| #include <float.h> |
| #include <math.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <wchar.h> |
| |
| static int |
| t1 (void) |
| { |
| int n = -1; |
| sscanf ("abc ", "abc %n", &n); |
| printf ("t1: count=%d\n", n); |
| |
| return n != 5; |
| } |
| |
| static int |
| t2 (void) |
| { |
| int result = 0; |
| int n; |
| long N; |
| int retval; |
| #define SCAN(INPUT, FORMAT, VAR, EXP_RES, EXP_VAL) \ |
| VAR = -1; \ |
| retval = sscanf (INPUT, FORMAT, &VAR); \ |
| printf ("sscanf (\"%s\", \"%s\", &x) => %d, x = %ld\n", \ |
| INPUT, FORMAT, retval, (long int) VAR); \ |
| result |= retval != EXP_RES || VAR != EXP_VAL |
| |
| SCAN ("12345", "%ld", N, 1, 12345); |
| SCAN ("12345", "%llllld", N, 0, -1); |
| SCAN ("12345", "%LLLLLd", N, 0, -1); |
| SCAN ("test ", "%*s%n", n, 0, 4); |
| SCAN ("test ", "%2*s%n", n, 0, -1); |
| SCAN ("12 ", "%l2d", n, 0, -1); |
| SCAN ("12 ", "%2ld", N, 1, 12); |
| |
| n = -1; |
| N = -1; |
| retval = sscanf ("1 1", "%d %Z", &n, &N); |
| printf ("sscanf (\"1 1\", \"%%d %%Z\", &n, &N) => %d, n = %d, N = %ld\n", \ |
| retval, n, N); \ |
| result |= retval != 1 || n != 1 || N != -1; |
| |
| return result; |
| } |
| |
| static int |
| F (void) |
| { |
| char buf[20]; |
| wchar_t wbuf[10]; |
| int result; |
| |
| snprintf (buf, sizeof buf, "%f %F", DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX, |
| DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX); |
| result = strcmp (buf, "nan NAN") != 0; |
| printf ("expected \"nan NAN\", got \"%s\"\n", buf); |
| |
| snprintf (buf, sizeof buf, "%f %F", DBL_MAX * DBL_MAX, DBL_MAX * DBL_MAX); |
| result |= strcmp (buf, "inf INF") != 0; |
| printf ("expected \"inf INF\", got \"%s\"\n", buf); |
| |
| swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%f %F", |
| DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX, |
| DBL_MAX * DBL_MAX - DBL_MAX * DBL_MAX); |
| result |= wcscmp (wbuf, L"nan NAN") != 0; |
| printf ("expected L\"nan NAN\", got L\"%S\"\n", wbuf); |
| |
| swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%f %F", |
| DBL_MAX * DBL_MAX, DBL_MAX * DBL_MAX); |
| result |= wcscmp (wbuf, L"inf INF") != 0; |
| printf ("expected L\"inf INF\", got L\"%S\"\n", wbuf); |
| |
| return result; |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| int result = 0; |
| |
| result |= t1 (); |
| result |= t2 (); |
| result |= F (); |
| |
| result |= fflush (stdout) == EOF; |
| |
| return result; |
| } |