default_init_allocator< T, A > Class Template Reference

allocator which leaves newly constructed fields "default initialized". More...

#include <default_init_allocator.h>

Inheritance diagram for default_init_allocator< T, A >:

Classes
struct	rebind

Public Member Functions
template<class U >
void	construct (U *ptr) noexcept(std::is_nothrow_default_constructible< U >::value)
template<class U , class... Args>
void	construct (U *ptr, Args &&... args)

Private Types
using	a_t = std::allocator_traits< A >

Detailed Description

template<class T, class A = std::allocator<T>>
class default_init_allocator< T, A >

allocator which leaves newly constructed fields "default initialized".

in case of std::vector<int> after a resize() the newly added fields would be uninitialized.

useful in case of network-buffers it will be read() into right afterwards.

Member Typedef Documentation

a_t

template<class T , class A = std::allocator<T>>

using default_init_allocator< T, A >::a_t = std::allocator_traits<A>

private

Member Function Documentation

construct() [1/2]

template<class T , class A = std::allocator<T>>

template<class U >

void default_init_allocator< T, A >::construct ( U *  ptr )

inlinenoexcept

construct() [2/2]

template<class T , class A = std::allocator<T>>

template<class U , class... Args>

void default_init_allocator< T, A >::construct ( U *  ptr, Args &&...  args  )

inline

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

• router/src/harness/include/mysql/harness/default_init_allocator.h