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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
/**
* See `.inverse` in `struct libnormalform_sentence` (Variable literal implementation)
*/
static LIBNORMALFORM_SENTENCE *
variable_inverse(LIBNORMALFORM_SENTENCE *this)
{
LIBNORMALFORM_SENTENCE *ret = libnormalform_variable(this->data.literal.atom.variable);
if (ret)
ret->data.literal.inverted = this->data.literal.inverted ^ 1;
return ret;
}
/**
* See `.equals` in `struct libnormalform_sentence` (Variable literal implementation)
*/
static int
variable_equals(LIBNORMALFORM_SENTENCE *this, LIBNORMALFORM_SENTENCE *other, int *inv_out)
{
if (other->type != TYPE_VARIABLE || this->data.literal.atom.variable != other->data.literal.atom.variable)
return 0;
*inv_out = this->data.literal.inverted ^ other->data.literal.inverted;
return 1;
}
/**
* See `.evaluate` in `struct libnormalform_sentence` (Variable literal implementation)
*/
PURE static int
variable_evaluate(LIBNORMALFORM_SENTENCE *this, void *input)
{
(void) input;
return (this->data.literal.atom.variable->value != LIBNORMALFORM_FALSE) ^ this->data.literal.inverted;
}
LIBNORMALFORM_SENTENCE *
(libnormalform_variable)(struct libnormalform_variable *variable)
{
static const struct libnormalform_sentence prototype = {
PROTOTYPE_COMMON,
.type = TYPE_VARIABLE,
.inverse = &variable_inverse,
.equals = &variable_equals,
.evaluate = &variable_evaluate
};
LIBNORMALFORM_SENTENCE *ret = malloc(sizeof(*ret));
if (ret) {
*ret = prototype;
ret->hash = LITERAL_HASH(variable);
ret->data.literal.atom.variable = variable;
ret->data.literal.inverted = 0;
}
return ret;
}
#else
int
main(void)
{
TEST_BEGIN;
struct libnormalform_variable var1, var2;
struct libnormalform_function fun1, fun2;
struct libnormalform_map domain;
LIBNORMALFORM_SENTENCE *a, *b, *v1, *v2, *f1, *f2;
ASSUME(a = libnormalform_variable(&var1));
ASSERT(a->refcount == 1);
ASSERT(a->travel_index == 0);
ASSERT(a->travel_count == 0);
ASSERT(a->type == TYPE_VARIABLE);
ASSERT(a->data.literal.inverted == 0);
ASSERT(a->data.literal.atom.variable == &var1);
ASSERT_EQUAL(a, a);
var1.value = LIBNORMALFORM_TRUE;
ASSERT(libnormalform_evaluate(a) == 1);
var1.value = LIBNORMALFORM_FALSE;
ASSERT(libnormalform_evaluate(a) == 0);
ASSUME(b = libnormalform_variable(&var1));
ASSERT_EQUAL(a, b);
ASSUME(b = libnormalform_not(b));
ASSERT_INVEQUAL(a, b);
ASSERT_INVEQUAL(b, a);
libnormalform_free(b);
ASSUME(b = libnormalform_variable(&var2));
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(b = libnormalform_true());
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(b = libnormalform_false());
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(v1 = libnormalform_variable(&var1));
ASSUME(v2 = libnormalform_variable(&var2));
ASSUME(f1 = libnormalform_function(&fun1));
ASSUME(f2 = libnormalform_function(&fun2));
ASSERT_NOTEQUAL(a, f1);
ASSUME(b = libnormalform_and2(REF(v1), REF(v2)));
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(b = libnormalform_or2(REF(v1), REF(v2)));
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(b = libnormalform_xor2(REF(v1), REF(v2)));
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(b = libnormalform_all(&domain, REF(f1), REF(f2)));
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(b = libnormalform_any(&domain, REF(f1), REF(f2)));
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
ASSUME(b = libnormalform_one(&domain, REF(f1), REF(f2)));
ASSERT_NOTEQUAL(a, b);
ASSUME(b = libnormalform_not(b));
ASSERT_NOTEQUAL(a, b);
libnormalform_free(b);
libnormalform_free(a);
libnormalform_free(v1);
libnormalform_free(v2);
libnormalform_free(f1);
libnormalform_free(f2);
TEST_END;
}
#endif
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