https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62318
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> --- I don't understand your concern, you don't need anyone's permission to use a published algorithm. A specific implementation of the algorithm would be covered by copyright, but not the abstract algorithm. If you want to contribute code to GCC then there are legal prerequisites (see https://gcc.gnu.org/contribute.html) but that's not to do with permission to use an algorithm. If you wanted to contribute an implementation you would need to meet those prerequisites. Glibc has similar requirements. Otherwise just be happy that glibc already does better than a linear search and libstdc++ will be implementing std::search soon.
