Re: unresolved external error LNK2019

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.stl
Date:
Tue, 24 Jul 2007 16:40:43 -0400
Message-ID:
<eSzMyLjzHHA.5052@TK2MSFTNGP04.phx.gbl>
hembree@nrlmry.navy.mil wrote:

I am getting the following two link errors with Visual Studio C++
2003.

SEDRISDecoder.obj : error LNK2019: unresolved external symbol "public:
__thiscall Exception::Exception(class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> >,int,class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> >,class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> >,bool)" (??
0Exception@@QAE@V?$basic_string@DU?$char_traits@D@std@@V?
$allocator@D@2@@std@@H00_N@Z) referenced in function "public: unsigned
int __thiscall STF_DataList::LoadFile(char *)" (?
LoadFile@STF_DataList@@QAEIPAD@Z)


A class Exception has a constructor declared for it of the form
Exception(string, int, string, string, bool). However, your program
never provides the body (the implementation) for this constructor.

SEDRISDecoder.obj : error LNK2019: unresolved external symbol
"private: class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > __thiscall
Exception::message_with_location(void)const " (?
message_with_location@Exception@@ABE?AV?$basic_string@DU?
$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) referenced in function
"public: class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > __thiscall
Exception::msg(void)const " (?msg@Exception@@QBE?AV?$basic_string@DU?
$char_traits@D@std@@V?$allocator@D@2@@std@@XZ)


Similarly, you have declared but not implemented a member function

string Exception::message_with_location() const;

--
With best wishes,
    Igor Tandetnik

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