Enum std::env::VarError 1.0.0
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pub enum VarError { NotPresent, NotUnicode(OsString), }
1.0.0
Possible errors from the env::var
method.
Variants
NotPresent | The specified environment variable was not present in the current process's environment. | |
NotUnicode | 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 Display for VarError
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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.
Derived Implementations
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 Eq for VarError
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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 !=
.