| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-apple-darwin10 %s |
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| 2 | // RUN: %clang_cc1 -x c++ -fsyntax-only -verify -triple x86_64-apple-darwin10 %s |
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| 3 | // RUN: %clang_cc1 -x c++ -fsyntax-only -verify -triple x86_64-apple-darwin10 -std=c++98 %s |
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| 4 | // RUN: %clang_cc1 -x c++ -fsyntax-only -verify -triple x86_64-apple-darwin10 -std=c++11 %s |
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| 5 | // rdar://11577384 |
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| 6 | // rdar://13423975 |
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| 7 | |
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| 8 | int f(int i) { |
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| 9 | switch (i) { |
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| 10 | case 2147483647 + 2: |
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| 11 | #if (__cplusplus <= 199711L) // C or C++03 or earlier modes |
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| 12 | // expected-warning@-2 {{overflow in expression; result is -2147483647 with type 'int'}} |
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| 13 | #else |
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| 14 | // expected-error@-4 {{case value is not a constant expression}} \ |
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| 15 | // expected-note@-4 {{value 2147483649 is outside the range of representable values of type 'int'}} |
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| 16 | #endif |
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| 17 | return 1; |
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| 18 | case 9223372036854775807L * 4: |
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| 19 | #if (__cplusplus <= 199711L) |
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| 20 | // expected-warning@-2 {{overflow in expression; result is -4 with type 'long'}} |
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| 21 | #else |
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| 22 | // expected-error@-4 {{case value is not a constant expression}} \ |
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| 23 | // expected-note@-4 {{value 36893488147419103228 is outside the range of representable values of type 'long'}} |
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| 24 | #endif |
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| 25 | return 2; |
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| 26 | case (123456 *789012) + 1: |
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| 27 | #if (__cplusplus <= 199711L) |
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| 28 | // expected-warning@-2 {{overflow in expression; result is -1375982336 with type 'int'}} |
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| 29 | #else |
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| 30 | // expected-error@-4 {{case value is not a constant expression}} \ |
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| 31 | // expected-note@-4 {{value 97408265472 is outside the range of representable values of type 'int'}} |
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| 32 | #endif |
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| 33 | return 3; |
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| 34 | case (2147483647*4)/4: |
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| 35 | #if (__cplusplus <= 199711L) |
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| 36 | // expected-warning@-2 {{overflow in expression; result is -4 with type 'int'}} |
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| 37 | #else |
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| 38 | // expected-error@-4 {{case value is not a constant expression}} \ |
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| 39 | // expected-note@-4 {{value 8589934588 is outside the range of representable values of type 'int'}} |
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| 40 | #endif |
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| 41 | case (2147483647*4)%4: |
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| 42 | #if (__cplusplus <= 199711L) |
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| 43 | // expected-warning@-2 {{overflow in expression; result is -4 with type 'int'}} |
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| 44 | #else |
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| 45 | // expected-error@-4 {{case value is not a constant expression}} \ |
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| 46 | // expected-note@-4 {{value 8589934588 is outside the range of representable values of type 'int'}} |
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| 47 | #endif |
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| 48 | return 4; |
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| 49 | case 2147483647: |
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| 50 | return 0; |
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| 51 | } |
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| 52 | return (i, 65537) * 65537; // expected-warning {{overflow in expression; result is 131073 with type 'int'}} \ |
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| 53 | // expected-warning {{expression result unused}} |
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| 54 | } |
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| 55 | |
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| 56 | // rdar://18405357 |
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| 57 | unsigned long long l = 65536 * 65536; // expected-warning {{overflow in expression; result is 0 with type 'int'}} |
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| 58 | unsigned long long l2 = 65536 * (unsigned)65536; |
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| 59 | unsigned long long l3 = 65536 * 65536ULL; |
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| 60 | |
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