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I believe many inexperienced people don't know what to do about how to use the for_each function in C++, so this paper summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

For_each () is actually a function template with the following source code

Link: http://www.cplusplus.com/reference/algorithm/for_each/?kw=for_each

Template

Function for_each (InputIterator beg, InputIterator end, Function f) {

While (beg! = end)

F (* beg++)

}

Can you read it?

For example:

/ / for_each example

# include / / std::cout

# include / / std::for_each

# include / / std::vector

Void myfunction (int I) {/ / function:

Std::cout

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