| Constructing Function Calls

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Using the built-in functions described below, you can record the arguments a function received, and call another function with the same arguments, without knowing the number or types of the arguments.
You can also record the return value of that function call, and later return that value, without knowing what data type the function tried to return (as long as your caller expects that data type).

- __builtin_apply_args
- __builtin_apply
- __builtin_return