1 #define _XOPEN_SOURCE 700
12 #define TEST(r, f, x, m) ( \
13 ((r) = (f)) == (x) || \
14 (error("%s failed (" m ")\n", #f, r, x), 0) )
16 #define TEST_S(s, x, m) ( \
18 (error("[%ls] != [%ls] (%s)\n", s, x, m), 0) )
23 const wchar_t *expect;
25 /* width, precision, alignment */
26 { L"%04d", 12, L"0012" },
27 { L"%.3d", 12, L"012" },
28 { L"%3d", 12, L" 12" },
29 { L"%-3d", 12, L"12 " },
30 { L"%+3d", 12, L"+12" },
31 { L"%+-5d", 12, L"+12 " },
32 { L"%+- 5d", 12, L"+12 " },
33 { L"%- 5d", 12, L" 12 " },
34 { L"% d", 12, L" 12" },
35 { L"%0-5d", 12, L"12 " },
36 { L"%-05d", 12, L"12 " },
38 /* ...explicit precision of 0 shall be no characters. */
45 /* hex: test alt form and case */
47 { L"%#x", 63, L"0x3f" },
50 /* octal: test alt form */
52 { L"%#o", 15, L"017" },
60 const wchar_t *expect;
62 /* basic form, handling of exponent/precision for 0 */
63 { L"%e", 0.0, L"0.000000e+00" },
64 { L"%f", 0.0, L"0.000000" },
66 { L"%#g", 0.0, L"0.00000" },
69 { L"%f", 1.1, L"1.100000" },
70 { L"%f", 1.2, L"1.200000" },
71 { L"%f", 1.3, L"1.300000" },
72 { L"%f", 1.4, L"1.400000" },
73 { L"%f", 1.5, L"1.500000" },
75 /* correctness in DBL_DIG places */
76 { L"%.15g", 1.23456789012345, L"1.23456789012345" },
78 /* correct choice of notation for %g */
79 { L"%g", 0.0001, L"0.0001" },
80 { L"%g", 0.00001, L"1e-05" },
81 { L"%g", 123456, L"123456" },
82 { L"%g", 1234567, L"1.23457e+06" },
83 { L"%.7g", 1234567, L"1234567" },
84 { L"%.7g", 12345678, L"1.234568e+07" },
86 /* pi in double precision, printed to a few extra places */
87 { L"%.15f", M_PI, L"3.141592653589793" },
88 { L"%.18f", M_PI, L"3.141592653589793116" },
90 /* exact conversion of large integers */
91 { L"%.0f", 340282366920938463463374607431768211456.0,
92 L"340282366920938463463374607431768211456" },
97 void test_swprintf(void) {
101 setlocale(LC_CTYPE, "en_US.UTF-8") ||
102 setlocale(LC_CTYPE, "en_GB.UTF-8") ||
103 setlocale(LC_CTYPE, "en.UTF-8") ||
104 setlocale(LC_CTYPE, "POSIX.UTF-8") ||
105 setlocale(LC_CTYPE, "C.UTF-8") ||
106 setlocale(LC_CTYPE, "UTF-8") ||
107 setlocale(LC_CTYPE, "");
109 TEST(i, strcmp(nl_langinfo(CODESET), "UTF-8"), 0, "no UTF-8 locale; tests might fail");
111 TEST(i, swprintf(0, 0, L"%d", 123456)<0, 1, "%d != %d");
113 TEST(i, swprintf(b, 2, L"%lc", 0xc0), 1, "%d != %d");
114 TEST(i, b[0], 0xc0, "wrong character %x != %x");
115 TEST(i, swprintf(b, 2, L"%lc", 0x20ac), 1, "%d != %d");
116 TEST(i, b[0], 0x20ac, "wrong character %x != %x");
117 TEST(i, swprintf(b, 3, L"%s", "\xc3\x80!"), 2, "%d != %d");
118 TEST(i, b[0], 0xc0, "wrong character %x != %x");
119 TEST(i, swprintf(b, 2, L"%.1s", "\xc3\x80!"), 1, "%d != %d");
120 TEST(i, b[0], 0xc0, "wrong character %x != %x");
122 wcscpy(b, L"xxxxxxxx");
123 TEST(i, swprintf(b, 4, L"%d", 123456)<0, 1, "%d != %d");
124 TEST_S(b, L"123", "incorrect output");
125 TEST(i, b[5], 'x', "buffer overrun");
127 for (j=0; int_tests[j].fmt; j++) {
128 TEST(i, swprintf(b, sizeof b/sizeof *b, int_tests[j].fmt, int_tests[j].i), wcslen(b), "%d != %d");
129 TEST_S(b, int_tests[j].expect, "bad integer conversion");
132 for (j=0; fp_tests[j].fmt; j++) {
133 TEST(i, swprintf(b, sizeof b/sizeof *b, fp_tests[j].fmt, fp_tests[j].f), wcslen(b), "%d != %d");
134 TEST_S(b, fp_tests[j].expect, "bad floating point conversion");