2 * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * Tests for basic and miscellaneous printf() formats.
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
46 #define testfmt(result, fmt, ...) \
47 _testfmt((result), __LINE__, #__VA_ARGS__, fmt, __VA_ARGS__)
48 void _testfmt(const char *, int, const char *, const char *, ...);
49 void smash_stack(void);
51 #define S_UINT64MAX "18446744073709551615"
52 #define S_UINT32MAX "4294967295"
53 #define S_INT64MIN "-9223372036854775808"
54 #define S_INT32MIN "-2147483648"
56 #define S_SIZEMAX (SIZE_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
57 #define S_ULONGMAX (ULONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
58 #define S_ULLONGMAX (ULLONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
61 main(int argc, char *argv[])
65 assert(setlocale(LC_NUMERIC, "C"));
67 /* The test requires these to be true. */
68 assert(UINTMAX_MAX == UINT64_MAX);
69 assert(UINT_MAX == UINT32_MAX);
70 assert(USHRT_MAX == 0xffff);
71 assert(UCHAR_MAX == 0xff);
74 * Make sure we handle signed vs. unsigned args correctly.
76 testfmt("-1", "%jd", (intmax_t)-1);
77 testfmt(S_UINT64MAX, "%ju", UINT64_MAX);
79 testfmt("-1", "%td", (ptrdiff_t)-1);
80 testfmt(S_SIZEMAX, "%tu", (size_t)-1);
82 testfmt("-1", "%zd", (ssize_t)-1);
83 testfmt(S_SIZEMAX, "%zu", (ssize_t)-1);
85 testfmt("-1", "%ld", (long)-1);
86 testfmt(S_ULONGMAX, "%lu", ULONG_MAX);
88 testfmt("-1", "%lld", (long long)-1);
89 testfmt(S_ULONGMAX, "%lu", ULLONG_MAX);
91 testfmt("-1", "%d", -1);
92 testfmt(S_UINT32MAX, "%lu", UINT32_MAX);
94 testfmt("-1", "%hd", -1);
95 testfmt("65535", "%hu", USHRT_MAX);
97 testfmt("-1", "%hhd", -1);
98 testfmt("255", "%hhu", UCHAR_MAX);
100 printf("ok 1 - printbasic signed/unsigned\n");
103 * Check that printing the largest negative number does not cause
104 * overflow when it is negated.
106 testfmt(S_INT32MIN, "%d", INT_MIN);
107 testfmt(S_INT64MIN, "%jd", INTMAX_MIN);
109 printf("ok 2 - printbasic INT_MIN\n");
118 static uint32_t junk = 0xdeadbeef;
122 for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++)
127 _testfmt(const char *result, int line, const char *argstr, const char *fmt,...)
130 wchar_t ws[BUF], wfmt[BUF], wresult[BUF];
137 vsnprintf(s, sizeof(s), fmt, ap);
138 if (strcmp(result, s) != 0) {
140 "%d: printf(\"%s\", %s) ==> [%s], expected [%s]\n",
141 line, fmt, argstr, s, result);
146 mbstowcs(ws, s, BUF - 1);
147 mbstowcs(wfmt, fmt, BUF - 1);
148 mbstowcs(wresult, result, BUF - 1);
149 vswprintf(ws, sizeof(ws) / sizeof(ws[0]), wfmt, ap2);
150 if (wcscmp(wresult, ws) != 0) {
152 "%d: wprintf(\"%ls\", %s) ==> [%ls], expected [%ls]\n",
153 line, wfmt, argstr, ws, wresult);