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implement LossyFrom<integers> for floats

This commit is contained in:
Trevor Spiteri 2019-08-02 16:25:38 +02:00
parent 225a0e8307
commit f2099cc067
1 changed files with 31 additions and 0 deletions
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31
src/convert.rs
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@ -17,6 +17,7 @@ use core::ops::{Add, Sub};
use frac::{IsGreaterOrEqual, IsLessOrEqual, True, Unsigned, U0, U1, U128, U16, U2, U32, U64, U8};
#[cfg(feature = "f16")]
use half::f16;
use sealed::SealedInt;
use traits::{FromFixed, LossyFrom};
use {
FixedI128, FixedI16, FixedI32, FixedI64, FixedI8, FixedU128, FixedU16, FixedU32, FixedU64,
@ -531,6 +532,36 @@ fixed_to_float_lossy! { FixedU32(U32) }
fixed_to_float_lossy! { FixedU64(U64) }
fixed_to_float_lossy! { FixedU128(U128) }
macro_rules! int_to_float_lossy {
($Int:ident -> $Float:ident) => {
impl LossyFrom<$Int> for $Float {
#[inline]
fn lossy_from(src: $Int) -> $Float {
<$Int as SealedInt>::to_repr_fixed(src).to_float()
}
}
};
($Int:ident) => {
#[cfg(feature = "f16")]
int_to_float_lossy! { $Int -> f16 }
int_to_float_lossy! { $Int -> f32 }
int_to_float_lossy! { $Int -> f64 }
};
}
int_to_float_lossy! { i8 }
int_to_float_lossy! { i16 }
int_to_float_lossy! { i32 }
int_to_float_lossy! { i64 }
int_to_float_lossy! { i128 }
int_to_float_lossy! { isize }
int_to_float_lossy! { u8 }
int_to_float_lossy! { u16 }
int_to_float_lossy! { u32 }
int_to_float_lossy! { u64 }
int_to_float_lossy! { u128 }
int_to_float_lossy! { usize }
#[cfg_attr(feature = "cargo-clippy", allow(clippy::float_cmp))]
#[cfg(test)]
mod tests {