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// RUN: %clang_cc1 %s -verify
// expected-no-diagnostics
namespace PromotionVersusMutation {
typedef unsigned Unsigned;
typedef signed Signed;
struct T { unsigned n : 2; } t;
typedef __typeof__(t.n) Unsigned; // Bitfield is unsigned
typedef __typeof__(+t.n) Signed; // ... but promotes to signed.
typedef __typeof__(t.n + 0) Signed; // Arithmetic promotes.
typedef __typeof__(t.n = 0) Unsigned; // Assignment produces an lvalue...
typedef __typeof__(t.n += 0) Unsigned;
typedef __typeof__(t.n *= 0) Unsigned;
typedef __typeof__(+(t.n = 0)) Signed; // ... which is a bit-field.
typedef __typeof__(+(t.n += 0)) Signed;
typedef __typeof__(+(t.n *= 0)) Signed;
typedef __typeof__(++t.n) Unsigned; // Increment is equivalent to compound-assignment.
typedef __typeof__(--t.n) Unsigned;
typedef __typeof__(+(++t.n)) Signed;
typedef __typeof__(+(--t.n)) Signed;
typedef __typeof__(t.n++) Unsigned; // Post-increment's result has the type
typedef __typeof__(t.n--) Unsigned; // of the operand...
typedef __typeof__(+(t.n++)) Unsigned; // ... and is not a bit-field (because
typedef __typeof__(+(t.n--)) Unsigned; // it's not a glvalue).
}
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