valarray基本了解
Xredman
posted @ Jun 19, 2009 09:59:30 AM
in 以前博文
, 1091 阅读
valarray类似于向量vector，其主要用途是对一系列元素进行进行高速的数学计算
#include <iostream>
#include <valarray>
using namespace std;
int main()
{
int i, n = 10;
valarray<int> va1(n), va2(n);
for(i = 0; i < n; i++)
{
va1[i] = i;
va2[i] = -i;
}
cout<<"MAX: "<<va1.max()<<" MIN:"<<va1.min()<<endl;
va2 += va1;
for(i = 0; i < n; i++)
cout<<va2[i]<<" ";
return 0;
}
#include <iostream>
#include <valarray>
using namespace std;
int main()
{
int i, n = 10;
valarray<int> va1(n), va2(n);
for(i = 0; i < n; i++)
{
va1[i] = i;
va2[i] = -i;
}
cout<<"MAX: "<<va1.max()<<" MIN:"<<va1.min()<<endl;
va2 += va1;
for(i = 0; i < n; i++)
cout<<va2[i]<<" ";
return 0;
}
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