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sriram
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 Posted: Tue Mar 15, 2005 3:55 pm Post subject: Strange liniking error with std::set usage |
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I have posted this on comp.lang.c++ and I am posting here too:
I have the following:
class BSA
{
...
...
...
...
public:
enum VRGAttrId {
attrIdVRGNull,
attrIdVRGAdminStatus,
attrIdVRGVRNames,
attrIdVRGRowStatus,
attrIdVRGLocations
};
typedef set<VRGAttrId, less VRGAttrIdSet;
typedef pair<Status, VRGAttrId> VRGStatusPair;
}
when i compile/link, i am getting the following link error
In function `BSA::~BSA(void)':
undefined reference to
`rb_tree<BSA::VRGAttrId, BSA::VRGAttrId,
identity
__alloc<true, 0> >::clear(void)'
The class "BSA" is composed of several other classes
and it used to compile and link fine, till I added the above
I dont have any "rb_tree" in the code. I guess this is some
STL internal symbol? How do i get rid of the problem?
thanks in adv
I am usung ccppc (win2k cross compiler for ppc ). Since this class
is huge I cant check with g++.
-sb
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Mary K. Kuhner
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| Posted: Wed Mar 16, 2005 8:51 am Post subject: Re: Strange liniking error with std::set usage |
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In article <1110861312.631896.126960 (AT) l41g2000cwc (DOT) googlegroups.com>,
sriram <sriramb12 (AT) gmail (DOT) com> wrote:
| Quote: | when i compile/link, i am getting the following link error
In function `BSA::~BSA(void)':
undefined reference to
`rb_tree<BSA::VRGAttrId, BSA::VRGAttrId,
identity
__alloc<true, 0> >::clear(void)'
The class "BSA" is composed of several other classes
and it used to compile and link fine, till I added the above
I dont have any "rb_tree" in the code. I guess this is some
STL internal symbol? How do i get rid of the problem?
|
rb_tree is almost surely a red-black tree, a common algorithm
for implementing std::set and std::map. So this points at something
amiss with your set. The error message parses out to "I couldn't
put the compiler-generated destructor together because I
couldn't find one of the std::set functions."
Did you write less<BSA::VRGAttrID>? Is it somewhere that it
can be found?
One that bites me all the time: does this class have virtual
functions? If so, have you implemented every one of them? While
an unimplemented regular function is not a problem, an
unimplemented virtual function often gives link errors that
complain about some other, innocent function (in gcc, often the
constructor or destructor).
Mary Kuhner [email]mkkuhner (AT) eskimo (DOT) com[/email]
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
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Ismail Pazarbasi
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| Posted: Wed Mar 16, 2005 9:05 am Post subject: Re: Strange liniking error with std::set usage |
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it looks fine. what's your compiler and STL vendor? does "set" work in
other projects?
Ismail
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
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