For some of these functions and most targets this changes nothing, either because long double and double are not equivalent or because llvm did function deduplication.
But e.g. on aarch64-windows-gnu, ucrt provides hypot, but not hypotl. With this PR hypotl calls hypot from ucrt instead of including the std.math.hypot implementation in zigc.
I did not change very trivial functions (like nanl), because a function call would probably make this function more complex.
EDIT: This PR also removes some code which would only be reached if c_longdouble had only 32 or 16 bits. See the comments below.
For some of these functions and most targets this changes nothing, either because `long double` and `double` are not equivalent or because llvm did function deduplication.
But e.g. on `aarch64-windows-gnu`, ucrt provides `hypot`, but not `hypotl`. With this PR `hypotl` calls `hypot` from ucrt instead of including the `std.math.hypot` implementation in zigc.
I did not change very trivial functions (like `nanl`), because a function call would probably make this function more complex.
**EDIT**: This PR also removes some code which would only be reached if `c_longdouble` had only `32` or `16` bits. See the comments below.