposite operator.

Example:

class SomeClass
{
  ....
  void* operator new(size_t s);
  ....
};

Objects of this class will be dynamically allocated using the overloaded 'new' operator and deleted using the default 'delete' operator.

For symmetry of allocation/deallocation operations, define the 'delete' operator as well:

class SomeClass
{
  ....
  void* operator new(size_t s);
  void operator delete(void*);
  ....
};

You can also mark operators as deleted ('= delete') if for some reason you need to prevent allocation or deallocation of objects of this class.

The following example prevents objects from getting deallocated:

class SomeClass
{
  ....
  void* operator new(size_t s);
  void operator delete(void*) = delete;
  ....
};

You can look at examples of errors detected by the V1062 diagnostic.

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