If it was in a program, it would say while variable, object, or enumeration succeed does not equal function try, repeat the loop. However, the syntax doesnt look like C++. but it's sort of close...
Most people would read it as if success is not equal to try - but the actual C++ test is carried out on the success variable - in other words - if success is not true thengo round the loop again.
It is not actually an equality test between success and the try() .