std::allocator_traits<Alloc>::max_size

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Dynamic memory management
Uninitialized storage
(C++17)
Garbage collection support
Miscellaneous
(C++20)
(C++11)
(C++11)
C Library
Low level memory management
 
 
Defined in header <memory>
static size_type max_size( const Alloc& a ) noexcept;
(since C++11)

If possible, obtains the maximum theoretically possible allocation size from the allocator a, by calling

a.max_size()

If the above is not possible (e.g. a does not have the member function max_size()), then returns std::numeric_limits<size_type>::max() (until C++17)std::numeric_limits<size_type>::max() / sizeof(value_type) (since C++17)

Parameters

(none)

Return value

Theoretical maximum allocation size

See also

(deprecated in C++17)(removed in C++20)
returns the largest supported allocation size
(public member function of std::allocator<T>)