std::experimental::basic_string_view<CharT,Traits>:: substr
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experimental
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basic string view
C++
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std::experimental::basic_string_view
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constexpr
basic_string_view
substr ( size_type pos = 0 , size_type count = npos ) const ; |
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返回子串
[pos, pos + rcount)
的视图，其中
rcount
是
count
与
size
(
)
-
pos
中的较小值。
目录 |
参数
| pos | - | 首个字符的位置 |
| count | - | 请求的长度 |
返回值
子字符串
[pos, pos + rcount)
的视图。
异常
若 pos > size ( ) 则抛出 std::out_of_range
复杂度
常量。
参见
|
复制字符
(公开成员函数) |
|
|
在视图中查找字符
(公开成员函数) |