#include <stdio.h> #include <wchar.h> #include <sys/types.h> static wchar_t buf[100]; #define nbuf (sizeof (buf) / sizeof (buf[0])) static const struct { size_t n; const char *str; ssize_t exp; } tests[] = { { nbuf, "hello world", 11 }, { 0, "hello world", -1 }, { 0, "", -1 }, { nbuf, "", 0 } }; int main (int argc, char *argv[]) { size_t n; int result = 0; puts ("test 1"); n = swprintf (buf, nbuf, L"Hello %s", "world"); if (n != 11) { printf ("incorrect return value: %zd instead of 11\n", n); result = 1; } else if (wcscmp (buf, L"Hello world") != 0) { printf ("incorrect string: L\"%ls\" instead of L\"Hello world\"\n", buf); result = 1; } puts ("test 2"); n = swprintf (buf, nbuf, L"Is this >%g< 3.1?", 3.1); if (n != 18) { printf ("incorrect return value: %zd instead of 18\n", n); result = 1; } else if (wcscmp (buf, L"Is this >3.1< 3.1?") != 0) { printf ("incorrect string: L\"%ls\" instead of L\"Is this >3.1< 3.1?\"\n", buf); result = 1; } for (n = 0; n < sizeof (tests) / sizeof (tests[0]); ++n) { ssize_t res = swprintf (buf, tests[n].n, L"%s", tests[n].str); if (tests[n].exp < 0 && res >= 0) { printf ("swprintf (buf, %Zu, L\"%%s\", \"%s\") expected to fail\n", tests[n].n, tests[n].str); result = 1; } else if (tests[n].exp >= 0 && tests[n].exp != res) { printf ("swprintf (buf, %Zu, L\"%%s\", \"%s\") expected to return %Zd, but got %Zd\n", tests[n].n, tests[n].str, tests[n].exp, res); result = 1; } else printf ("swprintf (buf, %Zu, L\"%%s\", \"%s\") OK\n", tests[n].n, tests[n].str); } if (swprintf (buf, nbuf, L"%.0s", "foo") != 0 || wcslen (buf) != 0) { printf ("swprintf (buf, %Zu, L\"%%.0s\", \"foo\") create some output\n", nbuf); result = 1; } if (swprintf (buf, nbuf, L"%.0ls", L"foo") != 0 || wcslen (buf) != 0) { printf ("swprintf (buf, %Zu, L\"%%.0ls\", L\"foo\") create some output\n", nbuf); result = 1; } return result; }