From: Dale Stanbrough <dale@goanna.cs.rmit.edu.au>
Subject: Yet another efficiency question - To_Lower
Date: 1997/07/02
Date: 1997-07-02T00:00:00+00:00 [thread overview]
Message-ID: <5pclke$203$1@goanna.cs.rmit.edu.au> (raw)
I was wondering if the a procedure
procedure To_Lower (Item : in out String);
would be any more efficient for performing To_Lower operations
than the equivalent function in Ada.Characters.Handling, for when
a string is modified in place, i.e.
Some_String : String (1..Size);
Some_String := Ada.Characters.Handling.To_Lower (Some_String);
My simple view of the implementation of the function would be that it
allocates space (heap? secondary stack?), copies the values from
Some_String to the temporary, modifies the value, and then copies it
back. (I'm always concerned when I think I see cases of copies being
made for no good reason).
C's to_lower, of course, just does an in place modification of the
'string'.
Dale
next reply other threads:[~1997-07-02 0:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-07-02 0:00 Dale Stanbrough [this message]
1997-07-03 0:00 ` Yet another efficiency question - To_Lower Matthew Heaney
1997-07-04 0:00 ` Robert Dewar
1997-07-11 0:00 ` Dale Stanbrough
1997-07-11 0:00 ` Matthew Heaney
1997-07-15 0:00 ` Laurent Guerby
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