应该是头文件没有包含。time函数加<ctime> srand和rand函数加<cstdlib> 你应该把整个文件贴出来。
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#include<iostream>#include<cstdlib>#include<ctime>intmain(){// 设置种子为当前时间srand(static_cast<unsignedint>(time(0)));// 生成并输出10个随机数for(inti=0;i<10;i++){intrandomNum=rand();std::cout<<randomNum<<std::endl;}return0;} ...
}std::random_shuffle(activatorTypes.begin(), activatorTypes.end());// Retrieve viewportunsignedintwidth =this->m_Engine->GetWidth();unsignedintheight =this->m_Engine->GetHeight();// Determine deltasfloatdx = width /this->m_NumX;floatdy = height /this->m_NumY;// Define the activator...
exponential_distribution<float> dist(exp(1)); shuffle_order_engine<ranlux24, 333> gen; gen.seed(static_cast<unsigned>(time(false)));for(inti = 0; i < 100; i++) cout << dist(gen) << endl; Topic archived. No new replies allowed....
{// the URNG can't be reseeded unless forcedif(!seeded || FORCE_SEED) { urng().seed(static_cast<unsigned>(seed)); seeded =true; } }// two function overloads to obtain uniform distribution ints and doublesinlineintrand(intfrom,intto) {staticstd::uniform_int_distribution<> dist {...
#include <iostream>#include <random>#include <chrono>intmain() { std::default_random_engine rd(static_cast<unsigned> (std::chrono::system_clock::now().time_since_epoch().count()));// OR// static unsigned seed { static_cast<unsigned> (std::chrono::system_clock::now().time_since_ep...
计算机的随机数都是由伪随机数，即是由小M多项式序列生成的，其中产生每个小序列都有一个初始值，即随机...
Clang complains about thesrand(time(NULL)), saying it takes anunsigned intand wants me to cast thetime_tto silence the warning.time_tis implementation dependant, but I suspect it is really aunsigned long? Perhaps this is an issue with a 32/64 bit conversion going intosrand? I found a fe...
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