Comprehensive architectural guide to high-performance Base64 encoding in modern C++ (C++11/17/20) and memory-constrained embedded systems (AVR, STM32, ESP32).
Frequently Asked Questions
Q1. Why should I avoid std::string for Base64 in embedded C++?
std::string frequently invokes malloc() and realloc(), causing heap fragmentation over long operational uptimes on devices with <64KB RAM.