PARSE.CWONBNOD : Class With operator new but No operator delete

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CodeSonar^® 9.2p0

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CodeSecure Inc

C and C++

PARSE.CWONBNOD : Class With operator new but No operator delete

Summary

One of the following occurs, and exceptions are disabled.

A class declares operator new() but does not declare operator delete().
A class declares operator new[]() but does not declare operator delete[]().

When exceptions are enabled, a No Corresponding Member delete warning is issued instead.

This warning class is derived from a C/C++ parser warning.

Properties

Class Name

Class With operator new but No operator delete

Significance

style

Mnemonic

PARSE.CWONBNOD

Categories

AUTOSARC++14	AUTOSARC++14:A18-5-11	"operator new" and "operator delete" shall be defined together.

Availability

Available for C++ only (not C).

Enabling

Checks for this warning class are enabled by default. However, warning instances of this class that are issued as parser errors (rather than parser warnings) will be discarded when using factory configuration settings. To prevent these instances from being discarded, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += allow class="Class With operator new but No operator delete"

To disable checks for this warning class, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += discard class="Class With operator new but No operator delete"

Example

#include <cstdlib>

// class declares both operator new and operator delete
class NewAndDelete {
  public:
    static void  * operator new(std::size_t s);
    static void operator delete(void * ptr);
};

// class declares operator new and operator new[] but not operator delete or operator delete[]
class NewAndNewarr {                           // Two 'Class With operator new but No operator delete' warnings issued here if exceptions are DISABLED
                                               // - one for declaration of operator new
                                               // - one bor declaration of operator new[]
  public:
    static void * operator new(std::size_t s);                    // ('No Corresponding Member delete' warning issued here if exceptions are ENABLED)
    static void * operator new[](std::size_t s);                  // ('No Corresponding Member delete' warning issued here if exceptions are ENABLED)
};

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

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