Algorithm Design Basics

Algorithm design considerations for code generation, behavior of generated code

Generating code from MATLAB^® algorithms allows you to design, implement, and test software completely within the MATLAB workspace. You can:

Verify that your algorithms are suitable for code generation
Generate efficient, readable, and compact C/C++ code automatically, eliminating manually translation and minimizing the risk of introducing errors in the code.
Modify your design in MATLAB code to take into account the specific requirements of desktop and embedded applications, such as data type management, memory use, and speed.
Test the generated code and easily verify that your modified algorithms are functionally equivalent to your original MATLAB algorithms.
Generate MEX functions to accelerate MATLAB algorithms or speed up fixed-point MATLAB code.
Generate hardware description language (HDL) from MATLAB code.
To generate C/C++ or MEX code from MATLAB algorithms, you must have MATLAB Coder™ and a C/C++ compiler installed.

Functions

`coder.allowpcode`	Control code generation from P-code files
`coder.ceval`	Call C/C++ function from generated code
`coder.cinclude`	Include header file in generated code
`coder.cstructname`	Name C structure type in generated code
`coder.extrinsic`	Declare function as extrinsic and execute it in MATLAB
`coder.inline`	Control inlining of current function in generated code
`coder.inlineCall`	Inline called function in generated code (Since R2024a)
`coder.load`	Load compile-time constants from MAT-file or ASCII file
`coder.nonInlineCall`	Prevent inlining of called function in generated code (Since R2024a)
`coder.nullcopy`	Declare uninitialized variables in generated code
`coder.opaque`	Declare variable in generated code
`coder.ref`	Indicate data to pass by reference
`coder.screener`	Determine if function is suitable for code generation
`coder.rref`	Indicate read-only data to pass by reference
`coder.target`	Determine if code generation target is specified target
`coder.unroll`	Unroll `for`-loop by making a copy of the loop body for each loop iteration
`coder.varsize`	Resolve size mismatch errors and declare upper bounds
`coder.wref`	Indicate write-only data to pass by reference
`coder.updateBuildInfo`	Update `RTW.BuildInfo` build information object

`coder.ExternalDependency`	Interface to external code
`coder.BuildConfig`	Build context during code generation

When to Generate Code from MATLAB Algorithms
Decide whether to generate code for your application.
Which Code Generation Feature to Use
Choose code generation feature for your application.
Differences Between Generated Code and MATLAB Code
Generated C/C++ code can behave differently than original MATLAB source code.
Code Generation Readiness Tool
The code generation readiness tool screens MATLAB code for features and functions that code generation does not support.
Check Code Using the Code Generation Readiness Tool
Run the code generation readiness tool at the command line or from the current folder browser.
MATLAB Language Features Supported for C/C++ Code Generation
Use the MATLAB language features and functions that code generation supports.
MATLAB Code Design Considerations for Code Generation
When writing MATLAB for code generation, consider design constraints.

Define the output type for external C/C++ function calls.