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Add a potential cause raising ParseIntError. #48738

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Merged
merged 4 commits into from
Mar 9, 2018
Merged

Add a potential cause raising ParseIntError. #48738

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c68440c
Add a potential cause raising `ParseIntError`.
Songbird0 Mar 4, 2018
247fc38
Tidy error: add a new line
Songbird0 Mar 4, 2018
ef1aae1
Modify wording and remove useless whitespaces.
Songbird0 Mar 5, 2018
6d71aa4
Fix spelling error for `whitespaces`.
Songbird0 Mar 5, 2018
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7 changes: 7 additions & 0 deletions src/libcore/num/mod.rs
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Expand Up @@ -3846,6 +3846,13 @@ fn from_str_radix<T: FromStrRadixHelper>(src: &str, radix: u32) -> Result<T, Par
/// This error is used as the error type for the `from_str_radix()` functions
/// on the primitive integer types, such as [`i8::from_str_radix`].
///
/// # Potential causes
///
/// Among other causes, `ParseIntError` can be thrown because of leading or trailing whitespace
/// in the string e.g. when it is obtained from the standard input.
/// Using the [`str.trim()`] method ensures that no whitespace remains before parsing.
///
/// [`str.trim()`]: ../../std/primitive.str.html#method.trim
/// [`i8::from_str_radix`]: ../../std/primitive.i8.html#method.from_str_radix
#[derive(Debug, Clone, PartialEq, Eq)]
#[stable(feature = "rust1", since = "1.0.0")]
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