76 lines
1.3 KiB
C
76 lines
1.3 KiB
C
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/* Test program for fsetpos on a wide character stream. */
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#include <assert.h>
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#include <stdio.h>
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#include <wchar.h>
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static void do_prepare (void);
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#define PREPARE(argc, argv) do_prepare ()
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static int do_test (void);
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#define TEST_FUNCTION do_test ()
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#include <test-skeleton.c>
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static const char pattern[] = "12345";
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static char *temp_file;
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static void
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do_prepare (void)
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{
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int fd = create_temp_file ("bug-wsetpos.", &temp_file);
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if (fd == -1)
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{
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printf ("cannot create temporary file: %m\n");
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exit (1);
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}
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write (fd, pattern, sizeof (pattern));
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close (fd);
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}
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static int
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do_test (void)
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{
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FILE *fp = fopen (temp_file, "r");
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fpos_t pos;
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wchar_t c;
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if (fp == NULL)
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{
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printf ("fdopen: %m\n");
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return 1;
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}
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c = fgetwc (fp); assert (c == L'1');
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c = fgetwc (fp); assert (c == L'2');
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if (fgetpos (fp, &pos) == EOF)
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{
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printf ("fgetpos: %m\n");
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return 1;
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}
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rewind (fp);
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if (ferror (fp))
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{
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printf ("rewind: %m\n");
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return 1;
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}
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c = fgetwc (fp); assert (c == L'1');
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if (fsetpos (fp, &pos) == EOF)
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{
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printf ("fsetpos: %m\n");
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return 1;
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}
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c = fgetwc (fp);
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if (c != L'3')
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{
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puts ("fsetpos failed");
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return 1;
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}
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puts ("Test succeeded.");
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return 0;
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}
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