I'm new to using pthreads-win32 (SNAPSHOT 2002-03-02), and I have to port a program from Linux to Windows 2000. A bug has somehow crept into my code, and I've narrowed the problem area down to a code fragment similar to the following: #include #include #include using namespace std; int main() { /** * We want to check wether a semaphore can be initialised * with a value. */ // a semaphore sem_t psem; // initialise it with value 10 assert(sem_init(&psem,0,10) == 0); // ASSERT NO 1 // if the semaphore initialisation was ok, the sem // should now have the value 10 int ret = 0; assert(sem_getvalue(&psem,&ret) == 0); // ASSERT NO 2 // if no errors occured then value is now in the // integer ret cout << endl << "sem_getvalue() returns value " << ret << endl << flush; return 0; } I'm using MS VC++ 6.0, and I'm linking with the precompiled pthreadVCE.lib library. At runtime, the first assert() passes OK, but second fails. I have no idea why this fails (hopefully it's simply a newby error, and not a bug in the pthreads-win32 lib), but it does. Thanks Rob