47 lines
995 B
C
47 lines
995 B
C
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#include <stdio.h>
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#include <string.h>
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char x[4096], z[4096], b[21], m[4096 * 4];
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int
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main (void)
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{
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FILE *f = tmpfile ();
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int i, failed = 0;
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memset (x, 'x', 4096);
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memset (z, 'z', 4096);
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b[20] = 0;
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for (i = 0; i <= 5; i++)
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{
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fwrite (x, 4096, 1, f);
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fwrite (z, 4096, 1, f);
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}
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rewind (f);
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fread (m, 4096 * 4 - 10, 1, f);
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fread (b, 20, 1, f);
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printf ("got %s (should be %s)\n", b, "zzzzzzzzzzxxxxxxxxxx");
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if (strcmp (b, "zzzzzzzzzzxxxxxxxxxx"))
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failed = 1;
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fseek (f, -40, SEEK_CUR);
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fread (b, 20, 1, f);
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printf ("got %s (should be %s)\n", b, "zzzzzzzzzzzzzzzzzzzz");
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if (strcmp (b, "zzzzzzzzzzzzzzzzzzzz"))
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failed = 1;
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fread (b, 20, 1, f);
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printf ("got %s (should be %s)\n", b, "zzzzzzzzzzxxxxxxxxxx");
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if (strcmp (b, "zzzzzzzzzzxxxxxxxxxx"))
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failed = 1;
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fread (b, 20, 1, f);
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printf ("got %s (should be %s)\n", b, "xxxxxxxxxxxxxxxxxxxx");
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if (strcmp (b, "xxxxxxxxxxxxxxxxxxxx"))
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failed = 1;
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return failed;
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}
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