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libio/bug-rewind2.c
67 строк
1 KB
Joseph Myers
Fix warnings in fwscanf / rewind tests.
26 ноя 2014, 15:54
26 ноя 2014, 15:54
12da14a
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#include <stdio.h> #include <wchar.h> static int fd; static void prepare (void); #define PREPARE(argc, argv) prepare () #define TEST_FUNCTION do_test () static int do_test (void); #include "../test-skeleton.c" static void prepare (void) { fd = create_temp_file ("wrewind2.", NULL); if (fd == -1) exit (3); } static int do_test (void) { wchar_t dummy[10]; int ret = 0; FILE *fp; int result = 0; fp = fdopen (fd, "w+"); if (fp == NULL) { puts ("fopen(""testfile"", ""w+"") returned NULL."); return 1; } else { fwprintf (fp, L"abcd"); printf ("current pos = %ld\n", ftell (fp)); if (ftell (fp) != 4) result = 1; rewind (fp); ret = fwscanf (fp, L"%c", dummy); if (ret != 1) { printf ("fwscanf returned %d, expected 1\n", ret); result = 1; } printf ("current pos = %ld\n", ftell (fp)); if (ftell (fp) != 1) result = 1; rewind (fp); printf ("current pos = %ld\n", ftell (fp)); if (ftell (fp) != 0) result = 1; fclose (fp); } return result; }