gmp::singleton< T, LongLifeTime > Class Template Reference

CRTP-based singleton helper with optional dead-reference recovery. More...

Detailed Description

template<typename T, bool LongLifeTime = false>
class gmp::singleton< T, LongLifeTime >

Derive a type T from singleton<T> to obtain a process-wide instance() accessor. The default specialization uses a function-local static object and provides the simplest singleton lifetime model. The LongLifeTime = true specialization keeps additional state so it can recreate the singleton after destruction if instance() is accessed again.

Template Parameters

T	The derived singleton type.
LongLifeTime	When false, use a function-local static instance. When true, enable dead-reference handling and recreation support.

Example

struct logger : gmp::singleton<logger> {
  GMP_DISABLE_CONSTRUCTION(logger)
};
 
auto& log = logger::instance();

Since

version 1.2.0

Definition at line 54 of file singleton.hpp.

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

• singleton.hpp