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Function Definition

Define and call functions for code generation

Blocks

MATLAB FunctionInclude MATLAB code in models that generate embeddable C code
MATLAB SystemInclude System object in model

Functions

coder.extrinsicDeclare a function as extrinsic and execute it in MATLAB
coder.ignoreSizePrevent code generator from creating function specializations for constant-size expressions
coder.ignoreConstPrevent use of constant value of expression for function specializations
coder.unrollUnroll for-loop by making a copy of the loop body for each loop iteration
coder.sameSizeBinaryOpApply element-wise binary operations without implicit expansion
coder.noImplicitExpansionInFunctionDisable implicit expansion within the specified function in the generated code

Topics

Troubleshooting

Nonconstant Index into varargin or varargout in a for-Loop

Force loop unrolling when the code generator cannot determine the value of the index into varargin or varargout.

Avoid Duplicate Functions in Generated Code

Reduce the occurrence of duplicate functions in the generated code.

Output Variable Must Be Assigned Before Run-Time Recursive Call

Troubleshoot output variable assignment for run-time recursion.

Compile-Time Recursion Limit Reached

Troubleshoot compile-time recursion limit error.