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Commit | Line | Data |
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2f9a1be8 UD |
1 | #include <byteswap.h> |
2 | #include <endian.h> | |
3 | #include <inttypes.h> | |
4 | #include <stdio.h> | |
e054f494 | 5 | #include <stdint.h> |
e15f7de6 | 6 | #include <libc-diag.h> |
f69f8870 SL |
7 | |
8 | #if __GNUC_PREREQ (6, 0) | |
9 | /* GCC 6.0 warns on big endian systems about: | |
10 | htobeXX (beXXtoh (i)) != i | |
11 | warning: self-comparison always evaluates to false [-Wtautological-compare] | |
12 | because htobeXX(x) and beXXtoh(x) is defined to (x) | |
13 | in string/endian.h on big endian systems. | |
14 | The same applies to htoleXX/leXXtoh on little endian systems. */ | |
15 | # define DIAG_IGNORE_NEEDS_COMMENT_TAUTOLOGICAL_COMPARE() \ | |
16 | DIAG_IGNORE_NEEDS_COMMENT (6, "-Wtautological-compare") | |
17 | #else | |
18 | # define DIAG_IGNORE_NEEDS_COMMENT_TAUTOLOGICAL_COMPARE() | |
19 | #endif | |
2f9a1be8 | 20 | |
fb82116f | 21 | int |
2f9a1be8 UD |
22 | do_test (void) |
23 | { | |
24 | int result = 0; | |
25 | ||
26 | for (uint64_t i = 0; i < (~UINT64_C (0)) >> 2; i = (i << 1) + 3) | |
27 | { | |
28 | if (i < UINT64_C (65536)) | |
29 | { | |
f69f8870 SL |
30 | DIAG_PUSH_NEEDS_COMMENT; |
31 | DIAG_IGNORE_NEEDS_COMMENT_TAUTOLOGICAL_COMPARE (); | |
2f9a1be8 UD |
32 | if (htobe16 (be16toh (i)) != i) |
33 | { | |
34 | printf ("htobe16 (be16toh (%" PRIx64 ")) == %" PRIx16 "\n", | |
35 | i, (uint16_t) htobe16 (be16toh (i))); | |
36 | result = 1; | |
37 | } | |
38 | if (htole16 (le16toh (i)) != i) | |
39 | { | |
40 | printf ("htole16 (le16toh (%" PRIx64 ")) == %" PRIx16 "\n", | |
41 | i, (uint16_t) htole16 (le16toh (i))); | |
42 | result = 1; | |
43 | } | |
f69f8870 | 44 | DIAG_POP_NEEDS_COMMENT; |
2f9a1be8 UD |
45 | |
46 | uint16_t n[2]; | |
47 | n[__BYTE_ORDER == __LITTLE_ENDIAN] = bswap_16 (i); | |
48 | n[__BYTE_ORDER == __BIG_ENDIAN] = i; | |
49 | if (htole16 (i) != n[0]) | |
50 | { | |
51 | printf ("htole16 (%" PRIx64 ") == %" PRIx16 " != %" PRIx16 "\n", | |
52 | i, (uint16_t) htole16 (i), n[0]); | |
53 | result = 1; | |
54 | } | |
55 | if (htobe16 (i) != n[1]) | |
56 | { | |
57 | printf ("htobe16 (%" PRIx64 ") == %" PRIx16 " != %" PRIx16 "\n", | |
58 | i, (uint16_t) htobe16 (i), n[1]); | |
59 | result = 1; | |
60 | } | |
61 | } | |
62 | ||
63 | if (i < UINT64_C (4294967296)) | |
64 | { | |
f69f8870 SL |
65 | DIAG_PUSH_NEEDS_COMMENT; |
66 | DIAG_IGNORE_NEEDS_COMMENT_TAUTOLOGICAL_COMPARE (); | |
2f9a1be8 UD |
67 | if (htobe32 (be32toh (i)) != i) |
68 | { | |
69 | printf ("htobe32 (be32toh (%" PRIx64 ")) == %" PRIx32 "\n", | |
70 | i, (uint32_t) htobe32 (be32toh (i))); | |
71 | result = 1; | |
72 | } | |
73 | if (htole32 (le32toh (i)) != i) | |
74 | { | |
75 | printf ("htole32 (le32toh (%" PRIx64 ")) == %" PRIx32 "\n", | |
76 | i, (uint32_t) htole32 (le32toh (i))); | |
77 | result = 1; | |
78 | } | |
f69f8870 | 79 | DIAG_POP_NEEDS_COMMENT; |
2f9a1be8 UD |
80 | |
81 | uint32_t n[2]; | |
82 | n[__BYTE_ORDER == __LITTLE_ENDIAN] = bswap_32 (i); | |
83 | n[__BYTE_ORDER == __BIG_ENDIAN] = i; | |
84 | if (htole32 (i) != n[0]) | |
85 | { | |
86 | printf ("htole32 (%" PRIx64 ") == %" PRIx32 " != %" PRIx32 "\n", | |
87 | i, (uint32_t) htole32 (i), n[0]); | |
88 | result = 1; | |
89 | } | |
90 | if (htobe32 (i) != n[1]) | |
91 | { | |
92 | printf ("htobe32 (%" PRIx64 ") == %" PRIx32 " != %" PRIx32 "\n", | |
93 | i, (uint32_t) htobe32 (i), n[1]); | |
94 | result = 1; | |
95 | } | |
96 | } | |
97 | ||
f69f8870 SL |
98 | DIAG_PUSH_NEEDS_COMMENT; |
99 | DIAG_IGNORE_NEEDS_COMMENT_TAUTOLOGICAL_COMPARE (); | |
2f9a1be8 UD |
100 | if (htobe64 (be64toh (i)) != i) |
101 | { | |
102 | printf ("htobe64 (be64toh (%" PRIx64 ")) == %" PRIx64 "\n", | |
103 | i, htobe64 (be64toh (i))); | |
104 | result = 1; | |
105 | } | |
106 | if (htole64 (le64toh (i)) != i) | |
107 | { | |
108 | printf ("htole64 (le64toh (%" PRIx64 ")) == %" PRIx64 "\n", | |
109 | i, htole64 (le64toh (i))); | |
110 | result = 1; | |
111 | } | |
f69f8870 | 112 | DIAG_POP_NEEDS_COMMENT; |
2f9a1be8 UD |
113 | |
114 | uint64_t n[2]; | |
115 | n[__BYTE_ORDER == __LITTLE_ENDIAN] = bswap_64 (i); | |
116 | n[__BYTE_ORDER == __BIG_ENDIAN] = i; | |
117 | if (htole64 (i) != n[0]) | |
118 | { | |
119 | printf ("htole64 (%" PRIx64 ") == %" PRIx64 " != %" PRIx64 "\n", | |
120 | i, htole64 (i), n[0]); | |
121 | result = 1; | |
122 | } | |
123 | if (htobe64 (i) != n[1]) | |
124 | { | |
125 | printf ("htobe64 (%" PRIx64 ") == %" PRIx64 " != %" PRIx64 "\n", | |
126 | i, htobe64 (i), n[1]); | |
127 | result = 1; | |
128 | } | |
129 | } | |
130 | ||
131 | return result; | |
132 | } | |
133 | ||
fb82116f | 134 | #include <support/test-driver.c> |