stapl::select_parameter< Passed, Default > Struct Template Reference

Type metafunction used by class templates with default template parameters that might be lengthy in type / name. Shortens symbol names for better debug output and compile times. More...

Public Types
using	type = Passed

Detailed Description

template<typename Passed, typename Default>
struct stapl::select_parameter< Passed, Default >

Type metafunction used by class templates with default template parameters that might be lengthy in type / name. Shortens symbol names for better debug output and compile times.

Template Parameters

Passed	parameter passed to the user's class template
Default	the type which should be used if Passed is use_default

usage: template<typename T, typename Q = use_default) class foo { // use int as default type typedef typename select_parameter<Q, really_long_type>::type Q_t; ... };

foo<float> // Q_t = really_long_type foo<<float, int> // Q_t = int

primary template reflects Passed (Default != use_default).

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The documentation for this struct was generated from the following file:

• use_default.hpp