How do I reserve capacity ahead of time with std::map for embedded targets?

Learn how to efficiently use std::map in C++ for embedded targets by reserving capacity ahead of time. This approach helps optimize memory usage and performance for environments with limited resources.

std::map, C++, embedded systems, memory management, performance optimization

// Example of how to reserve capacity ahead of time with std::map in C++ #include #include int main() { // Create a std::map std::map myMap; // Preallocate space for 100 elements by reserving capacity // Note: std::map does not have a reserve method // Instead, we can use a common pattern to optimize performance // by initializing the map with a set of keys for (int i = 0; i < 100; ++i) { myMap.emplace(i, "Value " + std::to_string(i)); } // Accessing an element std::cout << "Key 10 has value: " << myMap[10] << std::endl; return 0; }

std::map C++ embedded systems memory management performance optimization

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