ORCA-C/Tests/Conformance/C7.5.1.4.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

53 lines
1.2 KiB
C++

/* Conformance Test 7.5.1.4: Verification of type casting: int to long */
#include <stdio.h>
int main (void)
{
signed char ch = 0x87;
int i = -32767;
short sh = -12345;
long L [6];
unsigned char uch = 0x95;
unsigned int ui = 0xabcd;
unsigned short ush = 0x8765;
unsigned long uL [6];
/* Test conversion from shorter integer to long. */
L [0] = (long) ush;
L [1] = (long) ui;
L [2] = (long) uch;
L [3] = (long) sh;
L [4] = (long) i;
L [5] = (long) ch;
if ((L [0] != 0x8765) || (L [1] != 0xaBcD) || (L [2] != 149) ||
(L [3] != -12345) || (L [4] != -32767) || (L [5] != -121))
goto Fail;
/* Test conversion from shorter integer to unsigned long. */
uL [0] = (unsigned long) ush;
uL [1] = (unsigned long) ui;
uL [2] = (unsigned long) uch;
uL [3] = (unsigned long) sh;
uL [4] = (unsigned long) i;
uL [5] = (unsigned long) ch;
if ((uL [0] != 0x8765) || (uL [1] != 0xaBcD) || (uL [2] != 0x95) ||
(uL [3] != 0xFFFFcfc7) || (uL [4] != 0xffff8001) ||
(uL [5] != 0xffffff87))
goto Fail;
printf ("Passed Conformance Test 7.5.1.4\n");
return 0;
Fail:
printf ("Failed Conformance Test 7.5.1.4\n");
}