std::vector::resize

来自cppreference.com
 
 
 
std::vector
成员函数
Original:
Member functions
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vector::vector
vector::~vector
vector::operator=
vector::assign
vector::get_allocator
元素的访问
Original:
Element access
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vector::at
vector::operator[]
vector::front
vector::back
vector::data(C++11)
迭代器
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Iterators
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vector::begin
vector::cbegin

(C++11)
vector::end
vector::cend

(C++11)
vector::rbegin
vector::crbegin

(C++11)
vector::rend
vector::crend

(C++11)
容量
Original:
Capacity
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vector::empty
vector::size
vector::max_size
vector::reserve
vector::capacity
vector::shrink_to_fit(C++11)
修饰符
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Modifiers
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vector::clear
vector::insert
vector::emplace(C++11)
vector::erase
vector::push_back
vector::emplace_back(C++11)
vector::pop_back
vector::resize
vector::swap
 
void resize( size_type count, T value = T() );

void resize( size_type count );

void resize( size_type count, const value_type& value);
(至 C++11)
(C++11 起)
(C++11 起)

调整容器大小,使其能够容纳 count 个元素。

如果当前大小小于 count,则会追加额外的元素,并将它们初始化为 value

如果当前大小大于 count,则容器会缩小到仅包含前 count 个元素。

目录

[编辑] 参数

count - 容器的新大小
value - 新元素的初始值

[编辑] 返回值

(无)

[编辑] 复杂度

与容器大小线性相关。

[编辑] 另请参阅

返回的元素数
Original:
returns the number of elements
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(公共成员函数) [edit]