现在我尝试使用namePlayers函数动态地将多个名称分配到结构数组中。但是，当我尝试编译时，我收到此错误：
|39|error: no matching function for call to 'namePlayers'
#include <iostream>
#include <cstdlib>
#include <cmath>
using namespace std;
struct Game{
string name;
int position;
};
void namePlayers(Game *player[], int &numberOfPlayers);
/*void play(int &size, int &player1, int &player2, int cardPile[], int board[]);
void displayRules();
int takeTurn(int &size, int &player, int cardPile[], int board[], int &opposingPlayer);
int shuffleDeck(int &size, int cardPile[]);
int switchPlaces(int &player, int &opposingPlayer);
int obstacles(int &player, int board[]);
void showState(int &player1, int &player2);
int reshuffle(int &size, int cardPile[]);
void youWin(int &player1, int &player2);*/
int main()
{
int size = 0;
int board[] = {0, 1, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0};
int cardPile[10] = {1, 1, 2, 2, 3, 3, 4, 4, 0, 5};
int numberOfPlayers = 0;
int player1 = 0;
int player2 = 0;
Game *player = new Game[numberOfPlayers];
namePlayers(player, numberOfPlayers);
for(int i = 0; i < numberOfPlayers; i++){
cout << player[i].name << endl;
}
//play(size, player1, player2, cardPile, board);
return 0;
}
void namePlayers(Game *player[], int &numberOfPlayers){
cout << "How many players are playing(up to 6)?" << endl;
cin >> numberOfPlayers;
for(int i = 0; i < numberOfPlayers; i++){
cout << "Enter your name:";
cin >> (*player[i]).name;
}
for(int i = 0; i < numberOfPlayers; i++){
cout << (*player[i]).name << endl;
}
}
/*//This is the function that plays the entire game
void play(int &size, int &player1, int &player2, int cardPile[], int board[]){
displayRules();
shuffleDeck(size, cardPile);
while(player1 < 25 && player2 < 25){
cout << "\nPlayer 1's turn!" << endl;
takeTurn(size, player1, cardPile, board, player2);
size++;
reshuffle(size, cardPile);
showState(player1, player2);
if(player1 >= 25)
break;
else
cout << "\nPlayer 2's turn!" << endl,
takeTurn(size, player2, cardPile, board, player1),
size++,
reshuffle(size, cardPile);
showState(player1, player2);
}
youWin(player1, player2);
}
//This function displays the rules of the game
void displayRules(){
cout << "\nWelcome to GoHome! The main objective of this game is to reach Home"
" first." << endl;
cout << "The basic rules of the game are as follows:" << endl;
cout << "\n-To begin the player with the shortest name goes first." << endl;
cout << "-Each player picks a card that has a number on it and the player"
" must moves forward that many number of spaces." << endl;
cout << "-If a card says 'Lose A Turn', the player does nothing and the"
"turn moves to the next player." << endl;
cout << "-If a card says 'Switch Places', that player is allowed to switch"
" places with any player on the board." << endl;
cout << "-If a player lands on an obstacle, that player must move back that"
" many number of spaces." << endl;
cout << "-If a player lands another obstacle while moving backwards, then it"
" does not have to move backwards again.\n"<<endl;
}
//This function does a single turn for each player
int takeTurn(int &size, int &player, int cardPile[], int board[],int &opposingPlayer){
if(cardPile[size] == 0)
cout << "You drew a Lose a turn card! You lose a turn!" << endl;
else if(cardPile[size] == 5)
cout << "You drew a Switch Places card! You must switch places with the"
" other player!" << endl,
switchPlaces(player, opposingPlayer);
else
cout << "You drew a " << cardPile[size] << "!";
switch(cardPile[size]){
case 1:
cout << " Move forward " << cardPile[size] << " space on the board!" << endl;
player += cardPile[size];
obstacles(player, board);
break;
case 2:
cout << " Move forward " << cardPile[size] << " spaces on the board!" << endl;
player += cardPile[size];
obstacles(player, board);
break;
case 3:
cout << " Move forward " << cardPile[size] << " spaces on the board!" << endl;
player += cardPile[size];
obstacles(player, board);
break;
case 4:
cout << " Move forward " << cardPile[size] << " spaces on the board!" << endl;
player += cardPile[size];
obstacles(player, board);
break;
}
}
//This function shuffles the deck of cards
int shuffleDeck(int &size, int cardPile[]){
srand(time(0));
for(int i = 0; i < 10; i++){
int size = rand() % 10;
int temp = cardPile[i];
cardPile[i] = cardPile[size];
cardPile[size] = temp;
}
}
//This function forces player 1 and player 2 to switch places
int switchPlaces(int &player, int &opposingPlayer){
int temp = player;
player = opposingPlayer;
opposingPlayer = temp;
}
//This is the function that tells a player when they have ran into an
//obstacle and moves them back the appropriate number of spaces
int obstacles(int &player, int board[]){
if(player == 1)
player -= board[1],
cout << "You ran into an obstacle! Move back 1 space!" << endl;
else if(player == 4)
player -= board[4],
cout << "You ran into an obstacle! Move back 1 space!" << endl;
else if(player == 8)
player -= board[8],
cout << "You ran into an obstacle! Move back 2 spaces!" << endl;
else if(player == 12)
player -= board[12],
cout << "You ran into an obstacle! Move back 3 spaces!" << endl;
else if(player == 16)
player -= board[16],
cout << "You ran into an obstacle! Move back 2 spaces!" << endl;
else if(player == 20)
player -= board[20],
cout << "You ran into an obstacle! Move back 1 space!" << endl;
return player;
}
//This function shows what spot on the board both players are on
void showState(int &player1, int &player2){
if(player1 == 0)
cout << "\nPlayer 1 is at Start!" <<endl;
else
cout << "\nPlayer 1 is on spot " << player1 << " of the board." <<endl;
if(player2 == 0)
cout << "Player 2 is at Start!\n" <<endl;
else
cout << "Player 2 is on spot " << player2 << " of the board.\n" <<endl;
}
//This function looks to see if the pile of cards has run out
//and call for the shuffle function to reshuffle the deck
int reshuffle(int &size, int cardPile[]){
if(size == 10)
shuffleDeck(size, cardPile),
size = 0;
else
;
}
//This function displays a message saying who won the game
void youWin(int &player1, int &player2){
if(player1 >= 25)
cout << "\nWinner! Player 1 reached Home first!\n" << endl;
else
cout << "\nWinner! Player 2 reached Home first!\n" << endl;
}*/
编辑：这是整个代码。我评论了我目前没有工作的部分。我必须使用动态分配，因为它是分配的一部分。
答案 0 :(得分：0)
Game *[]的第一个参数属于Game *类型，但您正在传递Game *。根据用法，我假设您要更改函数以接受{{1}}并删除函数体本身的额外解引用。
答案 1 :(得分：0)
该计划没有意义。
例如，在main的代码片段中，变量numberOfPlayers具有不确定的值，因为它未初始化。
int numberOfPlayers;
Game *player = new Game[numberOfPlayers];
由于这个原因，程序已经有了未定义的行为。
进一步的第一个函数参数
void namePlayers(Game *player[], int &numberOfPlayers);
^^^^^^^^^^^^^^
具有类型Game **，而使用类型为Game *的参数调用它。
namePlayers(player, numberOfPlayers);
^^^^^^
最好将第二个参数声明为类型size_t而不是类型int。否则，用户可以输入负数，程序将再次出现未定义的行为。
我会按以下方式声明和定义函数
Game * namePlayers( size_t &numberOfPlayers )
{
Game *player = nullptr;
numberOfPlayers = 0;
cout << "How many players are playing(up to 6)?" << endl;
cin >> numberOfPlayers;
if ( numberOfPlayers )
{
player = new Game[numberOfPlayers];
for ( size_t i = 0; i < numberOfPlayers; i++ )
{
cout << "Enter your name:";
cin >> player[i].name;
}
}
return player;
}
主要代码看起来像
size_t numberOfPlayers;
Game *player = namePlayers( numberOfPlayers );
for ( size_t i = 0; i < numberOfPlayers; i++ )
{
cout << player[i].name << endl;
}
//...
delete [] player;
修改
在您更改了问题中的代码之后，这个分配没有意义。
int numberOfPlayers = 0;
//...
Game *player = new Game[numberOfPlayers];