簡體   English   中英

用默認值標記網格c ++

[英]marking a grid with default values c++

我試圖遍歷c ++中的網格並將每個坐標標記為false。 我以為我做的是創建25x25的網格,但是VC ++給了我兩個錯誤:

(37)"error C2064: term does not evaluate to a function taking 0 arguments"

(44)"error C2448: 'markAllIncluded' : function-style initializer appears to be a function definition"

我正在為某些頭文件使用stanford c ++ lib。

這是我的代碼:

#include <iostream>
#include "console.h"
#include "maze.h"
#include "gwindow.h"
#include "grid.h"
#include "queue.h"
#include "random.h"
#include "simpio.h"
#include "stack.h"
#include "vector.h"
#include <array>

using namespace std;
//prototypes

const int numCols = 25;
const int numRows = 25;

Vector<int> rand_coords();
Grid<bool> markAllIncluded(numCols, numRows);

int main() {

    Vector <int> coords = rand_coords(); //get random coords
    cout << "(" << coords[0] << ", " << coords[1] << ")" << endl;


    Grid<bool> included = markAllIncluded();
    string x = included.toString();
    cout << x;

    return 0;
}

Grid<bool> markAllIncluded() {

    Grid<bool> m(numRows, numCols); 

    for (int i=0; i <= numRows; i++) {
        for (int j = 0; j <= numCols; j++) {
            m.set(i, j, false);
        }
    }

    return m;

}


Vector<int> rand_coords () {

    Vector<int> coords(2);

    coords[0] = randomInteger(0, numCols);
    coords[1] = randomInteger(0, numRows);

    //cout << "(" << coords[0] << ", " << coords[1] << ")" << endl;

    return coords;

}

我的語法錯誤嗎? 當我將include設置為markAllIncluded()l時,在main()中出現錯誤

是的,您的語法錯誤。 函數聲明

Grid<bool> markAllIncluded(numCols, numRows);

是不正確的。 你應該用

Grid<bool> markAllIncluded();

(因為numRowsnumCols是全局const ),或者

Grid<bool> markAllIncluded(int numCols, int numRows);

以后的定義也一樣。

聲明函數時,將類型放在標識符之前

Grid<bool> markAllIncluded(int numCols, int numRows)

暫無
暫無

聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.

 
粵ICP備18138465號  © 2020-2024 STACKOOM.COM