operators-dec

This is one of two operators that can be either binary or unary. (The other is ++.) Please note the unary version has a special syntax. For more on overriding operators, see the section [Custom operators].

Unary

• Don't list a return type for the unary version of --. That's implied by the parameter's type.

• Required prototype:

  ~~~~
  :::text
  \operator\ --\ (\prefix\ | \postfix) \var\ \ref\ /TypeDescriptor/ /identifier/
  ~~~~

  • For more on what /TypeDescriptor/ can be, see Type descriptors.

• Related operators:

  • ++

• Overrides provided by built-in ASIL types:

  • Member of all number types (represented by "T")

    ~~~~
    :::text
    operator -- (\prefix\ | \postfix) var ref T assign
    ~~~~

  • Member of achar:

    ~~~~
    :::text
    operator -- (\prefix\ | \postfix) var ref achar chAssign
    ~~~~

  • Member of char

    ~~~~
    :::text
    operator -- (\prefix\ | \postfix) var ref char chAssign
    ~~~~

Binary

• Required prototype

  ~~~~
  :::text
  \operator\ --\ \var\ \ref\ /Param1TypeDescriptor/ /Param1Identifier/, \var\ /Param2TypeDescriptor/ /Param2Identifier/
  \returns\ /ReturnTypeDescriptor/
  ~~~~

  • For more on what /Param1TypeDescriptor/, /Param2TypeDescriptor/, and /ReturnTypeDescriptor/ can be; see Type descriptors.

• Related operators:

  • ++

• Overrides provided by built-in ASIL types:

  • Member of all number types (represented by "T")

    ~~~~
    :::text
    operator -- var ref T assign, var T delta
    returns T
    ~~~~