What are some advanced usages of std::for_each in C++?
std::for_each can be used with lambda expressions for custom operations. You can also combine it with other algorithms.
Can you give me an example of using a lambda with std::for_each?
Sure! Here's a simple example: std::for_each(vec.begin(), vec.end(), [](int n) { std::cout << n * 2 << ' '; });
This doubles each element.
How can I use std::for_each with multiple containers?
You can use it with std::zip
or iterate over multiple containers in a loop, applying the same operation to each.
What about using std::for_each with custom objects?
You can use it with custom objects by defining a lambda that operates on the object's members, like this: `std::for_each(objects.begin(), objects.end(), [](const MyObject& obj) { obj.doSomething(); });
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