How do I provide stable iteration order with std::map for embedded targets?

When working with embedded targets in C++, ensuring a stable iteration order while using `std::map` is crucial, especially if you need consistent behavior across different platforms or compilers. The `std::map` provides a sorted order based on keys, which guarantees that iteration over the elements will always be in a specific order (according to the key comparison). To maintain this stable order, make sure to use a consistent key type and a stable comparison function if you are using custom keys.

This article explains how to maintain a stable iteration order with `std::map` in C++ for embedded systems.

std::map, C++, embedded systems, stable iteration order, sorting

// Example of using std::map in C++ #include #include int main() { // Create a std::map to ensure stable and sorted order of keys std::map myMap; myMap[3] = "Three"; myMap[1] = "One"; myMap[2] = "Two"; // Iterating over the map to show stable order for (const auto& pair : myMap) { std::cout << pair.first << ": " << pair.second << std::endl; } return 0; }

std::map C++ embedded systems stable iteration order sorting

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