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