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use crate::mlvalues::Value;
extern "C" {
pub fn caml_callback(closure: Value, arg: Value) -> Value;
pub fn caml_callback2(closure: Value, arg1: Value, arg2: Value) -> Value;
pub fn caml_callback3(closure: Value, arg1: Value, arg2: Value, arg3: Value) -> Value;
pub fn caml_callbackN(closure: Value, narg: usize, args: *mut Value) -> Value;
pub fn caml_callback_exn(closure: Value, arg1: Value) -> Value;
pub fn caml_callback2_exn(closure: Value, arg1: Value, arg2: Value) -> Value;
pub fn caml_callback3_exn(closure: Value, arg1: Value, arg2: Value, arg3: Value) -> Value;
pub fn caml_callbackN_exn(closure: Value, narg: usize, args: *mut Value) -> Value;
pub static mut caml_callback_depth: usize;
}
pub const fn is_exception_result(val: Value) -> bool {
(val as usize) & 3 == 2
}
pub const fn extract_exception(val: Value) -> Value {
(val as isize) & !3
}