How Error Handling Works in IPWorks C++ Editions

In C++ editions of /n software libraries, all class methods return an integer value that indicates whether or not the method call succeeded. If a method completes without error, the return value will be 0.

All other return codes indicate an error has occurred, in which case GetLastError() will contain more information. Here is a simple example of common error-handling logic in C++:

int ret_code;
ret_code = http1.Get(hostName);
if (ret_code)
{
  printf("Error: %s\n", http1.GetLastError());
}

The above example uses the HTTP class from IPWorks, but all C++ components support the same flow.