-Cn: Disable compactC++ features

LANGUAGE

Compilation Unit

  -Cn [= {Vf|Tpl|Ptm|Mih|Ctr|Cpr}]
  
  

Vf: Do not allow virtual functions

Tpl: Do not allow templates

Ptm: Do not allow pointer to member

Mih: Do not allow multiple inheritance and virtual base classes

Ctr: Do not create compiler defined functions

Cpr: Do not allow class parameters and class returns

None

None

None

If the -C++c option is enabled, you can disable the following compactC++ features:

• Vf : Virtual functions are not allowed.

  Avoid having virtual tables that consume a lot of memory.

• Tpl : Templates are not allowed.

  Avoid having many generated functions perform similar operations.

• Ptm : Pointer to member not allowed.

  Avoid having pointer-to-member objects that consume a lot of memory.

• Mih : Multiple inheritance is not allowed.

  Avoid having complex class hierarchies. Because virtual base classes are logical only when used with multiple inheritance, they are also not allowed.

• Ctr : The C++ Compiler can generate several kinds of functions, if necessary:
  • Default Constructor
  • Copy Constructor
  • Destructor
  • Assignment operator

    With this option enabled, the Compiler does not create those functions. This is useful when compiling C sources with the C++ Compiler, assuming you do not want C structures to acquire member functions.

• Cpr : Class parameters and class returns are not allowed.

  Avoid overhead with Copy Constructor and Destructor calls when passing parameters, and passing return values of class type.

  -C++c -Cn=Ctr