1 | // RUN: %clang_cc1 -DX32TYPE=ULONG -triple powerpc-unknown-linux-gnu -std=c89 -x c %s -verify |
2 | // RUN: %clang_cc1 -DX32TYPE=ULONG -triple powerpc-unknown-linux-gnu -std=iso9899:199409 -x c %s -verify |
3 | // RUN: %clang_cc1 -DX32TYPE=ULONG -triple powerpc-unknown-linux-gnu -std=c++98 -x c++ %s -verify |
4 | // RUN: %clang_cc1 -DX32TYPE=LLONG -triple powerpc-unknown-linux-gnu -std=c99 -x c %s -verify |
5 | // RUN: %clang_cc1 -DX32TYPE=LLONG -triple powerpc-unknown-linux-gnu -std=c11 -x c %s -verify |
6 | // RUN: %clang_cc1 -DX32TYPE=LLONG -triple powerpc-unknown-linux-gnu -std=c++11 -x c++ %s -verify |
7 | // RUN: %clang_cc1 -DX32TYPE=LLONG -triple powerpc-unknown-linux-gnu -std=c++1y -x c++ %s -verify |
8 | // RUN: %clang_cc1 -DX32TYPE=LLONG -triple powerpc-unknown-linux-gnu -std=c++1z -x c++ %s -verify |
9 | // RUN: %clang_cc1 -DX64TYPE=ULONG -triple powerpc64-unknown-linux-gnu -std=c89 -x c %s -verify |
10 | // RUN: %clang_cc1 -DX64TYPE=ULONG -triple powerpc64-unknown-linux-gnu -std=iso9899:199409 -x c %s -verify |
11 | // RUN: %clang_cc1 -DX64TYPE=ULONG -triple powerpc64-unknown-linux-gnu -std=c++98 -x c++ %s -verify |
12 | // RUN: %clang_cc1 -DX64TYPE=ULLONG -triple powerpc64-unknown-linux-gnu -std=c99 -x c %s -verify |
13 | // RUN: %clang_cc1 -DX64TYPE=ULLONG -triple powerpc64-unknown-linux-gnu -std=c11 -x c %s -verify |
14 | // RUN: %clang_cc1 -DX64TYPE=ULLONG -triple powerpc64-unknown-linux-gnu -std=c++11 -x c++ %s -verify |
15 | // RUN: %clang_cc1 -DX64TYPE=ULLONG -triple powerpc64-unknown-linux-gnu -std=c++1y -x c++ %s -verify |
16 | // RUN: %clang_cc1 -DX64TYPE=ULLONG -triple powerpc64-unknown-linux-gnu -std=c++1z -x c++ %s -verify |
17 | |
18 | #ifdef X64TYPE |
19 | #define X32TYPE long |
20 | #endif |
21 | |
22 | #define IS_ULONG_ULONG 1 |
23 | #define IS_ULONG2(X) IS_ULONG_##X |
24 | #define IS_ULONG(X) IS_ULONG2(X) |
25 | |
26 | #if !defined(X64TYPE) && !IS_ULONG(X32TYPE) |
27 | // expected-no-diagnostics |
28 | #endif |
29 | |
30 | typedef unsigned long ULONG; |
31 | typedef long long LLONG; |
32 | typedef unsigned long long ULLONG; |
33 | |
34 | |
35 | /****************************************************************************** |
36 | * Test 2^31 as a decimal literal with no suffix and with the "l" and "L" cases. |
37 | ******************************************************************************/ |
38 | extern X32TYPE x32; |
39 | extern __typeof__(2147483648) x32; |
40 | extern __typeof__(2147483648l) x32; |
41 | extern __typeof__(2147483648L) x32; |
42 | |
43 | #if IS_ULONG(X32TYPE) |
44 | #if !__cplusplus |
45 | |
46 | /****************************************************************************** |
47 | * Under pre-C99 ISO C, unsigned long is attempted for decimal integer literals |
48 | * that do not have a suffix containing "u" or "U" if the literal does not fit |
49 | * within the range of int or long. See 6.1.3.2 paragraph 5. |
50 | ******************************************************************************/ |
51 | // expected-warning@39 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C89; this literal will have type 'long long' in C99 onwards}} |
52 | // expected-warning@40 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C89; this literal will have type 'long long' in C99 onwards}} |
53 | // expected-warning@41 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C89; this literal will have type 'long long' in C99 onwards}} |
54 | #else |
55 | |
56 | /****************************************************************************** |
57 | * Under pre-C++11 ISO C++, the same holds if the literal contains an "l" or "L" |
58 | * in its suffix; otherwise, the behavior is undefined. See 2.13.1 [lex.icon] |
59 | * paragraph 2. |
60 | ******************************************************************************/ |
61 | // expected-warning@39 {{integer literal is too large to be represented in type 'long' and is subject to undefined behavior under C++98, interpreting as 'unsigned long'; this literal will have type 'long long' in C++11 onwards}} |
62 | // expected-warning@40 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C++98; this literal will have type 'long long' in C++11 onwards}} |
63 | // expected-warning@41 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C++98; this literal will have type 'long long' in C++11 onwards}} |
64 | #endif |
65 | #endif |
66 | |
67 | |
68 | #ifdef X64TYPE |
69 | |
70 | /****************************************************************************** |
71 | * Test 2^63 as a decimal literal with no suffix and with the "l" and "L" cases. |
72 | ******************************************************************************/ |
73 | extern X64TYPE x64; |
74 | extern __typeof__(9223372036854775808) x64; |
75 | extern __typeof__(9223372036854775808l) x64; |
76 | extern __typeof__(9223372036854775808L) x64; |
77 | |
78 | #if IS_ULONG(X64TYPE) |
79 | |
80 | #if !__cplusplus |
81 | |
82 | /****************************************************************************** |
83 | * Under pre-C99 ISO C, unsigned long is attempted for decimal integer literals |
84 | * that do not have a suffix containing "u" or "U" if the literal does not fit |
85 | * within the range of int or long. See 6.1.3.2 paragraph 5. |
86 | ******************************************************************************/ |
87 | // expected-warning@74 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C89; this literal will be ill-formed in C99 onwards}} |
88 | // expected-warning@75 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C89; this literal will be ill-formed in C99 onwards}} |
89 | // expected-warning@76 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C89; this literal will be ill-formed in C99 onwards}} |
90 | #else |
91 | |
92 | /****************************************************************************** |
93 | * Under pre-C++11 ISO C++, the same holds if the literal contains an "l" or "L" |
94 | * in its suffix; otherwise, the behavior is undefined. See 2.13.1 [lex.icon] |
95 | * paragraph 2. |
96 | ******************************************************************************/ |
97 | // expected-warning@74 {{integer literal is too large to be represented in type 'long' and is subject to undefined behavior under C++98, interpreting as 'unsigned long'; this literal will be ill-formed in C++11 onwards}} |
98 | // expected-warning@75 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C++98; this literal will be ill-formed in C++11 onwards}} |
99 | // expected-warning@76 {{integer literal is too large to be represented in type 'long', interpreting as 'unsigned long' per C++98; this literal will be ill-formed in C++11 onwards}} |
100 | #endif |
101 | #else |
102 | |
103 | /****************************************************************************** |
104 | * The status quo in C99/C++11-and-later modes for the literals in question is |
105 | * to interpret them as unsigned as an extension. |
106 | ******************************************************************************/ |
107 | // expected-warning@74 {{integer literal is too large to be represented in a signed integer type, interpreting as unsigned}} |
108 | // expected-warning@75 {{integer literal is too large to be represented in a signed integer type, interpreting as unsigned}} |
109 | // expected-warning@76 {{integer literal is too large to be represented in a signed integer type, interpreting as unsigned}} |
110 | #endif |
111 | #endif |
112 | |
113 | |
114 | /****************************************************************************** |
115 | * Test preprocessor arithmetic with 2^31 as a decimal literal with no suffix |
116 | * and with the "l" and "L" cases. |
117 | ******************************************************************************/ |
118 | #if !IS_ULONG(X32TYPE) |
119 | |
120 | /****************************************************************************** |
121 | * If the literal is signed without need for the modified range of the signed |
122 | * integer types within the controlling constant expression for conditional |
123 | * inclusion, then it will also be signed with said modified range. |
124 | ******************************************************************************/ |
125 | #define EXPR(X) ((X - X) - 1 < 0) |
126 | #else |
127 | |
128 | /****************************************************************************** |
129 | * Strictly speaking, in pre-C99/C++11 ISO C/C++, the preprocessor arithmetic is |
130 | * evaluated with the range of long/unsigned long; however, both Clang and GCC |
131 | * evaluate using 64-bits even when long/unsigned long are 32-bits outside of |
132 | * preprocessing. |
133 | * |
134 | * If the range used becomes 32-bits, then this test will enforce the treatment |
135 | * as unsigned of the literals in question. |
136 | * |
137 | * Note: |
138 | * Under pre-C99/C++11 ISO C/C++, whether the interpretation of the literal is |
139 | * affected by the modified range of the signed and unsigned integer types |
140 | * within the controlling constant expression for conditional inclusion is |
141 | * unclear. |
142 | ******************************************************************************/ |
143 | #define PP_LONG_MAX ((0ul - 1ul) >> 1) |
144 | #define EXPR(X) \ |
145 | (PP_LONG_MAX >= 0x80000000 || (X - X) - 1 > 0) // either 2^31 fits into a |
146 | // preprocessor "long" or the |
147 | // literals in question are |
148 | // unsigned |
149 | #endif |
150 | |
151 | #if !(EXPR(2147483648) && EXPR(2147483648l) && EXPR(2147483648L)) |
152 | #error Unexpected signedness or conversion behavior |
153 | #endif |
154 | |