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division fix

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NikVolf
2017-06-05 13:56:08 +03:00
parent d21b2a556b
commit ede0de1247
3 changed files with 14 additions and 7 deletions
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16
src/interpreter/value.rs
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@ -68,7 +68,7 @@ pub trait ArithmeticOps<T> {
/// Multiply two values.
fn mul(self, other: T) -> T;
/// Divide two values.
fn div(self, other: T) -> T;
fn div(self, other: T) -> Result<T, Error>;
}
/// Integer value.
@ -84,7 +84,7 @@ pub trait Integer<T>: ArithmeticOps<T> {
/// Get right bit rotation result.
fn rotr(self, other: T) -> T;
/// Get division remainder.
fn rem(self, other: T) -> T;
fn rem(self, other: T) -> Result<T, Error>;
}
/// Float-point value.
@ -541,7 +541,10 @@ macro_rules! impl_integer_arithmetic_ops {
fn add(self, other: $type) -> $type { self.wrapping_add(other) }
fn sub(self, other: $type) -> $type { self.wrapping_sub(other) }
fn mul(self, other: $type) -> $type { self.wrapping_mul(other) }
fn div(self, other: $type) -> $type { self.wrapping_div(other) }
fn div(self, other: $type) -> Result<$type, Error> {
if other == 0 { Err(Error::Value("Division by zero".to_owned())) }
else { Ok(self.wrapping_div(other)) }
}
}
}
}
@ -557,7 +560,7 @@ macro_rules! impl_float_arithmetic_ops {
fn add(self, other: $type) -> $type { self + other }
fn sub(self, other: $type) -> $type { self - other }
fn mul(self, other: $type) -> $type { self * other }
fn div(self, other: $type) -> $type { self / other }
fn div(self, other: $type) -> Result<$type, Error> { Ok(self / other) }
}
}
}
@ -573,7 +576,10 @@ macro_rules! impl_integer {
fn count_ones(self) -> $type { self.count_ones() as $type }
fn rotl(self, other: $type) -> $type { self.rotate_left(other as u32) }
fn rotr(self, other: $type) -> $type { self.rotate_right(other as u32) }
fn rem(self, other: $type) -> $type { self.wrapping_rem(other) }
fn rem(self, other: $type) -> Result<$type, Error> {
if other == 0 { Err(Error::Value("Division by zero".to_owned())) }
else { Ok(self.wrapping_rem(other)) }
}
}
}
}