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Clean up E0744 explanation #75044

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Aug 2, 2020
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Clean up E0744 explanation #75044

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8 changes: 5 additions & 3 deletions src/librustc_error_codes/error_codes/E0744.md
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
Control-flow expressions are not allowed inside a const context.
A control-flow expression was used inside a const context.

At the moment, `if` and `match`, as well as the looping constructs `for`,
`while`, and `loop`, are forbidden inside a `const`, `static`, or `const fn`.
Erroneous code example:

```compile_fail,E0744
const _: i32 = {
Expand All @@ -13,6 +12,9 @@ const _: i32 = {
};
```

At the moment, `if` and `match`, as well as the looping constructs `for`,
`while`, and `loop`, are forbidden inside a `const`, `static`, or `const fn`.

This will be allowed at some point in the future, but the implementation is not
yet complete. See the tracking issue for [conditionals] or [loops] in a const
context for the current status.
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