5 docs tagged with "heap"

Overview

Overview

Understanding how C++ programs use memory is fundamental to writing efficient, safe code. Memory is divided into distinct regions with different characteristics and management strategies.

Manual dynamic memory management in C++. Allocates on heap, requires explicit deallocation. Modern C++ prefers smart pointers.

Most embedded coding standards ban dynamic allocation after startup, and most engineers meet the rule before they meet the reason. Stated as a rule it sounds like superstition — malloc works, it is in the standard library, the vendor examples call it. Stated as a consequence it is obvious: a device that runs for three years without restarting cannot use a memory strategy whose correctness depends on restarting.