Constant proptest::num::f32::QUIET_NAN [−] [src]

pub const QUIET_NAN: Any = Any(<FloatTypes>::QUIET_NAN)

Generates "Quiet NaN" floats.

Operations on quiet NaNs generally simply propagate the NaN rather than invoke any exception mechanism.

Note that there is currently no SIGNALING_NAN is the question of whether generation of signaling NaNs is safe is currently uncertain.

The payload of the NaN is uniformly distributed over the possible values which safe Rust allows, including the sign bit (as controlled by POSITIVE and NEGATIVE). Note however that as of Rust 1.23.0, this constitutes only one particular payload due to apparent issues with particular MIPS and PA-RISC processors which fail to implement IEEE 754-2008 correctly.