https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66346
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
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Component|c++ |libstdc++
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
In C, log10 is a function that takes a double, and log10l takes a long double.
In C++, cmath provides overloads of std::log10. You did not include math.h, so
you are not allowed to use ::log10. And then libstdc++ has a long-standing bug
where it does not overload standard functions in the global namespace.
