ORCA-C/Tests/Spec.Deviance/SPD17.3.0.2.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

36 lines
770 B
C++

/* Deviance Test 17.3.0.2: Ensure illegal setvbuf calls are detected */
#include <stdio.h>
int main (void)
{
FILE *f1;
char buf [80];
int i;
f1 = fopen ("3/tmp", "w"); /* call setvbuf after I/O already done */
if (f1 == NULL)
goto Fail1;
i = fputc ('a', f1); /* write a character to the file */
if (i == EOF)
goto Fail2;
i = setvbuf (f1, NULL, _IONBF, 0);
if (!i)
goto Fail;
printf ("Passed Deviance Test 17.3.0.2\n");
return 0;
Fail:
printf ("Failed Deviance Test 17.3.0.2\n");
return 0;
Fail1:
printf ("Unable to open work file for Deviance Test 17.3.0.2\n");
return 0;
Fail2:
printf ("Unable to write to file for Deviance Test 17.3.0.2\n");
return 0;
}