xref: /llvm-project/clang/test/C/C99/n629.c (revision d7e06d5675b62b5d3d89e6d6210c34b74a1a8356)
1 // RUN: %clang_cc1 -triple x86_64-unknown-linux -verify %s
2 // RUN: %clang_cc1 -triple i686-unknown-linux -verify %s
3 // RUN: %clang_cc1 -triple x86_64-unknown-win32 -verify %s
4 // RUN: %clang_cc1 -triple i686-unknown-win32 -verify %s
5 
6 /* WG14 N629: yes
7  * integer constant type rules
8  */
9 
10 // expected-no-diagnostics
11 
test_decimal_constants(void)12 void test_decimal_constants(void) {
13   // Easy cases where the value fits into the type you'd expect.
14   (void)_Generic(2,    int : 1);
15   (void)_Generic(2u,   unsigned int : 1);
16   (void)_Generic(2l,   long : 1);
17   (void)_Generic(2ul,  unsigned long : 1);
18   (void)_Generic(2ll,  long long : 1);
19   (void)_Generic(2ull, unsigned long long : 1);
20 
21 #if __INT_WIDTH__ == 16
22   #if __LONG_WIDTH__ > 16
23     (void)_Generic(65536, long : 1);
24     (void)_Generic(65536U, unsigned long : 1);
25   #else
26     (void)_Generic(65536, long long : 1);
27     (void)_Generic(65536U, unsigned long : 1);
28   #endif // __LONG_WIDTH__ > 16
29 #elif __INT_WIDTH__ == 32
30   #if __LONG_WIDTH__ > 32
31     (void)_Generic(4294967296, long : 1);
32     (void)_Generic(4294967296U, unsigned long : 1);
33   #else
34     (void)_Generic(4294967296, long long : 1);
35     (void)_Generic(4294967296U, unsigned long long : 1);
36   #endif // __LONG_WIDTH__ > 32
37 #endif
38 
39 #if __LONG_WIDTH__ > 32
40   (void)_Generic(4294967296L, long : 1);
41   (void)_Generic(4294967296U, unsigned long : 1);
42 #else
43   (void)_Generic(4294967296L, long long : 1);
44   (void)_Generic(4294967296U, unsigned long long : 1);
45 #endif
46 }
47 
test_octal_constants(void)48 void test_octal_constants(void) {
49   (void)_Generic(02,    int : 1);
50   (void)_Generic(02u,   unsigned int : 1);
51   (void)_Generic(02l,   long : 1);
52   (void)_Generic(02ul,  unsigned long : 1);
53   (void)_Generic(02ll,  long long : 1);
54   (void)_Generic(02ull, unsigned long long : 1);
55 
56 #if __INT_WIDTH__ == 16
57   #if __LONG_WIDTH__ > 16
58     (void)_Generic(0200000, long : 1);
59     (void)_Generic(0200000U, unsigned long : 1);
60   #else
61     (void)_Generic(0200000, long long : 1);
62     (void)_Generic(0200000U, unsigned long : 1);
63   #endif // __LONG_WIDTH__ > 16
64 #elif __INT_WIDTH__ == 32
65   #if __LONG_WIDTH__ > 32
66     (void)_Generic(040000000000, long : 1);
67     (void)_Generic(040000000000U, unsigned long : 1);
68   #else
69     (void)_Generic(040000000000, long long : 1);
70     (void)_Generic(040000000000U, unsigned long long : 1);
71   #endif // __LONG_WIDTH__ > 32
72 #endif
73 
74 #if __LONG_WIDTH__ > 32
75   (void)_Generic(040000000000L, long : 1);
76   (void)_Generic(040000000000U, unsigned long : 1);
77 #else
78   (void)_Generic(040000000000L, long long : 1);
79   (void)_Generic(040000000000U, unsigned long long : 1);
80 #endif
81 }
82 
test_hexadecimal_constants(void)83 void test_hexadecimal_constants(void) {
84   (void)_Generic(0x2,    int : 1);
85   (void)_Generic(0x2u,   unsigned int : 1);
86   (void)_Generic(0x2l,   long : 1);
87   (void)_Generic(0x2ul,  unsigned long : 1);
88   (void)_Generic(0x2ll,  long long : 1);
89   (void)_Generic(0x2ull, unsigned long long : 1);
90 
91 #if __INT_WIDTH__ == 16
92   #if __LONG_WIDTH__ > 16
93     (void)_Generic(0x10000, long : 1);
94     (void)_Generic(0x10000U, unsigned long : 1);
95   #else
96     (void)_Generic(0x10000, long long : 1);
97     (void)_Generic(0x10000U, unsigned long : 1);
98   #endif // __LONG_WIDTH__ > 16
99 #elif __INT_WIDTH__ == 32
100   #if __LONG_WIDTH__ > 32
101     (void)_Generic(0x100000000, long : 1);
102     (void)_Generic(0x100000000U, unsigned long : 1);
103   #else
104     (void)_Generic(0x100000000, long long : 1);
105     (void)_Generic(0x100000000U, unsigned long long : 1);
106   #endif // __LONG_WIDTH__ > 32
107 #endif
108 
109 #if __LONG_WIDTH__ > 32
110   (void)_Generic(0x100000000L, long : 1);
111   (void)_Generic(0x100000000U, unsigned long : 1);
112 #else
113   (void)_Generic(0x100000000L, long long : 1);
114   (void)_Generic(0x100000000U, unsigned long long : 1);
115 #endif
116 }
117