&gt;&gt; Not true any more for C++, since the new C++ standard 5 years ago, which contains cross-platform standard library tools for multithreading.<p>&gt;Is this standard well supported by now? I&#x27;ll change it to &#x27;C&#x27; in any case.<p>The standard is 5 years old this year and nearly every major compiler has supported it for years, and the big ones supported it before the standard was officially in place. So changing it to C would be much more accurate.<p>That&#x27;s not to say that each platform&#x27;s unique tools, i.e. Apple&#x27;s own GCD for multithreading, are not still available and widely-used. But C++ lets you not worry about platform-specific multithreading any more, and it&#x27;s quite nice! In addition to multithreading primitives in the standard, there are also higher-level task-based tools like futures and promises that are cross-platform also.