I am a newbie so please help me a little. I am using Visual C++ 6.0
in order to compile a program given as an example of threads. I am
also copying the program below. But the problem is that the program
is giving errors of unresolved externals. Please tell me how to
change the settings of VC++ options. Here is the program:
#include
#include <iostream>
int count = 0;
boost::mutex mutex;
void increment_count()
{
boost::mutex::lock lock(mutex);
std::cout << "count = " << ++count << std::endl;
}
int main(int argc, char* argv[])
{
boost::thread_group threads;
for (int i = 0; i < 10; ++i)
threads.create_thread(&increment_count);
threads.join_all();
}
The errors i am getting are:
C:\Windows\Desktop\threadImI\imi.cpp(9) : error C2039: 'lock' : is
not a member of 'mutex'
c:\program files\microsoft visual studio\vc98
\include\boost\thread\mutex.hpp(35) : see declaration of 'mutex'
C:\Windows\Desktop\threadImI\imi.cpp(9) : error C2065: 'lock' :
undeclared identifier
C:\Windows\Desktop\threadImI\imi.cpp(9) : error C2146: syntax error :
missing ';' before identifier 'lock'
C:\Windows\Desktop\threadImI\imi.cpp(19) : warning C4508: 'main' :
function should return a value; 'void' return type assumed
Error executing cl.exe.
Creating browse info file...
threadImI.exe - 3 error(s), 3 warning(s)
