Module nanowasm::util [−] [src]

Misc numerical stuff and other handy functions.

Functions

copysign	fcopysign:
f32_is_signaling_nan	Returns whether or not the float is a signaling NaN. A signaling NaN has a format like: `s111 1111 1nxx xxxx xxxx xxxx xxxx xxxx` where the `x`'s represent a non-zero number (zero would be infinity) and `n` is 0. The sign bit `s` may be anything.
f64_is_signaling_nan	Same as `f32_is_signaling_nan()` for `f64`'s. The signaling-nan-bit is bit 51 instead of bit 22
round_to_int	Rounds the float into the given integer type.
truncate_to_int	Truncates the float into the given integer type.
u32_to_f32	A convenience function for doing a bitwise conversion of a u32 to an f32. We don't just use `f32::from_bits()` so that we can insert extra checking to filter out signaling NaN's, which are disallowed by wasm.
u64_to_f64	A convenience function for doing a bitwise conversion of a u64 to an f64 We don't just use `f64::from_bits()` so that we can insert extra checking to filter out signaling NaN's, which are disallowed by wasm.