cds::opt::select_default< Option, Default, Value > Struct Template Reference

Metafunction for selecting default option value. More...

#include <cds/opt/options.h>

Public Types
typedef Value	type
	metafunction result

Detailed Description

template<typename Option, typename Default, typename Value = Option>
struct cds::opt::select_default< Option, Default, Value >

Metafunction for selecting default option value.

Template parameters:

• Option - option value
• Default - default option value
• Value - option value if Option is not opt::none

If Option is opt::none, the metafunction result is Default, otherwise the result is Value.

Examples:

// default_spin is cds::sync::spin
typedef typename cds::opt::select_default< cds::opt::none, cds::sync::spin >::type  default_spin;

// spin_32bit is cds::sync::reentrant_spin32
typedef typename cds::opt::select_default< cds::opt::none, cds::sync::reentrant_spin32 >::type  spin_32bit;

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

• cds/opt/options.h