ORCA-C/Tests/Conformance/C18.1.0.1.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

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/* Conformance Test 18.1.0.1: Verification of calloc library function */
#include <stddef.h>
#include <stdlib.h>
int printf(const char *, ...);
struct S { int i; extended e; char ch [40]; };
int main (void)
{
char *rgn, *ptr1;
int i;
rgn = (char *) calloc (50, sizeof (struct S));
if (rgn == NULL)
goto Fail1;
ptr1 = rgn;
for (i = 0; i < 2600; i++)
{
if (*rgn != 0)
goto Fail;
rgn += 1;
}
free (ptr1);
printf ("Passed Conformance Test 18.1.0.1\n");
return 0;
Fail:
printf("%u\n", i);
printf ("Failed Conformance Test 18.1.0.1\n");
return 0;
Fail1:
printf ("Unable to allocate memory for Conformance Test 18.1.0.1\n");
return 0;
}