Comment 13 for bug 1831385

Nope, ceilf comes from C, which has no overloading.

C++ doesn't need separate names for ceil, ceilf and ceill, so you just have std::ceil.

The fact std::ceilf exists at all is just for consistency with C, not because "the library designers" considered it important. That's why it wasn't even mentioned in C++98, C++03, C++11, or C++14.

We will add all the functions listed above in this bug, because they're meant to be there, but they are not essential. You can use std::ceil((float)x) or ::ceilf(x) as a workaround with identical semantics.