This language feature is only available from Ada 2005 on.Category:Book:Ada Programming/Ada 2005 feature#Ada.Execution Time Ada.Execution_Time is a unit of the Predefined Language Environment since Ada 2005.

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Specification

--                     Standard Ada library specification
--   Copyright (c) 2003-2018 Maxim Reznik <reznikmm@gmail.com>
--   Copyright (c) 2004-2016 AXE Consultants
--   Copyright (c) 2004, 2005, 2006 Ada-Europe
--   Copyright (c) 2000 The MITRE Corporation, Inc.
--   Copyright (c) 1992, 1993, 1994, 1995 Intermetrics, Inc.
--   SPDX-License-Identifier: BSD-3-Clause and LicenseRef-AdaReferenceManual
-- -------------------------------------------------------------------------

with Ada.Real_Time;
with Ada.Task_Identification;

package Ada.Execution_Time is

   type CPU_Time is private;

   CPU_Time_First : constant CPU_Time;
   CPU_Time_Last  : constant CPU_Time;
   CPU_Time_Unit  : constant := implementation_defined;

   CPU_Tick : constant Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span;

   function Clock (T : in Ada.Category:Book:Ada Programming/Pages containing deprecated templatesTask_Identification.Category:Book:Ada Programming/Pages containing deprecated templatesTask_Id
                     := Ada.Category:Book:Ada Programming/Pages containing deprecated templatesTask_Identification.Category:Book:Ada Programming/Pages containing deprecated templatesCurrent_Task)
     return CPU_Time;

   function "+" (Left  : in CPU_Time;
                 Right : in Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span)
     return CPU_Time;

   function "+" (Left  : in Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span;
                 Right : in CPU_Time)
     return CPU_Time;

   function "-" (Left  : in CPU_Time;
                 Right : in Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span)
     return CPU_Time;

   function "-" (Left  : in CPU_Time;
                 Right : in CPU_Time)
     return Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span;

   function "<" (Left  : in CPU_Time;
                 Right : in CPU_Time)
     return Boolean;

   function "<=" (Left  : in CPU_Time;
                  Right : in CPU_Time)
     return Boolean;

   function ">" (Left  : in CPU_Time;
                 Right : in CPU_Time)
     return Boolean;

   function ">=" (Left  : in CPU_Time;
                  Right : in CPU_Time)
     return Boolean;

   procedure Split (T  : in     CPU_Time;
                    SC :    out Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesSeconds_Count;
                    TS :    out Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span);

   function Time_Of (SC : in Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesSeconds_Count;
                     TS : in Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span
                       := Ada.Category:Book:Ada Programming/Pages containing deprecated templatesReal_Time.Category:Book:Ada Programming/Pages containing deprecated templatesTime_Span_Zero)
     return CPU_Time;

private

   pragma Import (Ada, CPU_Time);
   pragma Import (Ada, CPU_Time_First);
   pragma Import (Ada, CPU_Time_Last);
   pragma Import (Ada, CPU_Tick);

end Ada.Category:Book:Ada Programming/Pages containing deprecated templatesExecution_Time;

See also