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swift
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refs/tags/swift-DEVELOPMENT-SNAPSHOT-2017-04-09-a
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.
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test
/
SILOptimizer
/
switch.swift
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// RUN: %target-swift-frontend -emit-sil %s -verify
func non_fully_covered_switch
(
x
:
Int
)
->
Int
{
var
x
=
x
switch
x
{
// expected-error{{switch must be exhaustive}}
case
0
:
x
+=
1
case
3
:
x
-=
1
}
return
x
}