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The C standard library function fmodf is not guaranteed to be in namespace std, and in fact is not with a default Ubuntu 24.04 installation, leading to the following compile error:
```console
Change Dir: '/vcpkg/buildtrees/vcpkg-ci-orange-math/x64-linux-dbg'
Run Build Command(s): /vcpkg/downloads/tools/ninja/1.12.1-linux/ninja -v -v -j33
[1/2] /usr/bin/c++ -DOMATH_SUPRESS_SAFETY_CHECKS -DOMATH_VERSION=\"3.5.0\" -isystem /vcpkg/installed/x64-linux/include -fPIC -g -std=gnu++23 -MD -MT CMakeFiles/main.dir/main.cpp.o -MF CMakeFiles/main.dir/main.cpp.o.d -o CMakeFiles/main.dir/main.cpp.o -c /vcpkg/scripts/test_ports/vcpkg-ci-orange-math/project/main.cpp
FAILED: CMakeFiles/main.dir/main.cpp.o
/usr/bin/c++ -DOMATH_SUPRESS_SAFETY_CHECKS -DOMATH_VERSION=\"3.5.0\" -isystem /vcpkg/installed/x64-linux/include -fPIC -g -std=gnu++23 -MD -MT CMakeFiles/main.dir/main.cpp.o -MF CMakeFiles/main.dir/main.cpp.o.d -o CMakeFiles/main.dir/main.cpp.o -c /vcpkg/scripts/test_ports/vcpkg-ci-orange-math/project/main.cpp
In file included from /vcpkg/installed/x64-linux/include/omath/omath.hpp:22,
from /vcpkg/scripts/test_ports/vcpkg-ci-orange-math/project/main.cpp:1:
/vcpkg/installed/x64-linux/include/omath/color.hpp: In member function ‘constexpr omath::Hsv omath::Color::to_hsv() const’:
/vcpkg/installed/x64-linux/include/omath/color.hpp:98:45: error: ‘fmodf’ is not a member of ‘std’; did you mean ‘modf’?
98 | hsv_data.hue = 60.f * (std::fmodf(((green - blue) / delta), 6.f));
| ^~~~~
| modf
ninja: build stopped: subcommand failed.
```
Only the 'sufficient additional overloads' of `fmod` are guaranteed to be in `std`. Since this is clearly intended to call the (float, float) overload, explicitly cast `((green - blue) / delta)` (which is a `double`) to `float` and call the name in `std` as suggested by the diagnostic.