raster_iterator

Summary

An iterator for a raster object.

Refinement of

A C++ iterator (since C++20) is also a raster_iterator if it iterates over the elements of a raster row-by-row, and within each row column-by-column.

Associated types

Notation

Definitions

Valid expressions

Expression semantics

The iterator iterates over the elements of the raster row-by-row and within each row column-by-columns. Otherwise the valid expressions and semantics follow those of the type of iterator it models.

Complexity guarantees

Invariants

Models

Notes

The reason that araster_iterator is an additional requirement to iterator concepts introduced in C++20 is that most iterator concepts pre-C++20 requirereference type to be equal to value_type& (with very limited exceptions).