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因此,我想修改一个函数,其初始目的是使一个字符串的数组中不能有多于6个项目。下面是代码不允许重复的功能? (C++)
template<class ItemType>
bool Bag<ItemType>::Add(const ItemType& new_entry)
{
bool has_room_to_add = item_count_ < max_items_;
if (has_room_to_add)
{
items_[item_count_] = new_entry;
item_count_++;
} // end if
return has_room_to_add;
} // end add
这是我的尝试。
template<class ItemType>
bool set<ItemType>::Add(const ItemType& new_entry)
{
string checker[] = { "Joker", "Ace", "Two", "Three",
"Four", "Five", "Six", "Seven",
"Eight", "Nine", "Ten", "Jack",
"Queen", "King" };
bool has_room_to_add = item_count_ < max_items_;
//compares the new entry to every item in the string and if there is a duplicate, the loop breaks and nothing is added.
if (has_room_to_add)
{
for (int i =0; i <=13; i++)
{
if (checker[i] == items_[item_count_])
break; //ends loop
else if (i==13)
{
items_[item_count_] = new_entry;
break; //ends loop
} // end if
} // end for
} //end if
// increases item_count_ if a new item is added to a set.
if (items_[item_count_] == new_entry)
item_count_++;
return has_room_to_add;
} // end add
但这不但不能防止重复,它打破了不允许超过6个项目的原始目的,并且如果有更多的话会失灵。谁能告诉我我做错了什么?
使用'的std :: set'并限制条目6的数量也并不是一个好主意命名你的班级'set'。 – PaulMcKenzie 2014-09-25 22:18:24
你可以显示其余的课程包和设置吗? – 2014-09-25 22:22:23