std::extents<IndexType,Extents...>:: rev-prod-of-extents
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(C++17)
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| Sequence | ||||
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(C++11)
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(C++26)
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(C++26)
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(C++11)
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| Associative | ||||
| Unordered associative | ||||
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(C++11)
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(C++11)
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(C++11)
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(C++11)
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| Adaptors | ||||
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(C++23)
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(C++23)
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(C++23)
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(C++23)
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| Views | ||||
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(C++20)
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(C++23)
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| Tables | ||||
| Iterator invalidation | ||||
| Member function table | ||||
| Non-member function table |
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| Member functions | ||||
| Observers | ||||
| Helpers | ||||
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extents::
rev-prod-of-extents
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| Non-member functions | ||||
| Deduction guides |
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constexpr
std::
size_t
/*反向维度乘积*/
(
rank_type i
)
const
noexcept
;
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(C++23 起)
( 仅用于说明* ) |
|
返回索引大于 i 的维度的尺寸乘积。若 i < rank ( ) 为 false 则行为未定义。
参数
| i | - | 一个索引，高于该索引的对应维度大小将被相乘 |
返回值
若
i
+
1
<
rank
(
)
为
true
，则返回区间
[
i
+
1
,
rank
(
)
)
内所有
k
对应的
extent
(
k
)
的乘积，否则返回
1
。
参见
返回范围
[
0
,
i
)
内维度大小的乘积
( 仅用于说明的成员函数* ) |