constants.c revision 091f23f1d6d4bcffd6641cda72a6831e08c02ea7 
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
17
18int c[] = {
19  'df',   // expected-warning {{multi-character character constant}}
20  '\t',
21  '\\
22t',
23  '??!',  // expected-warning {{trigraph converted to '|' character}}
24  'abcd'  // expected-warning {{multi-character character constant}}
25};
26
27//  PR4499
28int m0 = '0';
29int m1 = '\\\''; // expected-warning {{multi-character character constant}}
30int m2 = '\\\\'; // expected-warning {{multi-character character constant}}
31int m3 = '\\\
32';
33
34
35#pragma clang diagnostic ignored "-Wmultichar"
36
37int d = 'df'; // no warning.
38int e = 'abcd';  // still warn: expected-warning {{multi-character character constant}}
39
40#pragma clang diagnostic ignored "-Wfour-char-constants"
41
42int f = 'abcd';  // ignored.
43
44// rdar://problem/6974641
45float t0[] = {
46  1.9e20f,
47  1.9e-20f,
48  1.9e50f,   // expected-warning {{too large}}
49  1.9e-50f,  // expected-warning {{too small}}
50  -1.9e20f,
51  -1.9e-20f,
52  -1.9e50f,  // expected-warning {{too large}}
53  -1.9e-50f  // expected-warning {{too small}}
54};
55double t1[] = {
56  1.9e50,
57  1.9e-50,
58  1.9e500,   // expected-warning {{too large}}
59  1.9e-500,  // expected-warning {{too small}}
60  -1.9e50,
61  -1.9e-50,
62  -1.9e500,  // expected-warning {{too large}}
63  -1.9e-500  // expected-warning {{too small}}
64};
65
66// PR7888
67double g = 1e100000000; // expected-warning {{too large}}
68