| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -Wno-constant-conversion %s |
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| 2 | // RUN: %clang_cc1 -fsyntax-only -verify -Wno-constant-conversion \ |
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| 3 | // RUN: -Wno-deprecated -Wdeprecated-increment-bool %s |
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| 4 | |
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| 5 | // Bool literals can be enum values. |
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| 6 | enum { |
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| 7 | ReadWrite = false, |
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| 8 | ReadOnly = true |
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| 9 | }; |
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| 10 | |
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| 11 | // bool cannot be decremented, and gives a warning on increment |
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| 12 | void test(bool b) |
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| 13 | { |
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| 14 | ++b; // expected-warning {{incrementing expression of type bool is deprecated}} |
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| 15 | b++; // expected-warning {{incrementing expression of type bool is deprecated}} |
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| 16 | --b; // expected-error {{cannot decrement expression of type bool}} |
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| 17 | b--; // expected-error {{cannot decrement expression of type bool}} |
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| 18 | |
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| 19 | bool *b1 = (int *)0; // expected-error{{cannot initialize}} |
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| 20 | } |
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| 21 | |
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| 22 | // static_assert_arg_is_bool(x) compiles only if x is a bool. |
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| 23 | template <typename T> |
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| 24 | void static_assert_arg_is_bool(T x) { |
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| 25 | bool* p = &x; |
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| 26 | } |
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| 27 | |
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| 28 | void test2() { |
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| 29 | int n = 2; |
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| 30 | static_assert_arg_is_bool(n && 4); // expected-warning {{use of logical '&&' with constant operand}} \ |
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| 31 | // expected-note {{use '&' for a bitwise operation}} \ |
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| 32 | // expected-note {{remove constant to silence this warning}} |
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| 33 | static_assert_arg_is_bool(n || 5); // expected-warning {{use of logical '||' with constant operand}} \ |
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| 34 | // expected-note {{use '|' for a bitwise operation}} |
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| 35 | } |
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| 36 | |
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