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#include <stdio.h>
typedef unsigned int uint32_t;
typedef int int32_t;
const char *boolstring(int val) {
return val ? "true" : "false";
}
int i32_eq(int32_t a, int32_t b) {
return (a == b);
}
int i32_neq(int32_t a, int32_t b) {
return (a != b);
}
int32_t i32_eq_select(int32_t a, int32_t b, int32_t c, int32_t d) {
return ((a == b) ? c : d);
}
int32_t i32_neq_select(int32_t a, int32_t b, int32_t c, int32_t d) {
return ((a != b) ? c : d);
}
struct pred_s {
const char *name;
int (*predfunc)(int32_t, int32_t);
int (*selfunc)(int32_t, int32_t, int32_t, int32_t);
};
struct pred_s preds[] = {
{ "eq", i32_eq, i32_eq_select },
{ "neq", i32_neq, i32_neq_select }
};
int main(void) {
int i;
int32_t a = 1234567890;
int32_t b = 345678901;
int32_t c = 1234500000;
int32_t d = 10001;
int32_t e = 10000;
printf("a = %12d (0x%08x)\n", a, a);
printf("b = %12d (0x%08x)\n", b, b);
printf("c = %12d (0x%08x)\n", c, c);
printf("d = %12d (0x%08x)\n", d, d);
printf("e = %12d (0x%08x)\n", e, e);
printf("----------------------------------------\n");
for (i = 0; i < sizeof(preds)/sizeof(preds[0]); ++i) {
printf("a %s a = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(a, a)));
printf("a %s a = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(a, a)));
printf("a %s b = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(a, b)));
printf("a %s c = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(a, c)));
printf("d %s e = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(d, e)));
printf("e %s e = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(e, e)));
printf("a %s a ? c : d = %d\n", preds[i].name, (*preds[i].selfunc)(a, a, c, d));
printf("a %s a ? c : d == c (%s)\n", preds[i].name, boolstring((*preds[i].selfunc)(a, a, c, d) == c));
printf("a %s b ? c : d = %d\n", preds[i].name, (*preds[i].selfunc)(a, b, c, d));
printf("a %s b ? c : d == d (%s)\n", preds[i].name, boolstring((*preds[i].selfunc)(a, b, c, d) == d));
printf("----------------------------------------\n");
}
return 0;
}
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