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More documentation for alt expressions #1092

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Oct 28, 2011
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More documentation for alt expressions #1092

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11 changes: 11 additions & 0 deletions doc/rust.texi
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Expand Up @@ -3402,6 +3402,17 @@ alt x @{
@}
@end example

Multiple alternative patterns may be joined with the @code{|} operator. A
range of values may be specified with @code{to}. For example:

@example
let message = alt x @{
0 | 1 @{ "not many" @}
2 to 9 @{ "a few" @}
_ @{ "lots" @}
@}
@end example


@node Ref.Expr.Alt.Type
@subsubsection Ref.Expr.Alt.Type
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