ORCA-C/Tests/Conformance/C17.14.0.1.CC

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/* Conformance Test 17.14.0.1: Verification of ferror and clearerr */
#include <stdio.h>
struct S { int i;
float f;
char c; };
main ()
{
struct S s [3] = { 1, 1.0, 'a', 2, 2.0, 'b', 3, 3.0, 'c' };
struct S buff [3];
FILE *f = fopen ("3/tmp", "w+b");
int i;
/* Write the elements to the file. */
if (f == NULL)
goto Fail1;
i = fwrite ((void *) s, sizeof (struct S), 3, f);
if (i != 3)
goto Fail;
/* Cause an error to occur. */
rewind (f);
i = fread ((void *) buff, sizeof (struct S), 5, f);
if (i != 3)
goto Fail;
i = ferror (f);
if (i != 0)
goto Fail;
i = feof (f);
if (i == 0)
goto Fail;
/* clear the error */
clearerr (f);
i = feof (f);
if (i != 0)
goto Fail;
i = fclose (f); /* close the file and quit */
if (i == EOF)
goto Fail2;
printf ("Passed Conformance Test 17.14.0.1\n");
return;
Fail:
printf ("Failed Conformance Test 17.14.0.1\n");
return;
Fail1:
printf ("Unable to open temp file for Conformance Test 17.14.0.1\n");
return;
Fail2:
printf ("Unable to close output file for Conformance Test 17.14.0.1\n");
return;
}