mirror of
https://github.com/byteworksinc/ORCA-C.git
synced 2024-11-19 03:07:00 +00:00
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/* Conformance Test 17.6.0.2: Verification of fgetc, getc, and ungetc with */
|
|
/* a binary stream */
|
|
|
|
#include <stdio.h>
|
|
|
|
main ()
|
|
{
|
|
FILE *f1;
|
|
int i, j;
|
|
char ch;
|
|
|
|
|
|
f1 = fopen ("3/tmp", "w+b"); /* create binary file to work on */
|
|
if (f1 == NULL)
|
|
goto Fail1;
|
|
for (ch = 'a', i = 0; i < 26; i++)
|
|
{
|
|
j = fputc (ch, f1);
|
|
if ((char) j != ch)
|
|
goto Fail2;
|
|
ch++;
|
|
}
|
|
|
|
rewind (f1); /* check file contents with fgetc */
|
|
ch = 'a';
|
|
while ((i = fgetc (f1)) != EOF)
|
|
if ( (char) i != ch++ )
|
|
goto Fail;
|
|
if (! (feof (f1)) ) /* ensure end-of-file reached */
|
|
goto Fail;
|
|
j = ungetc (i, f1); /* not an error to try to push */
|
|
if (j != EOF) /* back EOF */
|
|
goto Fail;
|
|
|
|
j = fseek (f1, 0L, SEEK_SET); /* test getc with temp file */
|
|
if (j)
|
|
goto Fail3;
|
|
j = ungetc (i, f1); /* ungetc should return an error */
|
|
if (j != EOF) /* after seeking on the file */
|
|
goto Fail; /* before reading */
|
|
ch = 'a';
|
|
while ((i = getc (f1)) != EOF)
|
|
if ( (char) i != ch++ )
|
|
goto Fail;
|
|
if (! (feof (f1)) ) /* ensure end-of-file reached */
|
|
goto Fail;
|
|
j = ungetc (i, f1); /* not an error to try to push */
|
|
if (j != EOF) /* back EOF */
|
|
goto Fail;
|
|
|
|
i = fclose (f1); /* close the file and quit */
|
|
if (i == EOF)
|
|
goto Fail4;
|
|
|
|
printf ("Passed Conformance Test 17.6.0.2\n");
|
|
return;
|
|
|
|
Fail:
|
|
printf ("Failed Conformance Test 17.6.0.2\n");
|
|
return;
|
|
|
|
Fail1:
|
|
printf ("Unable to open temp file for Conformance Test 17.6.0.2\n");
|
|
return;
|
|
|
|
Fail2:
|
|
printf ("Unable to write to temp file for Conformance Test 17.6.0.2\n");
|
|
return;
|
|
|
|
Fail3:
|
|
printf ("Unable to seek to temp file for Conformance Test 17.6.0.2\n");
|
|
return;
|
|
|
|
Fail4:
|
|
printf ("Unable to close temp file for Conformance Test 17.6.0.2\n");
|
|
return;
|
|
}
|