ORCA-C/Tests/Spec.Conform/SPC4634.1.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

85 lines
1.6 KiB
C++

/* File spc4634.1.cc; the second source file which accesses the external */
/* variables defined in the main source file. Part of Special Conformance */
/* Test 4.6.3.4 */
#include <math.h>
int printf(const char *, ...);
int ExternTest (void)
{
int count = 0;
struct S { int a;
float b; };
union U { int i;
long L; };
/* Declare extern pointers */
extern int (*i2Ptr);
extern char (*ch2Ptr);
extern long (*L2Ptr);
extern comp (*c2Ptr);
extern float (*f2Ptr);
extern double (*d2Ptr);
extern extended (*e2Ptr);
extern unsigned int (*ui2Ptr);
extern unsigned long (*uL2Ptr);
extern struct S (*struct2Ptr);
extern union U (*union2Ptr );
count++;
if (*(i2Ptr) != 9)
goto Fail;
count++;
if (*(ch2Ptr) != 'z')
goto Fail;
count++;
if (*(L2Ptr) != 27)
goto Fail;
count++;
if (*(c2Ptr) != 100000)
goto Fail;
count++;
if (fabs (*(f2Ptr) - 12.3456) > 0.0001)
goto Fail;
count++;
if (fabs (*(d2Ptr) - 0.65) > 0.0001)
goto Fail;
count++;
if (fabs (*(e2Ptr) - 4.7) > 0.0001)
goto Fail;
count++;
if (*(ui2Ptr) != 20)
goto Fail;
count++;
if (*(uL2Ptr) != 88)
goto Fail;
count++;
if ((struct2Ptr->a != 999) || (fabs (struct2Ptr->b - 9.99) > 0.0001))
goto Fail;
count++;
if (union2Ptr->i != 0)
goto Fail;
return 0;
Fail:
printf ("Failed ExternTest: count = %d\n", count);
return 1;
}