ORCA-C/Tests/Conformance/C17.8.0.6.CC
Stephen Heumann 91d33b586d Fix various C99+ conformance issues and bugs in test cases.
The main changes made to most tests are:

*Declarations always include explicit types, not relying on implicit int. The declaration of main in most test programs is changed to be "int main (void) {...}", adding an explicit return type and a prototype. (There are still some non-prototyped functions, though.)

*Functions are always declared before use, either by including a header or by providing a declaration for the specific function. The latter approach is usually used for printf, to avoid requiring ORCA/C to process stdio.h when compiling every test case (which might make test runs noticeably slower).

*Make all return statements in non-void functions (e.g. main) return a value.

*Avoid some instances of undefined behavior and type errors in printf and scanf calls.

Several miscellaneous bugs are also fixed.

There are still a couple test cases that intentionally rely on the C89 behavior, to ensure it still works.
2022-10-17 20:17:24 -05:00

50 lines
1.1 KiB
C++

/* Conformance Test 17.8.0.6: Verification of fscanf, s format code */
#include <stdio.h>
#include <string.h>
int main (void)
{
FILE *f1;
int i, j;
char string [50] = "hey, hey!";
f1 = fopen ("3/tmp", "wb+"); /* open input file for test */
if (f1 == NULL)
goto Fail1;
fprintf(f1, " oneLongWord ten_chars!andMore");
rewind(f1);
i = fscanf (f1, "%*s"); /* no assignment made */
if (i != 0)
goto Fail;
if (strcmp (string, "hey, hey!"))
goto Fail;
i = fscanf (f1, "%10s", string); /* test assignment to string */
if (i != 1)
goto Fail;
if (strcmp (string, "ten_chars!"))
goto Fail;
i = fclose (f1); /* close the file and quit */
if (i == EOF)
goto Fail2;
printf ("Passed Conformance Test 17.8.0.6\n");
return 0;
Fail:
printf ("Failed Conformance Test 17.8.0.6\n");
return 0;
Fail1:
printf ("Unable to open input file for Conformance Test 17.8.0.6\n");
return 0;
Fail2:
printf ("Unable to close input file for Conformance Test 17.8.0.6\n");
return 0;
}