--- /dev/null
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 700
+#endif
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <limits.h>
+#include <math.h>
+#include <wchar.h>
+#include <locale.h>
+#include <langinfo.h>
+#include "test.h"
+
+#define TEST(r, f, x, m) ( \
+ ((r) = (f)) == (x) || \
+ (error("%s failed (" m ")\n", #f, r, x), 0) )
+
+#define TEST_S(s, x, m) ( \
+ !wcscmp((s),(x)) || \
+ (error("[%ls] != [%ls] (%s)\n", s, x, m), 0) )
+
+static const struct {
+ const wchar_t *fmt;
+ int i;
+ const wchar_t *expect;
+} int_tests[] = {
+ /* width, precision, alignment */
+ { L"%04d", 12, L"0012" },
+ { L"%.3d", 12, L"012" },
+ { L"%3d", 12, L" 12" },
+ { L"%-3d", 12, L"12 " },
+ { L"%+3d", 12, L"+12" },
+ { L"%+-5d", 12, L"+12 " },
+ { L"%+- 5d", 12, L"+12 " },
+ { L"%- 5d", 12, L" 12 " },
+ { L"% d", 12, L" 12" },
+ { L"%0-5d", 12, L"12 " },
+ { L"%-05d", 12, L"12 " },
+
+ /* ...explicit precision of 0 shall be no characters. */
+ { L"%.0d", 0, L"" },
+ { L"%.0o", 0, L"" },
+ { L"%#.0d", 0, L"" },
+ { L"%#.0o", 0, L"" },
+ { L"%#.0x", 0, L"" },
+
+ /* hex: test alt form and case */
+ { L"%x", 63, L"3f" },
+ { L"%#x", 63, L"0x3f" },
+ { L"%X", 63, L"3F" },
+
+ /* octal: test alt form */
+ { L"%o", 15, L"17" },
+ { L"%#o", 15, L"017" },
+
+ { NULL, 0.0, NULL }
+};
+
+static const struct {
+ const wchar_t *fmt;
+ double f;
+ const wchar_t *expect;
+} fp_tests[] = {
+ /* basic form, handling of exponent/precision for 0 */
+ { L"%e", 0.0, L"0.000000e+00" },
+ { L"%f", 0.0, L"0.000000" },
+ { L"%g", 0.0, L"0" },
+ { L"%#g", 0.0, L"0.00000" },
+
+ /* rounding */
+ { L"%f", 1.1, L"1.100000" },
+ { L"%f", 1.2, L"1.200000" },
+ { L"%f", 1.3, L"1.300000" },
+ { L"%f", 1.4, L"1.400000" },
+ { L"%f", 1.5, L"1.500000" },
+
+ /* correctness in DBL_DIG places */
+ { L"%.15g", 1.23456789012345, L"1.23456789012345" },
+
+ /* correct choice of notation for %g */
+ { L"%g", 0.0001, L"0.0001" },
+ { L"%g", 0.00001, L"1e-05" },
+ { L"%g", 123456, L"123456" },
+ { L"%g", 1234567, L"1.23457e+06" },
+ { L"%.7g", 1234567, L"1234567" },
+ { L"%.7g", 12345678, L"1.234568e+07" },
+
+ /* pi in double precision, printed to a few extra places */
+ { L"%.15f", M_PI, L"3.141592653589793" },
+ { L"%.18f", M_PI, L"3.141592653589793116" },
+
+ /* exact conversion of large integers */
+ { L"%.0f", 340282366920938463463374607431768211456.0,
+ L"340282366920938463463374607431768211456" },
+
+ { NULL, 0.0, NULL }
+};
+
+int main(void)
+{
+ int i, j;
+ wchar_t b[500];
+
+ (void)(
+ setlocale(LC_CTYPE, "en_US.UTF-8") ||
+ setlocale(LC_CTYPE, "en_GB.UTF-8") ||
+ setlocale(LC_CTYPE, "en.UTF-8") ||
+ setlocale(LC_CTYPE, "POSIX.UTF-8") ||
+ setlocale(LC_CTYPE, "C.UTF-8") ||
+ setlocale(LC_CTYPE, "UTF-8") ||
+ setlocale(LC_CTYPE, "") );
+
+ TEST(i, strcmp(nl_langinfo(CODESET), "UTF-8"), 0, "no UTF-8 locale; tests might fail");
+
+ TEST(i, swprintf(0, 0, L"%d", 123456)<0, 1, "%d != %d");
+
+ TEST(i, swprintf(b, 2, L"%lc", 0xc0), 1, "%d != %d");
+ TEST(i, b[0], 0xc0, "wrong character %x != %x");
+ TEST(i, swprintf(b, 2, L"%lc", 0x20ac), 1, "%d != %d");
+ TEST(i, b[0], 0x20ac, "wrong character %x != %x");
+ TEST(i, swprintf(b, 3, L"%s", "\xc3\x80!"), 2, "%d != %d");
+ TEST(i, b[0], 0xc0, "wrong character %x != %x");
+ TEST(i, swprintf(b, 2, L"%.1s", "\xc3\x80!"), 1, "%d != %d");
+ TEST(i, b[0], 0xc0, "wrong character %x != %x");
+
+ wcscpy(b, L"xxxxxxxx");
+ TEST(i, swprintf(b, 4, L"%d", 123456)<0, 1, "%d != %d");
+ TEST_S(b, L"123", "incorrect output");
+ TEST(i, b[5], 'x', "buffer overrun");
+
+ for (j=0; int_tests[j].fmt; j++) {
+ i = swprintf(b, sizeof b, int_tests[j].fmt, int_tests[j].i);
+ if (i != wcslen(int_tests[j].expect)) {
+ error("swprintf(b, sizeof b, \"%ls\", %d) returned %d wanted %d\n",
+ int_tests[j].fmt, int_tests[j].i, i, wcslen(int_tests[j].expect));
+ }
+ if (wcscmp(b, int_tests[j].expect) != 0)
+ error("bad integer conversion: got \"%ls\", want \"%ls\"\n", b, int_tests[j].expect);
+ }
+
+ for (j=0; fp_tests[j].fmt; j++) {
+ i = swprintf(b, sizeof b, fp_tests[j].fmt, fp_tests[j].f);
+ if (i != wcslen(fp_tests[j].expect)) {
+ error("swprintf(b, sizeof b, \"%ls\", %f) returned %d wanted %d\n",
+ fp_tests[j].fmt, fp_tests[j].f, i, wcslen(fp_tests[j].expect));
+ }
+ if (wcscmp(b, fp_tests[j].expect) != 0)
+ error("bad floating-point conversion: got \"%ls\", want \"%ls\"\n", b, fp_tests[j].expect);
+ }
+ return test_status;
+}
projects / libc-test / blobdiff