LANG.FUNCS.MCWCS : Move Constructor With Copy Semantics

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C and C++

LANG.FUNCS.MCWCS : Move Constructor With Copy Semantics

Summary

A move constructor uses copy-initialization for a base class or non-scalar data member.

Properties

Class Name

Move Constructor With Copy Semantics

Significance

style

Mnemonic

LANG.FUNCS.MCWCS

Categories

AUTOSARC++14	AUTOSARC++14:A12-8-4	Move constructor shall not initialize its class members and base classes using copy semantics.

Availability

Available for C++ only (not C).

Enabling

Checks for this warning class are disabled by default, and require the unnormalized C ASTs for the project. To enable them, add the following WARNING_FILTER rule and RETAIN_UNNORMALIZED_C_AST specification to the project configuration file.

RETAIN_UNNORMALIZED_C_AST = Yes
WARNING_FILTER += allow class="Move Constructor With Copy Semantics"

Note that retaining the unnormalized ASTs will increase the disk space used to store the project representation, and may make the analysis take longer.

Example

#include <string>

class Base {};

class MCWCS : public Base {                          // ('Missing User-defined Operations' warning issued here
                                                     //   - has user-defined move constructor but not other Rule of Five operations)
  private:
    std::string label;
    int x;
    std::string name;
  public:
    MCWCS(MCWCS && other) :
        Base(other),                // 'Move Constructor with Copy Semantics' warning issued here
        label(other.label),         // 'Move Constructor with Copy Semantics' warning issued here
        x(other.x),                                  // x has scalar type so initialization can use copy semantics
        name(std::move(other.name))                  // uses move semantics
    {}
};

Relevant Configuration File Parameters

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

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