ORCA-C/Tests/Conformance/C15.2.0.1.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

42 lines
880 B
C++

/* Conformance Test 15.2.0.1: Verification of strcmp, strncmp functions */
#include <string.h>
int printf(const char *, ...);
int main (void)
{
int i;
char s1 [] = "this is a string argument ";
char s2 [] = "this is a string argument!";
char s3 [160] = "";
i = strcmp (s1, s2); /* ensure strcmp reports s1 < s2 */
if (i >= 0)
goto Fail;
i = strcmp (s2, s1);
if (i <= 0)
goto Fail;
i = strncmp (s1, s2, 100); /* should compare all chars */
if (i >= 0)
goto Fail;
i = strncmp (s1, s2, 25); /* should compare 1st 25 chars */
if (i != 0)
goto Fail;
i = strncmp (s1, s2, -90L); /* should just return 0 */
if (i != 0)
goto Fail;
printf ("Passed Conformance Test 15.2.0.1\n");
return 0;
Fail:
printf ("Failed Conformance Test 15.2.0.1\n");
}