473,788 Members | 2,816 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

undefined symbol + shared object + template

I have not done much programming with template so please excuse my
inexperience. I have function defined in one of the class in this
manner. This function is being showed as an undefined function in the
shared object that we have created. I am getting a link time error that
symbol not found while creating an execuable.

template <Class T> long
ITLDOdbFactory_ T<Class Y>::connection_ count (const string& db_name)
throw (ITLDOdbConnect Exception)
{
return queue->connections( );
}

I did an nm on the object file of this code and its not there. I don't
know why this happens or what is suppose to happen. I was wondering if
somebody can give me the heads up so that I can then find my way...

tia...

Oct 7 '05 #1
2 2999
kamit wrote:
I have not done much programming with template so please excuse my
inexperience. I have function defined in one of the class in this
manner. This function is being showed as an undefined function in the
shared object that we have created. I am getting a link time error that
symbol not found while creating an execuable.

template <Class T> long
ITLDOdbFactory_ T<Class Y>::connection_ count (const string& db_name)
throw (ITLDOdbConnect Exception)
{
return queue->connections( );
}

I did an nm on the object file of this code and its not there. I don't
know why this happens or what is suppose to happen. I was wondering if
somebody can give me the heads up so that I can then find my way...

tia...


It's in the FAQ, it's also (I reckon) the single most commonly asked
question in this group.

http://www.parashift.com/c++-faq-lit....html#faq-35.8

john
Oct 7 '05 #2
Thanks john !!

Oct 7 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
11268
by: Stu | last post by:
I am trying to build the xerces shared library with 2.3.0 version of their source code on an AIX 5.1 32 bit machine with the following version of the g++ compiler /usr/local/bin/g++ -v Reading specs from /usr/local/lib/gcc-lib/powerpc-ibm-aix5.1.0.0/3.3.1/specs Configured with: ../gcc-3.3.1/configure --disable-nls Thread model: aix gcc version 3.3.1
2
4456
by: Manuel Maria Diaz Gomez | last post by:
Hi Everybody, maybe you can give me a hint about this. I implemented a simple singleton Factory that will (among other things) keep a registry of objects. Objects register themself in the factory in the following way: static MyObject myInstance;
8
4592
by: Scott J. McCaughrin | last post by:
The following program compiles fine but elicits this message from the linker: "undefined reference to VarArray::funct" and thus fails. It seems to behave as if the static data-member: VarArray::funct were an extern, but it is declared in the same file (q.v.). What is the remedy for this? =================
3
19316
by: Kenneth Kahl | last post by:
Hello, I would like to call a C++ programm out of Java with help of JNI. By the followed command I created a "shared library": g++ -shared -o libcalculate.so rechner.cpp When I create an object from the existing program inside a method of my class rechner.cpp, and then call the method out of java, a following
1
5550
by: yamitmehta | last post by:
When I compile to code using g++arm of VxWorks 5.5 and put it on my board i get the follwing undefined symbols:- Cpool and Csingleton are template classes. CPool has the static member variables:-ms_uCapacity ,ms_uAllocatedCount , ms_uLockCapacity ,ms_pmutex -ld < yamit/apps1.out Undefined symbol: _Q23m5tt5CPool1ZQ23m5t10CMarshaler$ms_uCapacity (binding 1 type 0) Undefined symbol: _Q23m5tt5CPool1ZQ23m5t10CMarshaler$ms_uAllocatedCount
1
4914
by: Justin Johnson | last post by:
Hello, I'm trying to build Python 2.5.0 on AIX 5.3 using IBM's compiler (VisualAge C++ Professional / C for AIX Compiler, Version 6). I run configure and make, but makes fails with undefined symbols. See the output from configure and make below. svnadm /svn/build/python-2.5.0>env CC=cc CXX=xlC ./configure --prefix=$base_dir \ checking MACHDEP... aix5
5
10487
by: kp | last post by:
Hi, I am compiling on an AIX 5.1 box and my test machine is AIX 5.3. I run the foll. steps for compiling my test binary "test" /usr/vacpp/bin/xlC test.c -c -o test.o -I/home/jag/progs/include -I/ usr/lpp/application/include /usr/vacpp/bin/xlC -o test -L/home/jag/progs/lib -L/usr/lib -L/usr/lpp/ application/lib -brtl -s test.o -lapplicationapi -liconv
5
1745
by: .rhavin grobert | last post by:
Hi group....;-) i have the following class.... _____________________________________________________ // QSharedReg.hpp typedef unsigned __int64 QUAD; using namespace boost;
6
19028
by: tvnaidu | last post by:
opening shared lib with dlopen, gets success, but dlsym returns an error saying undefined symbol, also passing "-rdynamic" during linking this shared lib, any idea?. dlopen success, dlsym gets error, also when I do nm on this shared lib, I can see symbol, this is standalone lib, not linked with executable. if ((handle = dlopen(libname, RTLD_NOW)) == NULL) { printf("ERROR: cannot load library: %s, %s\n", libname,...
0
9656
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9498
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10172
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
0
8993
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
7517
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6750
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
5398
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
5536
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
3
2894
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.