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Module std.range.interfaces

This module is a submodule of std.range.

The main std.range module provides template-based tools for working with ranges, but sometimes an object-based interface for ranges is needed, such as when runtime polymorphism is required. For this purpose, this submodule provides a number of object and interface definitions that can be used to wrap around range objects created by the std.range templates.

InputRange Wrapper for input ranges.
InputAssignable Wrapper for input ranges with assignable elements.
ForwardRange Wrapper for forward ranges.
ForwardAssignable Wrapper for forward ranges with assignable elements.
BidirectionalRange Wrapper for bidirectional ranges.
BidirectionalAssignable Wrapper for bidirectional ranges with assignable elements.
RandomAccessFinite Wrapper for finite random-access ranges.
RandomAccessAssignable Wrapper for finite random-access ranges with assignable elements.
RandomAccessInfinite Wrapper for infinite random-access ranges.
OutputRange Wrapper for output ranges.
OutputRangeObject Class that implements the OutputRange interface and wraps the put methods in virtual functions.
outputRangeObject Convenience function for creating an OutputRangeObject with a base range of type R that accepts types E.
InputRangeObject Class that implements the InputRange interface and wraps the input range methods in virtual functions.
inputRangeObject Convenience function for creating an InputRangeObject of the proper type.
MostDerivedInputRange Returns the interface type that best matches the range.


inputRangeObject(range) Convenience function for creating an InputRangeObject of the proper type. See InputRange for an example.


BidirectionalAssignable Adds assignable elements to BidirectionalRange.
BidirectionalRange Interface for a bidirectional range of type E.
ForwardAssignable Adds assignable elements to ForwardRange.
ForwardRange Interface for a forward range of type E.
InputAssignable Adds assignable elements to InputRange.
InputRange These interfaces are intended to provide virtual function-based wrappers around input ranges with element type E. This is useful where a well-defined binary interface is required, such as when a DLL function or virtual function needs to accept a generic range as a parameter. Note that isInputRange and friends check for conformance to structural interfaces not for implementation of these interface types.
OutputRange Interface for an output range of type E. Usage is similar to the InputRange interface and descendants.
RandomAccessFinite Interface for a finite random access range of type E.
RandomAccessInfinite Interface for an infinite random access range of type E.
RandomFiniteAssignable Adds assignable elements to RandomAccessFinite.


OutputRangeObject Implements the OutputRange interface for all types E and wraps the put method for each type E in a virtual function.


outputRangeObject Convenience function for creating an OutputRangeObject with a base range of type R that accepts types E.


InputRangeObject R Implements the most derived interface that R works with and wraps all relevant range primitives in virtual functions. If R is already derived from the InputRange interface, aliases itself away.
MostDerivedInputRange RandomAccessInfinite!E Returns the interface type that best matches R.


Andrei Alexandrescu, David Simcha, and Jonathan M Davis. Credit for some of the ideas in building this module goes to Leonardo Maffi.


Boost License 1.0.