52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
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/* Check regression of a bug uncovered by the libio tFile test (old
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libstdc++, pre-gcc-3.x era), where appending to a file doesn't work.
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The default open-flags-mapping does not match Linux/CRIS, so a
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specific mapping is necessary. */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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int
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main (void)
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{
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FILE *f;
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const char fname[] = "sk1test.dat";
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const char tsttxt1[]
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= "This is the first and only line of this file.\n";
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const char tsttxt2[] = "Now there is a second line.\n";
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char buf[sizeof (tsttxt1) + sizeof (tsttxt2) - 1] = "";
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f = fopen (fname, "w+");
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if (f == NULL
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|| fwrite (tsttxt1, 1, strlen (tsttxt1), f) != strlen (tsttxt1)
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|| fclose (f) != 0)
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{
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printf ("fail\n");
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exit (1);
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}
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f = fopen (fname, "a+");
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if (f == NULL
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|| fwrite (tsttxt2, 1, strlen (tsttxt2), f) != strlen (tsttxt2)
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|| fclose (f) != 0)
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{
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printf ("fail\n");
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exit (1);
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}
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f = fopen (fname, "r");
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if (f == NULL
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|| fread (buf, 1, sizeof (buf), f) != sizeof (buf) - 1
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|| strncmp (buf, tsttxt1, strlen (tsttxt1)) != 0
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|| strncmp (buf + strlen (tsttxt1), tsttxt2, strlen (tsttxt2)) != 0
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|| fclose (f) != 0)
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{
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printf ("fail\n");
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exit (1);
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}
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printf ("pass\n");
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exit (0);
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}
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