In FunctionCompile, system does not recognize external functions and external global variables by default. But we can use KernelFunction to call external function. However, I cannot find any method to use variables or arrays in kernel. Is it possible to use them?
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3$\begingroup$ Pass them as an argument to the function why not $\endgroup$– Jason B.Commented Oct 26, 2022 at 21:55
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2 Answers
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It seems like it is possible:
$numberOfWeekDaysInAYear = 260; (* global variable *)
annualise[days_] := days/$numberOfWeekDaysInAYear;
annualiseC =
FunctionCompile[
Function[
Typed[days, "MachineInteger"],
Typed[KernelFunction[annualise], {"MachineInteger"} -> "MachineInteger"][days]
]
];
annualiseC[120] (*6/13*)
answered Oct 27, 2022 at 12:09
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Such as you have a global variables a:
a = 7;
You can use it in FunctionCompile with a With like this:
cf = With[{avalue = a}, FunctionCompile[
Function[Typed[arg, "MachineInteger"], arg + avalue]]]
cf[20]
27
