Generate reusable, multi-instance code that is reentrant.

Generate reentrant code when you want to:

• Deploy your code in multi-threaded environments.

• Share the same algorithm with different persistent data.

• Compile code that uses function variables that are too large to fit on the stack.

If you do not choose to generate reentrant code, MATLAB Coder generates code that uses statically allocated memory for function variables that are too large to fit on the stack, and for global and persistent variables. The use of static memory allocation for these variables means that you cannot deploy the generated code in environments that require code to be reentrant. In addition, the generated code can result in static memory size overflow if you cannot adjust the static memory allocation size to accommodate the static memory requirements of the program. When you generate reentrant code, codegen creates input data structures for function variables that are too large to fit on the stack, and for persistent and global variables. You can then dynamically allocate memory for these input structures. The use of dynamic memory allocation means that you can deploy the code in reentrant environments.