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property

ffi.FFIFunction.returnsreadonly returns?: FFITypeOrStringReturn type to a FFI function (C ABI)

Defaults to FFIType.void

To pass a pointer, use "ptr" or "pointer" as the type name. To get a pointer, see ptr.

From JavaScript:

import { dlopen, CString } from "bun:ffi" const lib = dlopen('z', { version: { returns: "ptr", } }); console.log(new CString(lib.symbols.version())); In C:

char* version() { return "1.0.0"; }

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