Hi,
I stumbled across the following error
foo.cc: In function `int main()':
foo.cc:15: error: no matching function for call to `Bar::foo(int)'
foo.cc:9: error: candidates are: void Bar::foo(int, int)
where foo.cc is
struct Foo
{
int i ;
void foo(int i) { this->i = i ; }
} ;
struct Bar : public Foo
{
void foo(int j, int k) { this->i = j * k ; }
} ;
int main()
{
Bar bar ;
bar.foo(2) ;
bar.foo(3, 4) ;
return 0 ;
}
So Foo::foo(int) is no longer accessible in the derived class Bar. --
Though it is accessible if Bar has no foo(int, int) method. -- Is this
covered by the standard, and if so why?
thx & rgds, Steffen g++ -v
Reading specs from
/usr/local/gcc-3.3.1/lib/gcc-lib/alphaev68-dec-osf5.1/3.3.1/specs
Configured with: ../gcc-3.3.1/configure --prefix=/usr/local/gcc-3.3.1
--disable-shared
Thread model: single
gcc version 3.3.1 12  1385 
Steffen wrote:
Hi,
[snip]
int main()
{
Bar bar ;
bar.foo(2) ;
bar.foo(3, 4) ;
return 0 ;
}
So Foo::foo(int) is no longer accessible in the derived class Bar. --
Though it is accessible if Bar has no foo(int, int) method. -- Is this
covered by the standard, and if so why?
Yes. It is called 'function hiding'.
Please serach the groups archive at www.google.com for 'function hiding'.
--
Karl Heinz Buchegger kb******@gascad .at
Thx for the quick answer! -- Though I have to get used to the idea
behind.
"Steffen" <st****@gmx.d e> wrote in message news:11******** **************@ o13g2000cwo.goo glegroups.com.. . Hi,
I stumbled across the following error
foo.cc: In function `int main()':
foo.cc:15: error: no matching function for call to `Bar::foo(int)'
foo.cc:9: error: candidates are: void Bar::foo(int, int)
where foo.cc is
struct Foo
{
int i ;
void foo(int i) { this->i = i ; }
} ;
struct Bar : public Foo
{
using Foo::foo;
// C++ FAQ LITE, http://www.parashift.com/c++-faq-lit...ce.html#faq-23, Question 23.7
void foo(int j, int k) { this->i = j * k ; }
} ;
int main()
{
Bar bar ;
bar.foo(2) ;
bar.foo(3, 4) ;
return 0 ;
}
So Foo::foo(int) is no longer accessible in the derived class Bar. --
Though it is accessible if Bar has no foo(int, int) method. -- Is this
covered by the standard, and if so why?
thx & rgds, Steffen
g++ -v
Reading specs from
/usr/local/gcc-3.3.1/lib/gcc-lib/alphaev68-dec-osf5.1/3.3.1/specs
Configured with: ../gcc-3.3.1/configure --prefix=/usr/local/gcc-3.3.1
--disable-shared
Thread model: single
gcc version 3.3.1
--
Alex Vinokur
email: alex DOT vinokur AT gmail DOT com http://mathforum.org/library/view/10978.html http://sourceforge.net/users/alexvn
Hi Steffen
Also go through the book " Effective C++ by Scott Mayer " .It will
explain you why this behaviour is there in standred .
Regards
Raj
Steffen wrote: Thx for the quick answer! -- Though I have to get used to the idea
behind.
Please quote a relevant portion of the previous message in your
replies. To do so from Google, click "show options" and select the
Reply shown in the expanded header.
Brian
Rajan wrote: Hi Steffen
Also go through the book " Effective C++ by Scott Mayer " .It will
explain you why this behaviour is there in standred .
Please quote a relevant portion of the previous message in your
replies. To do so from Google, click "show options" and select the
Reply shown in the expanded header.
Brian
Default User wrote: Steffen wrote:
Thx for the quick answer! -- Though I have to get used to the idea
behind.
Please quote a relevant portion of the previous message in your
replies. To do so from Google, click "show options" and select the
Reply shown in the expanded header.
What would be the "relevant portion"? The two timestamps from the
original post and the reply? Try limit your requests about quoting
of relevant portions to something that actually makes sense, will you?
V
Victor Bazarov wrote: Default User wrote: Steffen wrote:
Thx for the quick answer! -- Though I have to get used to the idea
behind.
Please quote a relevant portion of the previous message in your
replies. To do so from Google, click "show options" and select the
Reply shown in the expanded header.
What would be the "relevant portion"? The two timestamps from the
original post and the reply?
At the very least, the attribution, so that we know which "quick
answer" the person is talking about.
Try limit your requests about quoting
of relevant portions to something that actually makes sense, will you?
It's then a good thing that this is one of those cases.
With the spreading use of Google, people need to be trained to use the
proper Reply. Nitpicking my attempts to do so sure doesn't help.
Brian
Default User wrote: [...]
With the spreading use of Google, people need to be trained to use the
proper Reply. Nitpicking my attempts to do so sure doesn't help.
Perhaps you should start another forum, like comp.google.how to and give
your advice there? Here it looks more and more like the noise we want to
avoid. I'll happily redirect people to such newsgroup (and we can add
a mention of it in the FAQ) if it existed... Or maybe you could appeal to
Google so that they fix their reply mechanism... In any case, posting
here about any _particular_ news reading software and how to use it is
just like posting about any particular compiler and its command-line
switches, don't you think?
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