Glossary coding Term Page
Stack Memory
The automatic memory region for local variables and call information
Core Idea
Stack memory is the region that temporarily stores local variables and execution information when functions run. Once a function returns, its stack space is cleaned up automatically, which makes the stack the basic model for short-lived values.
A common beginner mistake is trying to keep using the address of a local variable after the function ends. Because that data lived on the stack, its lifetime is over. This is one of the clearest contrasts with heap memory.
Why It Matters Here
Mathbong uses stack memory to explain local variables, function calls, array lifetime, and pointer bugs in the C series. It becomes the baseline comparison point before moving into dynamic allocation.