std::env::VarError
Enum std::env::VarError
pub enum VarError {
NotPresent,
NotUnicode(OsString),
}
Possible errors from the env::var function-
Variants
NotPresentThe specified environment variable was not present in the current process's environment.
NotUnicode(OsString)The specified environment variable was found, but it did not contain valid unicode data. The found data is returned as a payload of this variant.
Trait Implementations
impl Debug for VarError
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
Formats the value using the given formatter.
impl PartialEq for VarError
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fn eq(&self, __arg_0: &VarError) -> bool
This method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, __arg_0: &VarError) -> bool
This method tests for !=.
impl Eq for VarError
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impl Clone for VarError
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fn clone(&self) -> VarError
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
impl Display for VarError
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Error for VarError
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fn description(&self) -> &str
A short description of the error. Read more
fn cause(&self) -> Option<&Error>
The lower-level cause of this error, if any. Read more
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/env/enum.VarError.html
