ORCA-C/Tests/Conformance/C3.5.1.1.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

86 lines
1.7 KiB
C++

/* Conformance Test 3.5.1.1: Verification of #if constant expressions */
int printf(const char *, ...);
#define FIVE 5
#define SIX 6
#if 2 * 8
#if 4 / 3
#if 209 - 8
#if 32760 + 7
#if (5 == 5)
#if (2 != 0)
#define NUM1 (2*8) | (4/3) ^ (209-208) & (32760+7)
#else
#define NUM1 5
#endif
#else
#define NUM1 4
#endif
#else
#define NUM1 3
#endif
#else
#define NUM1 2
#endif
#else
#define NUM1 1
#endif
#else
#define NUM1 0
#endif
#if (6 < 32767)
#if (20004 <= 20004)
#if (59876 > 59875)
#if (671234 >= 671234)
#if ((2) && (3))
#if ((0) || (1))
#define NUM2 2147 % 3 << 3 >> 2
#else
#define NUM2 5
#endif
#else
#define NUM2 4
#endif
#else
#define NUM2 3
#endif
#else
#define NUM2 2
#endif
#else
#define NUM2 1
#endif
#else
#define NUM2 0
#endif
#if (-32768)
#if ~0x7e
#if !0
#define NUM3 NUM1 ? NUM2 : 187
#else
#define NUM3 2
#endif
#else
#define NUM3 1
#endif
#else
#define NUM3 0
#endif
#if (defined(FIVE)) && (defined(SIX)) && (NUM1 == 0x10) && (NUM2 == 4)\
&& (NUM3 == NUM2)
int main (void)
{
printf ("Passed Conformance Test 3.5.1.1\n");
}
#else
int main (void)
{
printf ("Failed Conformance Test 3.5.1.1\n");
}
#endif