Type of an argument for a proportional splitting constructor of Range.
#include "tbb/tbb_stddef.h"
class proportional_split;
An argument of type proportional_split may be used by classes that implement Range concept to distinguish a proportional splitting constructor from a basic splitting constructor and from a copy constructor, and to suggest a ratio in which a particular instance of the class should be split.
namespace tbb { class proportional_split { public: proportional_split(size_t _left = 1, size_t _right = 1); size_t left() const; size_t right() const; operator split() const; }; }
Member | Description |
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proportional_split( size_t _left = 1, size_t _right = 1 ) |
Constructs a proportion with the ratio specified by coefficients _left and _right. |
size_t left() const |
Returns size of the left part of the proportion. |
size_t right() const |
Returns size of the right part of the proportion. |
operator split() const |
Makes proportional_split implicitly convertible to split type to use with ranges that do not support proportional splitting. |
See "Range Concept" for an example of proportional splitting constructor implementation.