By using this site, you agree to our updated Privacy Policy and our Terms of Use. Manage your Cookies Settings.
449,276 Members | 1,260 Online
Bytes IT Community
+ Ask a Question
Need help? Post your question and get tips & solutions from a community of 449,276 IT Pros & Developers. It's quick & easy.

What does this mean? Any help appreciated!

P: n/a
It looks like the Visuakl Studio Intellisense can see the various
functions but its compiler cannot. I am well out of my depth with this
error message.

report.obj : error LNK2019: unresolved external symbol "private: class
std::vector<class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char,class
std::allocator<class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char __thiscall
Table::v3_snapshot(class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char)"
(?v3_snapshot@Table@@AAE?AV?$vector@V?$basic_strin g@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V? $allocator@V?$basic_string@DU?$char_traits@D@std@@ V?$allocator@D@2@@std@@@2@@std@@V?$basic_string@DU ?$char_traits@D@std@@V?$allocator@D@2@@3@@Z)
referenced in function "public: class std::vector<class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char,class std::allocator<class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char __thiscall Table::snapshot(class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char)"
(?snapshot@Table@@QAE?AV?$vector@V?$basic_string@D U?$char_traits@D@std@@V?$allocator@D@2@@std@@V?$al locator@V?$basic_string@DU?$char_traits@D@std@@V?$ allocator@D@2@@std@@@2@@std@@V?$basic_string@DU?$c har_traits@D@std@@V?$allocator@D@2@@3@@Z)

//tables.h
public:
Table(string db_file);
vector<stringrealm_list();
vector<stringsnapshot(string realm);
int get_item_median(string item_code);
int get_item_snap(string item_code);
private:
bool isLoaded;
int version_number;
string get_realm_name(string); // return realm name if one is found
in string
vector<stringv4_snapshot(string realm);
vector<stringv3_snapshot(string realm);

//tables.cpp
....
#include "tables.h"
....
vector<stringTable::snapshot(string realm)
{
vector<stringsnapshot;
if (4 == version_number)
{
snapshot = this->v4_snapshot(realm);
}
else
{
snapshot = this->v3_snapshot(realm);
}

return snapshot;

}

Oct 24 '06 #1
Share this Question
Share on Google+
5 Replies


P: n/a
nt

Oct 24 '06 #2

P: n/a

"pkirk25" <pk****@kirks.netwrote in message
news:11**********************@h48g2000cwc.googlegr oups.com...
It looks like the Visuakl Studio Intellisense can see the various
functions but its compiler cannot. I am well out of my depth with this
error message.

report.obj : error LNK2019: unresolved external symbol "private: class
std::vector<class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char,class
std::allocator<class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char __thiscall
Table::v3_snapshot(class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char)"
(?v3_snapshot@Table@@AAE?AV?$vector@V?$basic_strin g@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V? $allocator@V?$basic_string@DU?$char_traits@D@std@@ V?$allocator@D@2@@std@@@2@@std@@V?$basic_string@DU ?$char_traits@D@std@@V?$allocator@D@2@@3@@Z)
referenced in function "public: class std::vector<class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char,class std::allocator<class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char __thiscall Table::snapshot(class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char)"
(?snapshot@Table@@QAE?AV?$vector@V?$basic_string@D U?$char_traits@D@std@@V?$allocator@D@2@@std@@V?$al locator@V?$basic_string@DU?$char_traits@D@std@@V?$ allocator@D@2@@std@@@2@@std@@V?$basic_string@DU?$c har_traits@D@std@@V?$allocator@D@2@@3@@Z)

//tables.h
public:
Table(string db_file);
vector<stringrealm_list();
vector<stringsnapshot(string realm);
int get_item_median(string item_code);
int get_item_snap(string item_code);
private:
bool isLoaded;
int version_number;
string get_realm_name(string); // return realm name if one is found
in string
vector<stringv4_snapshot(string realm);
vector<stringv3_snapshot(string realm);
Here you promise to the compiler that there exists
somewhere the definition of a function named
'Table::v3_snapshot()'. Did you provide one?
>
//tables.cpp
...
#include "tables.h"
...
vector<stringTable::snapshot(string realm)
This signature states that this function will return
an object of type 'vector<string>'
{
vector<stringsnapshot;
if (4 == version_number)
{
snapshot = this->v4_snapshot(realm);
'snapshot()' is a function. Why are you trying to assign
something to it?
}
else
{
snapshot = this->v3_snapshot(realm);
}

return snapshot;
Why are you trying to return a type other than what
the function is defined to return?
>
}
-Mike
Oct 24 '06 #3

P: n/a
On 24 Oct 2006 06:42:52 -0700, "pkirk25" <pk****@kirks.netwrote:
>It looks like the Visuakl Studio Intellisense can see the various
functions but its compiler cannot. I am well out of my depth with this
error message.
It probably means that you need to add tables.cpp to your project or
make file.

Good luck,
Roland Pibinger
Oct 24 '06 #4

P: n/a
Mike Wahler wrote:
"pkirk25" <pk****@kirks.netwrote in message
>...
vector<stringTable::snapshot(string realm)

This signature states that this function will return
an object of type 'vector<string>'
>{
vector<stringsnapshot;
if (4 == version_number)
{
snapshot = this->v4_snapshot(realm);

'snapshot()' is a function. Why are you trying to assign
something to it?

'snapshot' is also a local variable, hiding the name of the function
in which it's declared. Look at the first line inside the body of
this function.

int foo()
{
int foo = 42;
return foo;
}

int main()
{
return foo();
}

This practice is not recommended, but it's perfectly legal.
>
>}
else
{
snapshot = this->v3_snapshot(realm);
}

return snapshot;

Why are you trying to return a type other than what
the function is defined to return?
Huh?
>>
}
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask
Oct 24 '06 #5

P: n/a
My mistake was to have the declarations done but to have the
implementations under under names. Kicked myself a bit when I saw that
I had forgotten to rename the fuctions after renaming the declarations.

Didn't help that the error message is a mouthful and that Intellisense
seemed to see things that were no longer there but untimately my fault.

Oct 24 '06 #6

This discussion thread is closed

Replies have been disabled for this discussion.