mirror of git://sourceware.org/git/glibc.git
99 lines
1.6 KiB
C
99 lines
1.6 KiB
C
#include <stdio.h>
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#include <sys/types.h>
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static int
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check (FILE *fp, off_t o)
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{
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int result = 0;
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if (feof (fp))
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{
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puts ("feof !");
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result = 1;
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}
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if (ferror (fp))
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{
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puts ("ferror !");
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result = 1;
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}
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if (ftello (fp) != o)
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{
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printf ("position = %lu, not %lu\n", (unsigned long int) ftello (fp),
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(unsigned long int) o);
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result = 1;
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}
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return result;
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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 = tmpfile ();
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if (fp == NULL)
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{
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puts ("tmpfile failed");
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return 1;
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}
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if (check (fp, 0) != 0)
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return 1;
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puts ("going to write");
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if (fputs ("hello", fp) == EOF)
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{
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puts ("fputs failed");
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return 1;
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}
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if (check (fp, 5) != 0)
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return 1;
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puts ("going to rewind");
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rewind (fp);
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if (check (fp, 0) != 0)
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return 1;
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puts ("going to read char");
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int c = fgetc (fp);
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if (c != 'h')
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{
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printf ("read %c, not %c\n", c, 'h');
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return 1;
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}
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if (check (fp, 1) != 0)
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return 1;
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puts ("going to put back");
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if (ungetc (' ', fp) == EOF)
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{
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puts ("ungetc failed");
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return 1;
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}
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if (check (fp, 0) != 0)
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return 1;
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puts ("going to write again");
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if (fputs ("world", fp) == EOF)
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{
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puts ("2nd fputs failed");
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return 1;
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}
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if (check (fp, 5) != 0)
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return 1;
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puts ("going to rewind again");
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rewind (fp);
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if (check (fp, 0) != 0)
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return 1;
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if (fclose (fp) != 0)
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{
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puts ("fclose failed");
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return 1;
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}
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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