External Code Integration
When you have external code, custom code, or legacy code developed in C/C++, you
can integrate it directly into your MATLAB code. To call C/C++ functions, use the coder.ceval function. To pass data
types to or from the external code that are not definable in MATLAB code, such as pointer types, FILE types for
external file I/O, or other types, use coder.opaque. Configure your build to include and link to external
source files, header files, object files, and libraries by using coder.updateBuildInfo. To provide an object-oriented interface to an
external C library, package your function calls into a class derived from coder.ExternalDependency.
Classes
coder.ExternalDependency | Interface to external code |
coder.BuildConfig | Build context during code generation |
Functions
coder.ceval | Call external C/C++ function |
coder.ref | Indicate data to pass by reference |
coder.rref | Indicate read-only data to pass by reference |
coder.wref | Indicate write-only data to pass by reference |
coder.cinclude | Include header file in generated code |
coder.opaque | Declare variable in generated code |
coder.reservedName | Generate code that does not use specified identifier names |
coder.updateBuildInfo | Update build information object RTW.BuildInfo |
Topics
Call C/C++ Code from MATLAB Code
Integrate C/C++ code with MATLAB code intended for code generation.
Configure Build for External C/C++ Code
Specify source files and build parameters for external C/C++ code.
Develop Interface for External C/C++ Code
Access your external code using a class interface.
Mapping MATLAB Types to Types in Generated Code
Understand how the code generator maps MATLAB data types to data types in the generated C/C++ code.
Integrate Multiple Generated C++ Code Projects
Integrate the generated C++ code from two projects into a single larger project.
Troubleshooting
Unknown Output Type for coder.ceval
Define the output type for external C/C++ function calls.
