ORCA-C/Tests/Conformance/C3.3.6.1.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

35 lines
665 B
C++

/* Conformance Test 3.3.6.1: Verify precedence setting with parentheses */
/* in macro expansions */
int printf(const char *, ...);
#define SQUARE1(x) x * x
#define SQUARE2(x) (x) * (x)
#define SQUARE3(x) ( (x) * (x) )
int main (void)
{
float y;
int i;
y = 3.5;
y = (int) SQUARE1 (y + 1);
if (y != 7.5)
goto Fail;
y = (int) SQUARE2 (y + 1);
if (y != 68.0)
goto Fail;
i = (int) SQUARE3 (y + 1);
if (i != 4761)
goto Fail;
printf ("Passed Conformance Test 3.3.6.1\n");
return 0;
Fail:
printf ("Failed Conformance Test 3.3.6.1\n");
}