Delphi links the entire DCU into the application. The idea is to keep
dcu's as concise as necessary, and to remove
unneeded ones from the uses clauses. with Optimization turned on when
you compile a dcu it will remove any
lines of code that are perceived as unnecessary to the application.
John Bird wrote:
A question about how Delphi works...
1 - Main question is about Library routines. I maintain a library unit with
a lot of (non-visual) procedures and functions for various miscellaneous
tasks - date formatting, number formatting, file i/o etc. Some 70 routines
and growing. Now when I use this unit in a program, does (a) everything in
the unit get compiled and linked in, or (b) is it smart enough just to get
just the code called (including library procedures called from another
called from the program). I have come from another language where it always
did (b), hoping Delphi is as smart. If not, then I need to separate my
library procedures into smaller logically related units rather than one
humungous big unit with everything in it to avoid the programs getting
bloated with non-used code.
John B
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