C++ code, when sophisticated template meta programming techniques are used, can be as fast as tuned C code, and can beat any language in terms of speed with the exception of hand-tuned assembly. However, techniques like expression templates, automatic loop unrolling, template specialization, and static polymorphism require a VERY high degree of sophistication from the programmer. In some sense, the programmer is forced to be a compiler. There are some individuals that, despite this demand, can be highly productive. The others wallow in complicated syntax, horrible type errors, and difficult to trace run-time errors. Unless speed is absolutely essential, C++ should be avoided at all costs.