Function dqcsim::bindings::dqcs_error_set

#[no_mangle]pub extern "C" fn dqcs_error_set(msg: *const c_char)

Sets the latest error message string.

This must be called by callback functions when an error occurs within the callback, otherwise the upstream result for dqcs_error_get() will be undefined.

If msg is set to NULL, the error string is cleared instead.