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lulu yao
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 Posted: Thu Mar 17, 2005 9:40 pm Post subject: How can I find back the name of my class? |
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Hi all,
see the following excerpt, just for test
======
int C;
class C {
....
};
....
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
Regards
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Heinz Ozwirk
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| Posted: Fri Mar 18, 2005 1:03 pm Post subject: Re: How can I find back the name of my class? |
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"lulu yao" <lulu.yao (AT) gmail (DOT) com> schrieb im Newsbeitrag news:1111067523.664639.118640 (AT) z14g2000cwz (DOT) googlegroups.com...
| Quote: | Hi all,
see the following excerpt, just for test
======
int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
class C a;
HTH
Heinz
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Victor Bazarov
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| Posted: Fri Mar 18, 2005 1:05 pm Post subject: Re: How can I find back the name of my class? |
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"lulu yao" <lulu.yao (AT) gmail (DOT) com> wrote...
| Quote: | Hi all,
see the following excerpt, just for test
======
int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
You write
class C a;
V
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R Samuel Klatchko
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| Posted: Fri Mar 18, 2005 1:05 pm Post subject: Re: How can I find back the name of my class? |
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lulu yao wrote:
| Quote: | ======
int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
Qualify the class name with "class":
class C a;
samuel
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Stefan Strasser
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| Posted: Fri Mar 18, 2005 1:06 pm Post subject: Re: How can I find back the name of my class? |
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lulu yao schrieb:
| Quote: | int C;
class C {
....
};
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
class C a;
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
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Raymond Martineau
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| Posted: Fri Mar 18, 2005 1:08 pm Post subject: Re: How can I find back the name of my class? |
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On 17 Mar 2005 16:40:50 -0500, "lulu yao" <lulu.yao (AT) gmail (DOT) com> wrote:
| Quote: | int C;
class C {
...
};
...
C a; // failed to compile
|
class C a;
Of course, you should take steps to make sure that this isn't necessairy
for writing programs.
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rajkumar@hotmail.com
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| Posted: Fri Mar 18, 2005 1:13 pm Post subject: Re: How can I find back the name of my class? |
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use name spaces ....
put int C in one and class C in another... and use the appropriate
namespace to resolve the ambiguity
Raj
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Boat
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| Posted: Fri Mar 18, 2005 1:18 pm Post subject: Re: How can I find back the name of my class? |
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"lulu yao" <lulu.yao (AT) gmail (DOT) com> wrote
| Quote: | Hi all,
see the following excerpt, just for test
======
int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
The straightforward, obvious (?) way:
class C a;
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Maxim Yegorushkin
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| Posted: Sat Mar 19, 2005 12:07 am Post subject: Re: How can I find back the name of my class? |
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lulu yao <lulu.yao (AT) gmail (DOT) com> wrote:
| Quote: | ======
int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
class C a;
--
Maxim Yegorushkin
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
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Ivan Vecerina
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| Posted: Sat Mar 19, 2005 12:10 am Post subject: Re: How can I find back the name of my class? |
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"lulu yao" <lulu.yao (AT) gmail (DOT) com> wrote
| Quote: | see the following excerpt, just for test
======
int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
You can write:
class C a; // will work ...
This goes back to C where enum and struct names are in a different
"namespace" (not in the C++ meaning of it) that variable names,
so their identifiers have to always be prefixed with 'enum' or 'struct'
( unless you use a typedef, i.e. typedef struct {...} MyStruct; ).
Of course, this is of little practical interest in "serious"
C++ code...
Cheers,
Ivan
--
http://ivan.vecerina.com/contact/?subject=NG_POST <- email contact form
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Shantanu Garg
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| Posted: Sat Mar 19, 2005 12:12 am Post subject: Re: How can I find back the name of my class? |
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| Quote: | see the following excerpt, just for test
======
int C;
class C {
...
};
...
C a; // failed to compile
======
|
class C a;
Specify clearly to compiler, what you want to create...
| Quote: |
How can I indicate compiler I want a class name rather than variable
name?
|
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
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Ben Hutchings
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| Posted: Sat Mar 19, 2005 12:15 am Post subject: Re: How can I find back the name of my class? |
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lulu yao wrote:
| Quote: | Hi all,
see the following excerpt, just for test
======
int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
|
class C a; // also "struct" will work instead of "class"
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Francis Glassborow
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| Posted: Sat Mar 19, 2005 1:01 am Post subject: Re: How can I find back the name of my class? |
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In article <4qt_d.23722$YD4.10695 (AT) newssvr12 (DOT) news.prodigy.com>, Boat
<boat042-spam (AT) yahoo (DOT) com> writes
| Quote: | int C;
class C {
...
};
...
C a; // failed to compile
======
How can I indicate compiler I want a class name rather than variable
name?
The straightforward, obvious (?) way:
class C a;
|
However the 'obvious' solution is not to create the problem. The
situation only exists because C placed struct/union/enum 'names' in
their own namespace (called tags) and so it was necessary for
compatibility reasons to allow the above syntax. However no sane
programmer would voluntarily use it.
--
Francis Glassborow ACCU
Author of 'You Can Do It!' see http://www.spellen.org/youcandoit
For project ideas and contributions: http://www.spellen.org/youcandoit/projects
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
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