41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -Wsigned-enum-bitfield -verify %s --std=c++11
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// Enums used in bitfields with no explicitly specified underlying type.
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void test0() {
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enum E { E1, E2 };
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enum F { F1, F2 };
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struct { E e1 : 1; E e2; F f1 : 1; F f2; } s;
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s.e1 = E1; // expected-warning {{enums in the Microsoft ABI are signed integers by default; consider giving the enum 'E' an unsigned underlying type to make this code portable}}
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s.f1 = F1; // expected-warning {{enums in the Microsoft ABI are signed integers by default; consider giving the enum 'F' an unsigned underlying type to make this code portable}}
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s.e2 = E2;
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s.f2 = F2;
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}
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// Enums used in bitfields with an explicit signed underlying type.
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void test1() {
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enum E : signed { E1, E2 };
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enum F : long { F1, F2 };
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struct { E e1 : 1; E e2; F f1 : 1; F f2; } s;
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s.e1 = E1;
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s.f1 = F1;
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s.e2 = E2;
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s.f2 = F2;
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}
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// Enums used in bitfields with an explicitly unsigned underlying type.
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void test3() {
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enum E : unsigned { E1, E2 };
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enum F : unsigned long { F1, F2 };
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struct { E e1 : 1; E e2; F f1 : 1; F f2; } s;
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s.e1 = E1;
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s.f1 = F1;
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s.e2 = E2;
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s.f2 = F2;
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}
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