Defining _GLIBCXX_DEBUG introduces a dependency on this method. Implement it so that _GLIBCXX_DEBUG can be used.
Avoid open-coded for loop.
For each link given as http://, verify that the site is accessible over https:// and, if so, switch to it. These domains were converted: * llvm.org * clang.llvm.org * en.cppreference.com * www.dxx-rebirth.com * www.libsdl.org * www.scons.org