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Full Discussion: link error problem
Operating Systems Linux link error problem Post 58270 by niukun on Wednesday 17th of November 2004 02:59:28 AM
Old 11-17-2004
link error problem
Dear linuxers,

I'm a novice in C++ programming.
I wrote a ReadFile class in file ReadFile.cpp.
After that, I wrote a test.cpp, which contains a main function, to test whether my class work well.
I follow the following steps to compile the ReadFile.cpp file.
g++296 -c ReadFile.cpp -o ReadFile.o
g++296 ReadFile.o test.cpp -o test.o
I got two link error.
One mention that one of my funtions which called atoi contained in ReadFile.o was duplicated declared in file/tmp/xxxxxx.o(xxxxxx varies each time I link the program).
The other says one of the pointer in main function ReadFile *read_file_ = new ReadFile() was undefined reference to ReadFile's virtual table.

Would someone be kind enough to tell me how can I solve the problem?

Thanks in advance.

Sincerely,
Kun
 

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LEARN ABOUT DEBIAN

wibble-test-genrunner

wibble-test-genrunner(1)				      General Commands Manual					  wibble-test-genrunner(1)

NAME

       wibble-test-genrunner - Code generator for wibble testsuites.

SYNOPSIS

       wibble-test-genrunner header <file>

       wibble-test-genrunner main <files>

DESCRIPTION

       The  program  generates	.cpp files that are then compiled and linked into a test program for running tests from .test.h files. Examples of
       such .test.h files may be found among wibble headers, eg. /usr/include/wibble/regexp.test.h.

       In the first form, the program processes a single header file (usually of the form foo.test.h) and produces a corresponding .cpp file to be
       compiled. In the second form, it takes as <files> all the .test.h headers and produces a single main.cpp which contains the main() function
       of the test program, which then runs all the tests in all the .test.h files. The generated source code is always written to standard output
       and it is left up to the user to redirect it to a meaningful location.

       The program currently has no options other than the two forms above. The program is intended to be run as part of build process of programs
       or libraries using the wibble testing framework. For convenient use from CMake, there is a test.cmake script under /usr/share/wibble,  that
       takes  care  of producing all the .cpp files (both per-header and the main one), compiling them and linking them into a single binary which
       executes the testsuite.

AUTHOR

       Petr Rockai <me@mornfall.net>

															  wibble-test-genrunner(1)
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