60 lines
2.6 KiB
C
60 lines
2.6 KiB
C
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// RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-apple-darwin10 %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -verify -triple x86_64-apple-darwin10 %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -verify -triple x86_64-apple-darwin10 -std=c++98 %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -verify -triple x86_64-apple-darwin10 -std=c++11 %s
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// rdar://11577384
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// rdar://13423975
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int f(int i) {
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switch (i) {
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case 2147483647 + 2:
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#if (__cplusplus <= 199711L) // C or C++03 or earlier modes
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// expected-warning@-2 {{overflow in expression; result is -2147483647 with type 'int'}}
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#else
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// expected-error@-4 {{case value is not a constant expression}} \
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// expected-note@-4 {{value 2147483649 is outside the range of representable values of type 'int'}}
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#endif
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return 1;
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case 9223372036854775807L * 4:
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#if (__cplusplus <= 199711L)
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// expected-warning@-2 {{overflow in expression; result is -4 with type 'long'}}
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#else
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// expected-error@-4 {{case value is not a constant expression}} \
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// expected-note@-4 {{value 36893488147419103228 is outside the range of representable values of type 'long'}}
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#endif
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return 2;
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case (123456 *789012) + 1:
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#if (__cplusplus <= 199711L)
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// expected-warning@-2 {{overflow in expression; result is -1375982336 with type 'int'}}
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#else
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// expected-error@-4 {{case value is not a constant expression}} \
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// expected-note@-4 {{value 97408265472 is outside the range of representable values of type 'int'}}
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#endif
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return 3;
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case (2147483647*4)/4:
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#if (__cplusplus <= 199711L)
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// expected-warning@-2 {{overflow in expression; result is -4 with type 'int'}}
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#else
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// expected-error@-4 {{case value is not a constant expression}} \
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// expected-note@-4 {{value 8589934588 is outside the range of representable values of type 'int'}}
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#endif
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case (2147483647*4)%4:
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#if (__cplusplus <= 199711L)
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// expected-warning@-2 {{overflow in expression; result is -4 with type 'int'}}
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#else
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// expected-error@-4 {{case value is not a constant expression}} \
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// expected-note@-4 {{value 8589934588 is outside the range of representable values of type 'int'}}
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#endif
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return 4;
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case 2147483647:
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return 0;
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}
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return (i, 65537) * 65537; // expected-warning {{overflow in expression; result is 131073 with type 'int'}} \
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// expected-warning {{expression result unused}}
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}
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// rdar://18405357
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unsigned long long l = 65536 * 65536; // expected-warning {{overflow in expression; result is 0 with type 'int'}}
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unsigned long long l2 = 65536 * (unsigned)65536;
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unsigned long long l3 = 65536 * 65536ULL;
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