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#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;
}
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