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Remove Errors section from var_os docs #109894

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merged 6 commits into from
Apr 12, 2023
Merged

Remove Errors section from var_os docs #109894

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9f1a3a1
Update env.rs
fleetingbytes Apr 3, 2023
c252f0d
add situation where var_os returns None
fleetingbytes Apr 3, 2023
5618c8e
remove self-reference in var_os doc
fleetingbytes Apr 3, 2023
a450557
Remove redundant empty line
fleetingbytes Apr 3, 2023
4cb73cc
Preserve potential mood for equal or NUL sign
fleetingbytes Apr 3, 2023
7d26963
Break up long first paragraph
fleetingbytes Apr 11, 2023
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17 changes: 5 additions & 12 deletions library/std/src/env.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -236,21 +236,14 @@ fn _var(key: &OsStr) -> Result<String, VarError> {
}

/// Fetches the environment variable `key` from the current process, returning
/// [`None`] if the variable isn't set or there's another error.
/// [`None`] if the variable isn't set or if there is another error.
///
/// Note that the method will not check if the environment variable
/// is valid Unicode. If you want to have an error on invalid UTF-8,
/// use the [`var`] function instead.
///
/// # Errors
///
/// This function returns an error if the environment variable isn't set.
///
/// This function may return an error if the environment variable's name contains
/// It may return `None` if the environment variable's name contains
/// the equal sign character (`=`) or the NUL character.
///
/// This function may return an error if the environment variable's value contains
/// the NUL character.
/// Note that this function will not check if the environment variable
/// is valid Unicode. If you want to have an error on invalid UTF-8,
/// use the [`var`] function instead.
///
/// # Examples
///
Expand Down