Function rgsl::error::set_error_handler_off

pub fn set_error_handler_off() -> Option<fn(_: &str, _: &str, _: u32, _: Value)>

This function turns off the error handler by defining an error handler which does nothing. This will cause the program to continue after any error, so the return values from any library routines must be checked. This is the recommended behavior for production programs. The previous handler is returned (so that you can restore it later).