Variable-Size Data
Variable-size data is data whose size is not known at compile time or changes at run time. To use variable-size data in your MATLAB® code which you intend to accelerate or convert, follow the described guidelines. Certain restrictions apply to the use of variable-size data in MATLAB code that is intended for algorithm acceleration or fixed-point conversion.
Functions
coder.areUnboundedVariableSizedArraysSupported | Check if current configuration settings allow unbounded variable-size arrays (Since R2024a) |
coder.varsize | Resolve size incompatibility errors and declare upper bounds |
Topics
- Generate Code for Variable-Size Arrays
Learn how the code generator defines and handles fixed- and variable-size data.
- 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 variable-size arrays.
- Incompatibilities with MATLAB in Variable-Size Support for Code Generation
Understand how the behavior of the generated code can differ from MATLAB as a result of variable-size data.
Troubleshooting
Resolve Error: Fixed Size on the Left Side but Variable Size on the Right
Troubleshoot errors when assigning variable-size arrays to fixed-size arrays.
Resolve Error: coder.varsize Not Supported for Strings
Troubleshoot code generation error when using coder.varsize
with string variables.
