C++ 概念: SeedSequence

来自cppreference.com
< cpp‎ | concept

 
 
 
一个seed sequence是一个对象,它产生的无符号整数的值i的范围内0 ≤ i < 232
消耗的范围内的整数数据的基础上.
原文:
A seed sequence is an object that produces unsigned integer values i in the range 0 ≤ i < 232
based on a consumed range of integer data.
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[编辑] 要求

  • S被SeedSequence.
    原文:
    S is a SeedSequence.
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  • q一个目的是Sr是一个潜在的常量对象S.
    原文:
    q is an object of S and r is a potentially constant object of S.
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  • T is the result_type.
  • ibie是至少32位无符号整数的值与InputIteratorvalue_types.
    原文:
    ib,ie are InputIterators with a value_type of unsigned integer values of at least 32 bits.
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  • il is an std::initializer_list<T>.
  • rbre是修改RandomAccessIterators,至少32位的无符号整数的值与value_type.
    原文:
    rb,re are modifiable RandomAccessIterators with a value_type of unsigned integer values of at least 32 bits.
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  • ob is an OutputIterator.
Expression Type Notes Complexity
S::result_type T Unsigned integer of at least 32 bits compile-time
S() Creates a seed sequence with the same default values as other objects of type S constant
S(ib,ie) Creates a seed sequence based on the supplied input bits by [ib,ie) O(ie-ib)
S(il) The same as S(il.begin(), il.end())
q.generate(rb,re) void Fills [rb,re) with 32-bit quantities depending on the initial supplied values and potential previous calls to generate. If it does nothing. O(re-rb)
r.size() size_t The amount of 32-bit integers copied by param. constant
r.param(ob) void Copies 32-bit values to ob that would reproduce the current state of the object if passed to a constructor of S. O(r.size())

[编辑] 另请参阅

  • std::seed_seq