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auto: bool is not an integral type #4747

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auto: bool is not an integral type #4747

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2 changes: 1 addition & 1 deletion src/librustc/middle/ty.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2435,7 +2435,7 @@ pub fn type_structurally_contains_uniques(cx: ctxt, ty: t) -> bool {

pub fn type_is_integral(ty: t) -> bool {
match get(ty).sty {
ty_infer(IntVar(_)) | ty_int(_) | ty_uint(_) | ty_bool => true,
ty_infer(IntVar(_)) | ty_int(_) | ty_uint(_) => true,
_ => false
}
}
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3 changes: 3 additions & 0 deletions src/test/compile-fail/unop-neg-bool.rs
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@@ -0,0 +1,3 @@
fn main() {
-true; //~ ERROR cannot apply unary operator `-` to type `bool`
}