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ce9acda014 ... 802d63641c

2 changed files with 56 additions and 267 deletions
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194
src/list.c
View File

@ -206,7 +206,6 @@ static void list_print(struct _list* self)
*/ */
struct _list* list_slice(struct _list *self, int start, int end, int step) struct _list* list_slice(struct _list *self, int start, int end, int step)
{ {
#if 0
assert(self != NULL); assert(self != NULL);
int i = 0; int i = 0;
bool unlimited = false; bool unlimited = false;
@ -250,13 +249,6 @@ struct _list* list_slice(struct _list* self, int start, int end, int step)
} }
start += self->size(self); start += self->size(self);
} }
else
{
if (start > self->size(self))
{
start = self->size(self);
}
}
if(end < 0) if(end < 0)
{ {
@ -266,13 +258,6 @@ struct _list* list_slice(struct _list* self, int start, int end, int step)
} }
end += self->size(self); end += self->size(self);
} }
else
{
if (end > self->size(self))
{
end = self->size(self);
}
}
// printf("start = %d\n", start); // printf("start = %d\n", start);
// printf("end = %d\n", end); // printf("end = %d\n", end);
@ -338,185 +323,6 @@ struct _list* list_slice(struct _list* self, int start, int end, int step)
done: done:
return list; return list;
#else
assert(self != NULL);
list_t list = NULL;
bool empty = false;
uint32_t capacity = 1;
int i = 0;
bool contain_last_obj = false;
if (step == 0)
{
return NULL;
}
if (step > 0)
{
// special case
if (start == LIST_UNLIMITED)
{
start = 0;
}
if (end == LIST_UNLIMITED)
{
end = self->size(self);
contain_last_obj = true;
}
// [start_max, end_min] start < end and limit start_max and end_min
if (start >= end || start >= self->size(self) || end < -self->size(self))
{
empty = true;
}
if (empty != true)
{
if (start < 0)
{
if (start < -self->size(self))
{
start = -self->size(self);
}
start += self->size(self);
}
if (end < 0)
{
end += self->size(self);
}
else
{
if (end > self->size(self))
{
end = self->size(self);
contain_last_obj = true;
}
}
if (empty != true)
{
// calc capacity
capacity = end - start;
}
list = list_new2(self->_obj_size, capacity);
if (list == NULL)
{
return NULL;
}
list->compare = self->compare;
list->print_obj = self->print_obj;
if (contain_last_obj != true)
{
for (i = start; i < end; i += step)
{
list->append(list, (char*)self->obj + i * self->_obj_size);
}
}
else
{
for (i = start; i <= end; i += step)
{
list->append(list, (char*)self->obj + i * self->_obj_size);
}
}
}
else
{
list = list_new2(self->_obj_size, capacity);
if (list == NULL)
{
return NULL;
}
list->compare = self->compare;
list->print_obj = self->print_obj;
}
}
else
{
// special case
if (start == LIST_UNLIMITED)
{
start = self->size(self) - 1;
}
if (end == LIST_UNLIMITED)
{
end = 0;
contain_last_obj = true;
}
// [start_min, end_max] start > end and limit start_min and end_max
if (start <= end || end >= self->size(self) || start < -self->size(self))
{
empty = true;
}
if (empty != true)
{
if (start < 0)
{
if (start < -self->size(self))
{
start = -self->size(self);
}
start += self->size(self);
}
else
{
if (start > self->size(self))
{
start = self->size(self) - 1;
contain_last_obj = true;
}
}
if (end < 0)
{
end += self->size(self);
}
if (empty != true)
{
// calc capacity
capacity = end - start;
}
list = list_new2(self->_obj_size, capacity);
if (list == NULL)
{
return NULL;
}
list->compare = self->compare;
list->print_obj = self->print_obj;
if (contain_last_obj != true)
{
for (i = start; i > end; i += step)
{
list->append(list, (char*)self->obj + i * self->_obj_size);
}
}
else
{
for (i = start; i >= end; i += step)
{
list->append(list, (char*)self->obj + i * self->_obj_size);
}
}
}
else
{
list = list_new2(self->_obj_size, capacity);
if (list == NULL)
{
return NULL;
}
list->compare = self->compare;
list->print_obj = self->print_obj;
}
}
return list;
#endif
} }
static bool list_iter_hasnext(struct _iterator* iter) static bool list_iter_hasnext(struct _iterator* iter)

35
test/test_list.c
View File

@ -471,17 +471,6 @@ static void test_list_slice_empty(void)
TEST_ASSERT_TRUE(list2->empty(list2)); TEST_ASSERT_TRUE(list2->empty(list2));
list_free(&list2); list_free(&list2);
// -------------------- empty --------------------
list2 = list->slice(list, len, len + 10, 1); // if start > start_max
TEST_ASSERT_NOT_NULL(list2);
TEST_ASSERT_TRUE(list2->empty(list2));
list_free(&list2);
list2 = list->slice(list, -len - 10, -len, 1); // if end < end_min
TEST_ASSERT_NOT_NULL(list2);
TEST_ASSERT_TRUE(list2->empty(list2));
list_free(&list2);
list_free(&list); list_free(&list);
} }
@ -518,18 +507,6 @@ static void test_list_slice_positive(void)
} }
list_free(&list2); list_free(&list2);
// python: list[0:11] if len(list) == 10
list2 = list->slice(list, 0, len + 1, 1);
TEST_ASSERT_NOT_NULL(list2);
// list2->print(list2); printf("\n");
TEST_ASSERT_EQUAL_INT(len, list2->size(list2));
for(i = 0; i < list2->size(list2); i++)
{
TEST_ASSERT_TRUE(list2->get(list2, i, &temp));
TEST_ASSERT_EQUAL_INT(data[i], temp);
}
list_free(&list2);
// python: list[-6:8] or list[-6:-2] or list[4:8] // python: list[-6:8] or list[-6:-2] or list[4:8]
list2 = list->slice(list, 4, 8, 1); list2 = list->slice(list, 4, 8, 1);
TEST_ASSERT_NOT_NULL(list2); TEST_ASSERT_NOT_NULL(list2);
@ -637,9 +614,9 @@ static void test_list_slice_negative(void)
} }
list_free(&list2); list_free(&list2);
// -------------------- start_limit -------------------- // -------------------- step == 2 --------------------
// list[-len-1:-1] // list[-30:-1]
list2 = list->slice(list, -len-1, -1, 1); list2 = list->slice(list, -30, -1, 1);
TEST_ASSERT_NOT_NULL(list2); TEST_ASSERT_NOT_NULL(list2);
// list2->print(list2); printf("\n"); // list2->print(list2); printf("\n");
TEST_ASSERT_EQUAL_INT(len - 1, list2->size(list2)); TEST_ASSERT_EQUAL_INT(len - 1, list2->size(list2));
@ -650,6 +627,12 @@ static void test_list_slice_negative(void)
} }
list_free(&list2); list_free(&list2);
// list[-30:-10]
list2 = list->slice(list, -30, -10, 1);
TEST_ASSERT_NOT_NULL(list2);
TEST_ASSERT_TRUE(list2->empty(list2));
list_free(&list2);
list_free(&list); list_free(&list);
} }