inline warning on borland C++

[bob]

Hi,

when compiling source with borland c++ builder, the compiler issues the
following warning....

"functions taking class by-value arguments are not expanded inline"


can anybody tell me why? I mean, whats the difference between by value
and reference arguments wrt inlining?


not important, im just curious.

thanks

G

 

[Victor Bazarov]

when compiling source with borland c++ builder, the compiler issues
the following warning....

"functions taking class by-value arguments are not expanded inline"


can anybody tell me why? I mean, whats the difference between by value
and reference arguments wrt inlining?

Somebody in one of 'borland.public.cpp*' newsgroups might be able
to help. Try them.

V

 

[David Harmon]

On 2 Nov 2006 07:50:44 -0800 in comp.lang.c++, "(e-mail address removed)"

"functions taking class by-value arguments are not expanded inline"

can anybody tell me why? I mean, whats the difference between by value
and reference arguments wrt inlining?

Passing the argument by value means a new copy is made. For a class
instance, the copy constructor is used, which could lead to a
potentially large amount of work being done. I _guess_ that somebody
figured that it just wasn't worth it to potentially put that inline.