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doc: std::env::var: Returns None for names with '=' or NUL byte #128902

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Aug 19, 2024
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doc: std::env::var: Returns None for names with '=' or NUL byte #128902

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doc: std::env::var: Returns None for names with '=' or NUL byte
evanj Aug 9, 2024
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code review improvements
evanj Aug 18, 2024
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11 changes: 5 additions & 6 deletions library/std/src/env.rs
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Expand Up @@ -198,13 +198,12 @@ impl fmt::Debug for VarsOs {
///
/// # Errors
///
/// This function will return an error if the environment variable isn't set.
/// Returns [`VarError::NotPresent`] if:
/// - The variable is not set.
/// - The variable's name contains an equal sign or NUL (`'='` or `'\0'`).
///
/// This function may return an error if the environment variable's name contains
/// the equal sign character (`=`) or the NUL character.
///
/// This function will return an error if the environment variable's value is
/// not valid Unicode. If this is not desired, consider using [`var_os`].
/// Returns [`VarError::NotUnicode`] if the variable's value is not valid
/// Unicode. If this is not desired, consider using [`var_os`].
///
/// # Examples
///
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