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Rollup merge of #37757 - rust-lang:E0002-precision, r=brson 

Uncomment some long error explanation

Retry of #37058.

r? @steveklabnik
cc @brson
This commit is contained in:
Guillaume Gomez 2016-11-17 19:40:57 +01:00 committed by GitHub
parent 9ed3797fb6 e4a9d834af
commit 5c8824da07
1 changed files with 6 additions and 4 deletions
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10
src/librustc_const_eval/diagnostics.rs
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@ -40,7 +40,9 @@ Ensure the ordering of the match arm is correct and remove any superfluous
arms.
"##,
/*E0002: r##"
E0002: r##"
## Note: this error code is no longer emitted by the compiler.
This error indicates that an empty match expression is invalid because the type
it is matching on is non-empty (there exist values of this type). In safe code
it is impossible to create an instance of an empty type, so empty match
@ -68,10 +70,11 @@ fn foo(x: Option<String>) {
}
}
```
"##,*/
"##,
E0003: r##"
## Note: this error code is no longer emitted by the compiler.
/*E0003: r##"
Not-a-Number (NaN) values cannot be compared for equality and hence can never
match the input to a match expression. So, the following will not compile:
@ -98,7 +101,6 @@ match number {
}
```
"##,
*/
E0004: r##"
This error indicates that the compiler cannot guarantee a matching pattern for