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/* Test conditional operator with pointer operands
*/
/* In addition to the usual promotion rules that apply to the operands */
/* to all operators, the conditional operator has some special rules */
/* that apply to pointer types (as well as arrays, since an array */
/* reference is interchangable with a pointer to the first element): */
/* 1. If the operands are a pointer and NULL, the resultant type */
/* is that of the non-NULL pointer. NULL can be defined as either */
/* 0 or (void *)0. */
/* 2. If the operands are a non-void pointer and a void (non-NULL) */
/* pointer, the resultant type is that of the void pointer. */
#include <testfwk.h>
int testarray[5] = {3,2,7,6,8};
unsigned char cond;
void
setcond(unsigned char state)
{
cond = state;
}
int
deref1(int *ip)
{
return *ip;
}
int
deref2(char *cp)
{
int *ip = (void *)cp;
return *ip;
}
void
testCondOpPtrTypes1(void)
{
#if !defined(__SDCC_pdk14) // Lack of memory
int *ip1;
int *ip2;
void *vp1;
void *vp2;
char *cp;
ip1 = &(testarray[2]);
setcond(1);
ip2 = cond ? testarray : ip1; /* int[], int * ==> int * */
ASSERT (*ip2 == 3);
ip2 = cond ? ip1 : testarray; /* int *, int[] ==> int * */
ASSERT (*ip2 == 7);
ip2 = cond ? testarray : 0; /* int[], 0 ==> int * */
ASSERT (*ip2 == 3);
ip2 = cond ? ip1 : 0; /* int *, 0 ==> int * */
ASSERT (*ip2 == 7);
ip2 = cond ? testarray : (void *)0; /* int[], NULL ==> int * */
ASSERT (*ip2 == 3);
ip2 = cond ? ip1 : (void *)0; /* int *, NULL ==> int * */
ASSERT (*ip2 == 7);
vp1 = &(testarray[1]);
ip2 = testarray;
vp2 = cond ? testarray : vp1; /* int[], void * ==> void * */
ASSERT (vp2 == ip2);
vp2 = cond ? ip1 : vp1; /* int *, void * ==> void * */
ASSERT (vp2 == ip1);
cp = cond ? testarray : vp1; /* int[], void * ==> void * */
ASSERT ((int *)cp == ip2);
cp = cond ? ip1 : vp1; /* int *, void * ==> void * */
ASSERT ((int *)cp == ip1);
ASSERT (deref1 (cond ? testarray : ip1) == 3);
ASSERT (deref1 (cond ? ip1 : testarray) == 7);
ASSERT (deref1 (cond ? testarray : 0) == 3);
ASSERT (deref1 (cond ? ip1 : 0) == 7);
ASSERT (deref1 (cond ? testarray : (void *)0) == 3);
ASSERT (deref1 (cond ? ip1 : (void *)0) == 7);
/* These resolve to type void * and so are compatible with */
/* the char * parameter */
ASSERT (deref2 (cond ? testarray : vp1) == 3);
ASSERT (deref2 (cond ? ip1 : vp1) == 7);
#endif
}
void
testCondOpPtrTypes2(void)
{
#if !defined(__SDCC_pdk14) // Lack of memory
int *ip1;
int *ip2;
void *vp1;
void *vp2;
char *cp;
ip1 = &(testarray[2]);
setcond(0);
ip2 = cond ? testarray : ip1; /* int[], int * ==> int * */
ASSERT (*ip2 == 7);
ip2 = cond ? ip1 : testarray; /* int *, int[] ==> int * */
ASSERT (*ip2 == 3);
ip2 = cond ? 0 : testarray; /* 0, int[] ==> int * */
ASSERT (*ip2 == 3);
ip2 = cond ? 0: ip1; /* 0, int * ==> int * */
ASSERT (*ip2 == 7);
ip2 = cond ? (void *)0 : testarray; /* NULL, int[] ==> int * */
ASSERT (*ip2 == 3);
ip2 = cond ? (void *)0 : ip1; /* NULL, int * ==> int * */
ASSERT (*ip2 == 7);
vp1 = &(testarray[1]);
ip2 = testarray;
vp2 = cond ? vp1 : testarray; /* void *, int[] ==> void * */
ASSERT (vp2 == ip2);
vp2 = cond ? vp1 : ip1; /* void *, int * ==> void * */
ASSERT (vp2 == ip1);
cp = cond ? vp1 : testarray; /* void *, int[] ==> void * */
ASSERT ((int *)cp == ip2);
cp = cond ? vp1 : ip1; /* void *, int * ==> void * */
ASSERT ((int *)cp == ip1);
ASSERT (deref1 (cond ? testarray : ip1) == 7);
ASSERT (deref1 (cond ? ip1 : testarray) == 3);
ASSERT (deref1 (cond ? 0 : testarray) == 3);
ASSERT (deref1 (cond ? 0 : ip1) == 7);
ASSERT (deref1 (cond ? (void *)0 : testarray) == 3);
ASSERT (deref1 (cond ? (void *)0 : ip1) == 7);
/* These resolve to type void * and so are compatible with */
/* the char * parameter */
ASSERT (deref2 (cond ? vp1 : testarray) == 3);
ASSERT (deref2 (cond ? vp1 : ip1) == 7);
#endif
}
int
foo0(int a, int b, int c)
{
return a > 10 ? ++b, ++c : b + c;
}
int
foo1(int a, int b, int c, int d)
{
return a > 20 ? ++b, ++c, ++d + b + c : b < 100 ? c + ++d : c - --d;
}
void
testBug2412(void)
{
ASSERT (foo0 (2, 4, 5) == 9);
ASSERT (foo0 (72, 84, 5) == 6);
ASSERT (foo0 (7, 84, 75) == 159);
ASSERT (foo1 (110, 12, 13, 15) == 43);
ASSERT (foo1 (18, 12, 13, 15) == 29);
ASSERT (foo1 (12, 129, 13, 13) == 1);
}
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