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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.
84 lines
1.3 KiB
C
84 lines
1.3 KiB
C
#include <stdio.h>
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#include <wchar.h>
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#define PASSED 0
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#define FAILED 3
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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 ("wrewind.", 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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FILE *fptr;
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char arg1;
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char arg2;
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int ret1, ret2, result, num;
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ret1 = 0;
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ret2 = 0;
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fptr = fdopen (fd, "w+");
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if (fptr == NULL)
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{
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printf ("Unable to open file.\n");
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return 1;
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}
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if (fwprintf (fptr, L"cderf") <= 0)
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{
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printf ("Unable to write to file with fwprintf().\n");
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fclose (fptr);
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return 2;
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}
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rewind (fptr);
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ret1 = fwscanf (fptr, L"%c%c", &arg1, &arg2);
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if (ret1 != 2)
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{
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printf ("first fwscanf returned %d, expected 2\n", ret1);
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return 3;
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}
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rewind (fptr);
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ret2 = fwscanf (fptr, L"%c%n%c", &arg1, &num, &arg2);
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if (ret2 != 2)
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{
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printf ("second fwscanf returned %d, expected 2\n", ret2);
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return 4;
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}
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if (arg2 != 'd')
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{
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result = FAILED;
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printf ("rewind after first fwscanf failed\n");
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}
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else
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{
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printf ("Passed\n");
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result = PASSED;
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}
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fclose (fptr);
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return result;
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}
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