# Method Concurrent.Promise()->try_failure()

Method try_failure

  ``void` try_failure(`mixed` `value`)`

Description

  Maybe reject the Future value.

Parameter `value`

  Failure result of the Future.

  Mark the Future as failed if it hasn't already been fulfilled, and in that case schedule the on_failure() callbacks to be called as soon as possible.

See also

  failure(), success(), on_failure()