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Adaptable Binary Function
DescriptionAn Adaptable Binary Function is a Binary Function with nested typedefs that define its argument types and result type. [1] [2] These nested typedefs make it possible to use function object adaptors.Refinement ofBinary FunctionAssociated types
Notation
DefinitionsValid expressionsNone, except for those defined by Binary FunctionExpression semanticsComplexity guaranteesInvariantsModelsNotes[1] Note the implication of this: a function pointer T (*f)(X,Y) is a Binary Function, but not an Adaptable Binary Function: the expressions f::first_argument_type, f::second_argument_type, and f::result_type are nonsensical. [2] When you define a class that is a model of Adaptable Binary Function, you must provide these typedefs. The easiest way to do this is to derive the class from the base class binary_function. This is an empty class, with no member functions or member variables; the only reason it exists is to make defining Adaptable Binary Functions more convenient. Binary_function is very similar to the base classes used by the iterator tag functions. See alsoBinary Function, Adaptable Generator, Adaptable Unary FunctionCopyright © 1999 Silicon Graphics, Inc. All Rights Reserved. TrademarkInformation
