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12da14a591
This patch fixes "set but not used" warnings in the tests libio/bug-rewind.c and libio/bug-rewind2.c by checking the return values from fwscanf and making the tests fail if those values aren't as expected. Tested for x86_64. * libio/bug-rewind.c (do_test): Check fwscanf return values. * libio/bug-rewind2.c (do_test): Likewise.
68 lines
1.1 KiB
C
68 lines
1.1 KiB
C
#include <stdio.h>
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#include <wchar.h>
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static int fd;
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static void prepare (void);
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#define PREPARE(argc, argv) prepare ()
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#define TEST_FUNCTION do_test ()
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static int do_test (void);
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#include "../test-skeleton.c"
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static void
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prepare (void)
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{
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fd = create_temp_file ("wrewind2.", NULL);
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if (fd == -1)
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exit (3);
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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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wchar_t dummy[10];
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int ret = 0;
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FILE *fp;
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int result = 0;
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fp = fdopen (fd, "w+");
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if (fp == NULL)
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{
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puts ("fopen(""testfile"", ""w+"") returned NULL.");
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return 1;
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}
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else
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{
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fwprintf (fp, L"abcd");
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printf ("current pos = %ld\n", ftell (fp));
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if (ftell (fp) != 4)
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result = 1;
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rewind (fp);
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ret = fwscanf (fp, L"%c", dummy);
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if (ret != 1)
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{
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printf ("fwscanf returned %d, expected 1\n", ret);
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result = 1;
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}
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printf ("current pos = %ld\n", ftell (fp));
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if (ftell (fp) != 1)
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result = 1;
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rewind (fp);
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printf ("current pos = %ld\n", ftell (fp));
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if (ftell (fp) != 0)
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result = 1;
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fclose (fp);
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}
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return result;
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}
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