constants.c revision 34f3bcf7f2907f618f7a10d919bda47e53db60dd 
1// RUN: %clang_cc1 -fsyntax-only -verify -pedantic -trigraphs %s
2
3int x = 000000080;  // expected-error {{invalid digit}}
4
5int y = 0000\
600080;             // expected-error {{invalid digit}}
7
8
9
10float X = 1.17549435e-38F;
11float Y = 08.123456;
12
13// PR2252
14#if -0x8000000000000000  // should not warn.
15#endif
16#if -01000000000000000000000  // should not warn.
17#endif
18#if 9223372036854775808 // expected-warning {{integer constant is larger than the largest signed integer type}}
19#endif
20#if 0x10000000000000000 // expected-error {{integer constant is larger than the largest unsigned integer type}}
21#endif
22
23int c[] = {
24  'df',   // expected-warning {{multi-character character constant}}
25  '\t',
26  '\\
27t',
28  '??!',  // expected-warning {{trigraph converted to '|' character}}
29  'abcd'  // expected-warning {{multi-character character constant}}
30};
31
32//  PR4499
33int m0 = '0';
34int m1 = '\\\''; // expected-warning {{multi-character character constant}}
35int m2 = '\\\\'; // expected-warning {{multi-character character constant}}
36int m3 = '\\\
37';
38
39
40#pragma clang diagnostic ignored "-Wmultichar"
41
42int d = 'df'; // no warning.
43int e = 'abcd';  // still warn: expected-warning {{multi-character character constant}}
44
45#pragma clang diagnostic ignored "-Wfour-char-constants"
46
47int f = 'abcd';  // ignored.
48
49// rdar://problem/6974641
50float t0[] = {
51  1.9e20f,
52  1.9e-20f,
53  1.9e50f,   // expected-warning {{too large}}
54  1.9e-50f,  // expected-warning {{too small}}
55  -1.9e20f,
56  -1.9e-20f,
57  -1.9e50f,  // expected-warning {{too large}}
58  -1.9e-50f  // expected-warning {{too small}}
59};
60double t1[] = {
61  1.9e50,
62  1.9e-50,
63  1.9e500,   // expected-warning {{too large}}
64  1.9e-500,  // expected-warning {{too small}}
65  -1.9e50,
66  -1.9e-50,
67  -1.9e500,  // expected-warning {{too large}}
68  -1.9e-500  // expected-warning {{too small}}
69};
70
71// PR7888
72double g = 1e100000000; // expected-warning {{too large}}
73
74char h = '\u1234'; // expected-error {{character too large for enclosing character literal type}}
75