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Blaze 3.9
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Base template for the ColumnTrait class. More...
#include <ColumnTrait.h>
Inherits decltype evalColumnTrait std::declval< MT & >.
Base template for the ColumnTrait class.
The ColumnTrait class template offers the possibility to select the resulting data type when creating a view on a specific column of a dense or sparse matrix. In case the given type MT is a dense or sparse matrix type, ColumnTrait defines the nested type Type, which represents the resulting data type of the column operation. Otherwise there is no nested type Type. Note that const and volatile qualifiers and reference modifiers are generally ignored.
Per default, ColumnTrait supports all matrix types of the Blaze library (including views and adaptors). For all other data types it is possible to specialize the ColumnTrait template. The following example shows the according specialization for the DynamicMatrix class template:
The following example demonstrates the use of the ColumnTrait template, where depending on the given matrix type the resulting column type is selected: