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Clean up E0648 explanation #73207

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Jun 11, 2020
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Clean up E0648 explanation #73207

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11 changes: 10 additions & 1 deletion src/librustc_error_codes/error_codes/E0648.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,15 @@
`export_name` attributes may not contain null characters (`\0`).
An `export_name` attribute contains null characters (`\0`).

Erroneous code example:

```compile_fail,E0648
#[export_name="\0foo"] // error: `export_name` may not contain null characters
pub fn bar() {}
```

To fix this error, remove the null characters:

```
#[export_name="foo"] // ok!
pub fn bar() {}
```