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cc65/test/val/bug1462-biefield-assign-3.c
2022-09-18 22:29:41 +08:00

96 lines
1.6 KiB
C

/* issue #1462 - Bit-fields are still broken */
/* More tests on "op= expression result value" that a naive fix might fail with */
#include <stdio.h>
typedef struct {
signed int a : 3;
unsigned int b : 3;
signed int c : 3;
unsigned int d : 3;
} T1;
typedef struct {
signed int a : 3;
signed int b : 3;
signed int c : 3;
signed int d : 3;
} T2;
int failures1 = 0;
int failures2 = 0;
void test1(void)
{
T1 a = { 3, 3, 3, 3 };
int i;
i = a.a -= a.b + a.c;
if (i != -3 || a.a != -3) {
++failures1;
}
printf("i = %d, a.a = %d\n", i, a.a);
a.b = i = a.b / -1;
if (i != -3 || a.b != 5) {
++failures1;
}
printf("i = %d, a.b = %d\n", i, a.b);
i = a.c = 0;
if (i != 0 || a.c != 0) {
++failures1;
}
printf("i = %d, a.c = %d\n", i, a.c);
i = a.d /= -1;
if (i != 5 || a.d != 5) {
++failures1;
}
printf("i = %d, a.d = %d\n", i, a.d);
printf("Failures: %d\n", failures1);
}
void test2(void)
{
T2 b = { 3, 3, 4, 4 };
int i;
i = b.a++;
if (i != 3 || b.a != -4) {
++failures2;
}
printf("i = %d, b.a = %d\n", i, b.a);
i = ++b.b;
if (i != -4 || b.b != -4) {
++failures2;
}
printf("i = %d, b.b = %d\n", i, b.b);
i = b.c--;
if (i != -4 || b.c != 3) {
++failures2;
}
printf("i = %d, b.c = %d\n", i, b.c);
i = --b.d;
if (i != 3 || b.d != 3) {
++failures2;
}
printf("i = %d, b.d = %d\n", i, b.d);
printf("Failures: %d\n", failures2);
}
int main(void)
{
test1();
test2();
return failures1 + failures2;
}