在将一个函数的指针数组传递给另一个函数时遇到麻烦

Having trouble with passing array of pointers to functions to other functions

本文关键字：函数 另一个 麻烦 遇到 数组 一个 指针      更新时间：2023-10-16

我得到这个错误:

error C2664: 'KaibaMainPhase' : cannot convert parameter 1 from
'void (__cdecl *[2])(std::vector<_Ty> &,
std::vector<_Ty>&,
std::vector<std::vector<_Ty>> &,
std::vector<_Ty> &,std::vector<_Ty> &)'
to 'void (__cdecl *)(std::vector<_Ty> &,
std::vector<Card> &,
std::vector<Card> &)"

下面是我的代码:

class Card
{
public:
string GetName() {return Name;}
void SetName(const string& setName) {Name = setName; } 
void SetType(const string& setType) {Type = setType; }
private:
string Name;
string Type;
};
vector< vector<Card> > Field(4, vector<Card>(5));
vector<Card> KaibaHand;
vector<Card>::iterator KH;
vector<Card> YugiHand;
vector<Card>::iterator YH;
vector<Card> KaibaGraveyard;
vector<Card>::iterator KG;
vector<Card> YugiGraveyard;
vector<Card>::iterator YG;

void KaibaBeginning(vector<Card> &KaibaHand, vector<Card> &KaibaDeck);
void DrawForKaiba(vector<Card> &KaibaHand, vector<Card> &KaibaDeck);
void KaibaMainPhase(void (*)(vector< vector<Card> > &Field, vector<Card> &KaibaGraveyard,
vector<Card> &YugiGraveyard), vector<Card> &KaibaHand, vector<Card> &KaibaDeck, vector<
vector<Card> > &Field, vector<Card> &YugiGraveyard, vector<Card> &KaibaGraveyard);

void FieldFunction(vector< vector<Card> > &Field);
void KaibaHandFunction(vector<Card> &KaibaHand);
void KaibaGraveyardFunction(vector<Card> &KaibaGraveyard);
void YugiGraveyardFunction(vector<Card> &YugiGraveyard);
void KaibaSummon(vector< vector<Card> > &Field, vector<Card> &KaibaHand, int HandNumber, int
MonstCount);
void YugiSummon(vector< vector<Card> > &Field, vector<Card> &YugiHand, int HandNumber, int
MonstCount);
void KaibaDiscard(int HandNumber, vector<Card> &KaibaHand, vector<Card> &KaibaGraveyard);
void YugiDiscard(int HandNumber, vector<Card> &YugiHand, vector<Card> &YugiGraveyard);

void KaibaMainPhase(void (*)(vector< vector<Card> > &Field, vector<Card> &KaibaGraveyard,
vector<Card> &YugiGraveyard), vector<Card> &KaibaHand, vector<Card> &KaibaDeck,
vector<vector<Card> > &Field, vector<Card> &YugiGraveyard, vector<Card> &KaibaGraveyard);

void HEAVYSTORM(vector<Card> &KaibaHand, vector<Card> &KaibaDeck, vector< vector<Card> > &Field,
vector<Card> &KaibaGraveyard, vector<Card> &YugiGraveyard)
{
cout<<"This card destroys ALL magic and traps cards on the field!!"<<endl;
    for (int i=0; i<5; i++)
    {
        YugiGraveyard.push_back(Field[0][i]);
    Field[0][i]=Card();
        KaibaGraveyard.push_back(Field[3][i]);
        Field[3][i]=Card();
    }   
}
void POTOFGREED(vector<Card> &KaibaHand, vector<Card> &KaibaDeck, vector< vector<Card> > &Field,
vector<Card> &KaibaGraveyard, vector<Card> &YugiGraveyard)
{
DrawForKaiba(KaibaHand, KaibaDeck);
}

int main()
{
void (* pFunct[2]) (vector<Card> &KaibaHand, vector<Card> &KaibaDeck, vector< vector<Card> >
&Field, vector<Card> &KaibaGraveyard, vector<Card> &YugiGraveyard);
pFunct[0] = HEAVYSTORM;
pFunct[1] = POTOFGREED;

KaibaMainPhase(pFunct, KaibaHand, KaibaDeck, Field, YugiGraveyard, KaibaGraveyard);
}

void KaibaMainPhase( void (*pFunct)(vector<Card> &KaibaHand, vector<Card> &KaibaDeck, vector<
vector<Card> > &Field, vector<Card> &KaibaGraveyard, vector<Card> &YugiGraveyard), vector<Card>
&KaibaHand, vector<Card> &KaibaDeck, vector< vector<Card> > &Field, vector<Card> &YugiGraveyard,
vector<Card> &KaibaGraveyard)
{
int HandNum;
cout<<"Enter a number: "<<endl;
cin>>HandNum;
cout<<"You played "<<Field[3][HandNum-1].GetName();
pFunct[HandNum-1](KaibaHand, KaibaDeck, Field, KaibaGraveyard, YugiGraveyard);//
}
void KaibaHandFunction(vector<Card> &KaibaHand)
{
    cout<<endl<<"Kaiba's hand contains: "<<endl;
    for (KH=KaibaHand.begin(); KH<KaibaHand.end(); KH++)
    {
        cout<<KH->GetName()<<endl;
    }
}
void YugiHandFunction(vector<Card> &YugiHand)
{
    cout<<endl<<"Yugi's hand contains: "<<endl;
    for (YH=YugiHand.begin(); YH<YugiHand.end(); YH++)
    {
        cout<<YH->GetName()<<endl;
    }
}
void KaibaGraveyardFunction(vector<Card> &KaibaGraveyard)
{
        cout<<endl<<"Kaiba's graveyard contains: "<<endl;
        for (KG=KaibaGraveyard.begin(); KG<KaibaGraveyard.end(); KG++)
        {
            cout<<KG->GetName()<<endl; //SAME AS (*gt).GetName
        }
        cout<<"n";
}
void YugiGraveyardFunction(vector<Card> &YugiGraveyard)
{
        cout<<endl<<"Yugi's graveyard contains: "<<endl;
        for (YG=YugiGraveyard.begin(); YG<YugiGraveyard.end(); YG++)
        {
            cout<<YG->GetName()<<endl; //SAME AS (*gt).GetName
        }
        cout<<"n";

这一行:

void KaibaMainPhase(void (*)(vector< vector<Card> > &Field, vector<Card> &KaibaGraveyard, vector<Card> &YugiGraveyard), vect....

您声明KaibaMainPhase的第一个参数将是3个参数的函数。

void KaibaMainPhase(
    /* Function Pointer */ void (*)(
    /* Param #1         */ vector< vector<Card> > &Field,
    /* Param #2         */ vector<Card> &KaibaGraveyard,
    /* Param #3         */ vector<Card> &YugiGraveyard), /*other parameters to KaibaMainPhase*/....

之后，在这段代码中:

pFunct[0] = HEAVYSTORM;
[...]
KaibaMainPhase(pFunct, KaibaHand, Kaiba.....

你正在传递pFunct，它是一个包含两个不同函数的数组。
数组不同于函数指针。

但是，即使你通过了pFunct[0]，它也不会起作用。pFunct被声明为函数指针数组，其中每个函数有5个参数:

/* Array of 2 fnct ptrs */ void (* pFunct[2])(
/* Param #1 */ vector<Card> &KaibaHand,
/* Param #2 */ vector<Card> &KaibaDeck,
/* Param #3 */ vector< vector<Card> > &Field,
/* Param #4 */ vector<Card> &KaibaGraveyard,
/* Param #5 */ vector<Card> &YugiGraveyard
);

但是函数KaibaMainPhase期望一个只接受3个形参的函数

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