| title | <allocators> macros | |||||
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| ms.date | 11/04/2016 | |||||
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| ms.assetid | 9cb5ee07-1ff9-4594-ae32-3c8c6efb511a | |||||
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ALLOCATOR_DECL
CACHE_CHUNKLIST
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CACHE_FREELIST
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CACHE_SUBALLOC
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SYNC_DEFAULT
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Yields an allocator class template.
#define ALLOCATOR_DECL(cache, sync, name) <alloc_template>The macro yields a template definition template <class Type> class name {.....} and a specialization template <> class name<void> {.....} which together define an allocator class template that uses the synchronization filter sync and a cache of type cache.
For compilers that can compile rebind, the resulting template definition looks like this:
struct rebind
{ /* convert a name<Type> to a name<Other> */
typedef name<Other> other;
};For compilers that cannot compile rebind the resulting template definition looks like this:
template <class Type<class name
: public stdext::allocators::allocator_base<Type,
sync<stdext::allocators::rts_alloc<cache>>>
{
public:
name() {}
template <class Other>
name(const name<Other>&) {}
template <class Other>
name& operator= (const name<Other>&)
{
return *this;
}
};Yields stdext::allocators::cache_chunklist<sizeof(Type)>.
#define CACHE_CHUNKLIST <cache_class>Yields stdext::allocators::cache_freelist<sizeof(Type), max>.
#define CACHE_FREELIST(max) <cache_class>Yields stdext::allocators::cache_suballoc<sizeof(Type)>.
#define CACHE_SUBALLOC <cache_class>Yields a synchronization filter.
#define SYNC_DEFAULT <sync_template>If a compiler supports compiling both single-threaded and multi-threaded applications, for single-threaded applications the macro yields stdext::allocators::sync_none; in all other cases it yields stdext::allocators::sync_shared.