Main Content

Variable-Size Data

Variable-size data for code acceleration, dynamic memory allocation


coder.varsizeDeclare variable-size data


Code Generation for Variable-Size Arrays

Variable-size data is data whose size is not known at compile time or whose size can change at run time.

Define Variable-Size Data for Code Generation

Choose a method for defining variable-size data.

Control Memory Allocation for Variable-Size Arrays

Control when dynamic memory allocation is used.

Specify Upper Bounds for Variable-Size Arrays

To avoid dynamic memory allocation, specify upper bounds for a variable-size array.

Incompatibilities with MATLAB in Variable-Size Support for Code Generation

Sometimes, the results for variable-size data in generated code are different than the results in MATLAB®.

Variable-Sizing Restrictions for Code Generation of Toolbox Functions

Some restrictions for variable-size data apply to multiple toolbox functions.


Diagnose and Fix Variable-Size Data Errors

Troubleshoot size mismatch and upper bounds detection errors.