| .. _float-ops: |
| |
| Native float operations |
| ======================== |
| |
| These ``float`` operations have fast, optimized implementations. Other |
| floating point operations use generic implementations that are often |
| slower. |
| |
| Construction |
| ------------ |
| |
| * Float literal |
| * ``float(x: int)`` |
| * ``float(x: i64)`` |
| * ``float(x: i32)`` |
| * ``float(x: i16)`` |
| * ``float(x: u8)`` |
| * ``float(x: str)`` |
| * ``float(x: float)`` (no-op) |
| |
| Operators |
| --------- |
| |
| * Arithmetic (``+``, ``-``, ``*``, ``/``, ``//``, ``%``) |
| * Comparisons (``==``, ``!=``, ``<``, etc.) |
| * Augmented assignment (``x += y``, etc.) |
| |
| Functions |
| --------- |
| |
| * ``int(f)`` |
| * ``i64(f)`` (convert to 64-bit signed integer) |
| * ``i32(f)`` (convert to 32-bit signed integer) |
| * ``i16(f)`` (convert to 16-bit signed integer) |
| * ``u8(f)`` (convert to 8-bit unsigned integer) |
| * ``abs(f)`` |
| * ``math.sin(f)`` |
| * ``math.cos(f)`` |
| * ``math.tan(f)`` |
| * ``math.sqrt(f)`` |
| * ``math.exp(f)`` |
| * ``math.log(f)`` |
| * ``math.floor(f)`` |
| * ``math.ceil(f)`` |
| * ``math.fabs(f)`` |
| * ``math.pow(x, y)`` |
| * ``math.copysign(x, y)`` |
| * ``math.isinf(f)`` |
| * ``math.isnan(f)`` |
