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19 lines
594 B
Markdown
19 lines
594 B
Markdown
## The source() of Errors
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Sometimes you want to inspect the `source()` of an `Error`.
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`chainerror` implements `std::error::Error::source()`, so you can get the cause of an error.
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~~~rust
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use crate::chainerror::*;
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{{#include ../examples/tutorial5.rs:2:}}
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# #[allow(dead_code)]
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# mod chainerror {
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{{#includecomment ../src/lib.rs}}
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# }
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~~~
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Note, that we changed the output of the error in `main()` from `Debug` to `Display`, so we don't see
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the error backtrace with filename and line number.
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To enable the `Display` backtrace, you have to enable the feature `display-cause` for `chainerror`.
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