|C++ linking v.s. C firstname.lastname@example.org (1995-12-19)|
|Re: C++ linking v.s. C email@example.com (1995-12-20)|
|From:||firstname.lastname@example.org (Nathan A. Yoffa)|
|Date:||19 Dec 1995 14:22:48 -0500|
|Organization:||Deneb Robotics, Inc.|
|Keywords:||C, C++, question, comment|
I am looking for the answer to a (hoepfully) simple question. I have
a large application (~million lines of code) which is written in 'C',
and is actually composed of several DSO's. Because I wish to make
calls into C++ objects (using 'C' wrapper routines) I must LINK my
main program with CC (C++ compler/linker) as opposed to cc ('C'
compiler/linker) so that name-mangling doesn't screw me up.
My question is the folllowing: To what degree does using CC for this
link produce different code (if any). Members of my organization are
paranoid about re-linking related products in this fashion for fear
that it will somehow introduce unknown variables into the situation
which have not been thoroughly debugged/tested.
These other applications are written entirely in 'C', and currently do
not use any C++ object code. For consistency, we would like to have
all our code linked either one way or the other. Please clarify what
"danger" if-any is introduced by linking the 'C' application with CC.
I was hoping to get proof/evidence to demonstrate that for a pure 'C'
application, using CC would produce identical code as cc.
[Every C and C++ compiler I know use a common linker. I'd be astonished if
the code changed, though it's possible you might find yourself using C++
libraries where you used to use C libraries. -John]
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