c - 如何从特定函数返回数组？

Question

过去两天我一直在研究这个功能，但我似乎无法弄清楚。函数 displayBoard() 打开一个文本文件(在本例中为“board.txt”)并将其放入一维数组中。该代码是我的教授提供的。我将其变成一个函数并尝试返回数组 board[]，以便我可以在 main 中操作它，但我无法做到这一点，我缺少什么？

void displayBoard ()
{
    FILE *pInputFile;        // file pointer
    char board[64];          // the 8x8 board
    int i=0;                 // loop counter
    char inputFileName[] = "board.txt";

    // Associate the actual file name with file pointer and try to open it
    pInputFile = fopen(inputFileName, "r");
    // Verify input file was found
    if (pInputFile == NULL) {
        printf("Attempt to open file %s failed.  Exiting ... \n", inputFileName);
        exit( -1);
    }

    // Read from the file into the board.  Space in front of %c is important!
    while (fscanf(pInputFile, " %c", &board[i]) != EOF) {
        i++;
    }

    fclose(pInputFile);   // close input file

    // show contents of board
    printf("Board is: ");
    for (i=0; i<64; i++) {
        if (i%8 == 0) {
            printf("\n");
        }
        printf("%c ", board[ i]);
    }

    printf("\n\n");

    return board;
}    

int main ()
{
    printf(" %s", board); // This is my printf statement to see if I am able to access 
                          // board[] from the function
}

Answer 1

您需要通过声明函数使该方法返回 char *

char * displayBoard {
    ...
}