STL array method summary (2) Capacity and modifiers (21)

Here is a summary of the array method. For details, refer to the following link:
Public member function <array> STD: array: Size

constexpr size_type size() noexcept;

Returns the number of elements in the array. Parametersnone
Return Value

The number of elements in array.

Address: http://blog.csdn.net/qq844352155/article/details/38944721

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Public member function <array> STD: array: max_size

constexpr size_type max_size() noexcept;

Returns the maximum number of elements that an array container can store. Max_size of array is as big as size, which is generally equal to the second template parameter during instantiation. (Unlike vector)
Parametersnone
Return Value

Returns the maximum number of elements that an array can store,

This is a constant.

Address: http://blog.csdn.net/qq844352155/article/details/38943923


------------------------------------------------- Public member function <array> STD: array: empty

constexpr bool empty() noexcept;

Test whether array is empty. Parametersnone
Return Value

Returns true if array size is 0; otherwise, returns false.

Address: http://blog.csdn.net/qq844352155/article/details/38879921

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Public member function <array> STD: array: Fill

void fill (const value_type& val);

Set Val to the values of all elements in array. Parameters

Val

Val is used to fill in the array value.

Return Value

None if the element value assignment throws an exception, it throws an exception.
Address: http://blog.csdn.net/qq844352155/article/details/38943777


__________________________________________________________________________________________________ Public member function <array> STD: array: swap

void swap (array& x) noexcept(noexcept(swap(declval<value_type&>(),declval<value_type&>())));

Exchanges content with X, which is an array of the same type (including the size ).

Parameters

X

X is an array of the same type (the same size), and the array to be exchanged with this array.

Return valuenone.

Address: http://blog.csdn.net/qq844352155/article/details/38944863

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STL array method summary (2) Capacity and modifiers (21)