std::allocator_traits<Alloc>::max_size

static size_type max_size( const Alloc& a ) noexcept;

static constexpr size_type max_size( const Alloc& a ) noexcept;

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. Alloc does not have the member function max_size()), then returns std::numeric_limits<size_type>::max() / sizeof(value_type).

Parameters

Return value

Theoretical maximum allocation size.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

See also