pub unsafe extern "rust-intrinsic" fn float_to_int_unchecked<Float: Copy, Int: Copy>(
    value: Float
) -> Int
🔬This is a nightly-only experimental API. (core_intrinsics)
Expand description

使用 LLVM 的 fptoui/fptosi 进行转换,对于越界的值可能会返回 undef (https://github.com/rust-lang/rust/issues/10184)

稳定为 f32::to_int_uncheckedf64::to_int_unchecked