C ++ for_each()和对象函数 [英] c++ for_each() and object functions

问题描述

我的任务如下:

对于给定的整数数组，找到其元素的总和并打印出最终的结果，但要获取总和，您需要在STL中执行for_each()函数仅一次(无循环).

For a given integer array, find the sum of its elements and print out the final result, but to get the sum, you need to execute the function for_each() in STL only once (without a loop).

到目前为止，这是我的代码:

As of now this is my code:

void myFunction (int i) {
cout << " " << i << " " <<  endl;
} 


int main() {

int array[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

vector<int> v(array[0], array[10]);

for_each( v.begin(), v.end(), myFunction);

return 0;
}

但是由于某种原因，输出显示为4198853，起初我以为是内存地址，但我发现那是错误的.关于我可能做错了什么?

But for some reason the output shows up as 4198853, at first I thought it was a memory address but I figured out that was wrong. Any idea's as to what I might be doing wrong?

推荐答案

为什么不只是

for_each( array, array+10, myFunction);

我非常确定 int * 可以用作迭代器

I'm quite sure that int* can be used as iterator

编辑:只需选中此项，它确实可以

EDIT: just checked this, it can indeed

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