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C语言中的函数调用不明确.候选函数是Prototype和函数本身

来源:互联网 收集:自由互联 发布时间:2021-06-22
我正在完成斯坦福CS106B C的任务,我有一个带有任务的“语义问题”. 似乎编译器无法推断调用是函数还是函数的原型.我不明白为什么要对原型进行调用.我怎样才能调用函数而不是原型?
我正在完成斯坦福CS106B C的任务,我有一个带有任务的“语义问题”.

似乎编译器无法推断调用是函数还是函数的原型.我不明白为什么要对原型进行调用.我怎样才能调用函数而不是原型?我得到它的错误消息“呼叫’人类转动’是模棱两可的”.

错误消息涉及页面底部的humanTurn(Lexicon,Lexicon)函数中的humanTurn(Lexicon,Lexicon)函数的调用.该功能的原型位于主要功能之上.

任何帮助将不胜感激.

亲切的问候,

MEHUL

/*
     * File: Boggle.cpp
     * ----------------
     */

    #include <iostream>
    #include "gboggle.h"
    #include "graphics.h"
    #include "grid.h"
    #include "vector.h"
    #include "lexicon.h"
    #include "random.h"
    #include "simpio.h"
    using namespace std;

    /* Constants */

    const int BOGGLE_WINDOW_WIDTH = 650;
    const int BOGGLE_WINDOW_HEIGHT = 350;

    const string STANDARD_CUBES[16]  = {
       "AAEEGN", "ABBJOO", "ACHOPS", "AFFKPS",
       "AOOTTW", "CIMOTU", "DEILRX", "DELRVY",
       "DISTTY", "EEGHNW", "EEINSU", "EHRTVW",
       "EIOSST", "ELRTTY", "HIMNQU", "HLNNRZ"
    };

    const string BIG_BOGGLE_CUBES[25]  = {
       "AAAFRS", "AAEEEE", "AAFIRS", "ADENNN", "AEEEEM",
       "AEEGMU", "AEGMNN", "AFIRSY", "BJKQXZ", "CCNSTW",
       "CEIILT", "CEILPT", "CEIPST", "DDLNOR", "DDHNOT",
       "DHHLOR", "DHLNOR", "EIIITT", "EMOTTT", "ENSSSU",
       "FIPRSY", "GORRVW", "HIPRRY", "NOOTUW", "OOOTTU"
    };

    /* Function prototypes */

    void welcome();
    void giveInstructions();
    // Create random board
    static Grid <char> randomBoard();
    // Create custom board
    static Grid<char> customBoard();
    static void drawAndFillBoard(Grid<char>);
    static void humansTurn(Lexicon,Lexicon);

    int main() {
        initGraphics(BOGGLE_WINDOW_WIDTH, BOGGLE_WINDOW_HEIGHT);
        welcome();
        giveInstructions();
        string custom = getLine("Type y to create custom board:" );
        Grid<char> gridData;
        if (custom=="y"){
            gridData = customBoard();
        } else {
            gridData = randomBoard();
            }
        drawAndFillBoard(gridData);
        Lexicon english("EnglishWords.dat");
        // Lexicon holds words previously encountered
        Lexicon previousWords;
        humansTurn(english, previousWords);
        return 0;
    }

    /*
     * Function: welcome
     * Usage: welcome();
     * -----------------
     * Print out a cheery welcome message.
     */

    void welcome() {
       cout << "Welcome!  You're about to play an intense game " << endl;
    }

    /*
     * Function: giveInstructions
     * Usage: giveInstructions();
     * --------------------------
     * Print out the instructions for the user.
     */

    void giveInstructions() {
       cout << endl;
       cout << "The boggle board is a grid onto which I ";
       cout << "or triple your paltry score." << endl << endl;
       cout << "Hit return when you're ready...";
       getLine();
    }

    static Grid<char> randomBoard(){
        Vector<string> standardCubes;
        for(int i = 0; i<16;i++){
            standardCubes.add(STANDARD_CUBES[i]);
        }
        // Shuffle cubes
        for (int i = 0; i < standardCubes.size(); i++) {
            int r = randomInteger(i, standardCubes.size()-1);
            if (i!=r){
                string stringToMove1 = standardCubes.get(i);
                string stringToMove2 = standardCubes.get(r);
                standardCubes.set(r, stringToMove1);
                standardCubes.set(i, stringToMove2);
            }
        }
        // Update grid with random side of cube
        Grid<char> gridData(4, 4);
        int counter = 0;
        for (int columnNo = 0; columnNo <4; columnNo++){
            for (int rowNo = 0; rowNo<4; rowNo++) {
                string s = standardCubes.get(counter);
                int r = randomInteger(0, 5);
                gridData[columnNo][rowNo] = s[r];
                counter++;
            }
        }
        return gridData;
    }

    static Grid<char> customBoard(){
        Grid<char> gridData(4,4);
        string s = getLine("Please enter 16 characters to make up the custom board. Characters will fill the board left to right, top to bottom: ");
        for (int i = 0; i < s.length(); i++) {
            s[i] = toupper(s[i]);
        }
        if (s.length()<16){
            cout << "String has to be 16 characters long, try again" << endl;
            customBoard();
        }
        int i =0;
        for (int columnNo = 0; columnNo <4; columnNo++){
            for (int rowNo = 0; rowNo<4; rowNo++) {
                gridData[columnNo][rowNo] = s[i];
                i++;
            }
        }

        return gridData;
    }

    static void drawAndFillBoard(Grid<char> gridData){
        drawBoard(4, 4);
        for (int columnNo = 0; columnNo <4; columnNo++){
            for (int rowNo = 0; rowNo<4; rowNo++) {
                labelCube(rowNo, columnNo, gridData[rowNo][columnNo]);
            }
        }
    }

    static void humansTurn(Lexicon englishWords, Lexicon &previousWords){
        /*
         Human’s turn (except for finding words on the board). Write the loop that allows the user to enter words. Reject words that have already been entered or that don’t meet the minimum word length or that aren’t in the lexicon. Use the gboggle functions to add words to the graphical display and keep score.
         */

        string humanGuess = getLine("Please enter your guess: ");
        for (int i = 0; i < humanGuess.length(); i++) {
            humanGuess[i] = tolower(humanGuess[i]);
        }
        if (humanGuess.length()<4){
            cout << "Min guess length is four characters" << endl;
            humansTurn(englishWords, previousWords);
        }
        if (!englishWords.contains(humanGuess)) {
            cout << "That word is not English, please try another word" << endl;
            humansTurn(englishWords, previousWords);
        }
        if (previousWords.contains(humanGuess)){
            cout << "That word has already been guessed, please try another word" << endl;
            humansTurn(englishWords, previousWords);
        }
        // check if word can be made using data on board

    }
您的函数humansTurn定义具有不同的签名和声明

功能声明:

static void humansTurn(Lexicon,Lexicon);

功能定义:

static void humansTurn(Lexicon englishWords, Lexicon &previousWords) 
                                                     ^^
                                                     //Here
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