diff options
Diffstat (limited to 'src/libcore/num')
| -rw-r--r-- | src/libcore/num/mod.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs index 98b5fcd3ee4..fb40bccee6a 100644 --- a/src/libcore/num/mod.rs +++ b/src/libcore/num/mod.rs @@ -4442,6 +4442,9 @@ macro_rules! try_from_unbounded { impl TryFrom<$source> for $target { type Error = TryFromIntError; + /// Try to create the target number type from a source + /// number type. This returns an error if the source value + /// is outside of the range of the target type. #[inline] fn try_from(value: $source) -> Result<Self, Self::Error> { Ok(value as $target) @@ -4457,6 +4460,9 @@ macro_rules! try_from_lower_bounded { impl TryFrom<$source> for $target { type Error = TryFromIntError; + /// Try to create the target number type from a source + /// number type. This returns an error if the source value + /// is outside of the range of the target type. #[inline] fn try_from(u: $source) -> Result<$target, TryFromIntError> { if u >= 0 { @@ -4476,6 +4482,9 @@ macro_rules! try_from_upper_bounded { impl TryFrom<$source> for $target { type Error = TryFromIntError; + /// Try to create the target number type from a source + /// number type. This returns an error if the source value + /// is outside of the range of the target type. #[inline] fn try_from(u: $source) -> Result<$target, TryFromIntError> { if u > (<$target>::max_value() as $source) { @@ -4495,6 +4504,9 @@ macro_rules! try_from_both_bounded { impl TryFrom<$source> for $target { type Error = TryFromIntError; + /// Try to create the target number type from a source + /// number type. This returns an error if the source value + /// is outside of the range of the target type. #[inline] fn try_from(u: $source) -> Result<$target, TryFromIntError> { let min = <$target>::min_value() as $source; |