How do I merge two containers efficiently with std::vector for embedded targets?

In C++, merging two containers, such as `std::vector`, can be efficiently done using the `insert` method along with iterators. This approach is particularly useful in embedded systems where memory usage and processing time are critical. The `insert` method allows you to place elements from one vector into another without needing to copy the entire contents manually.

Here is a simple example demonstrating how to merge two `std::vector` containers:

#include <iostream> #include <vector> int main() { std::vector<int> vec1 = {1, 2, 3}; std::vector<int> vec2 = {4, 5, 6}; // Merging vec2 into vec1 vec1.insert(vec1.end(), vec2.begin(), vec2.end()); // Output the merged vector for (int x : vec1) { std::cout << x << " "; } return 0; }

keywords: C++ merge std::vector embedded systems efficient containers

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