如何解决C编译器在功能之前需要标识符
我一直试图在c中编写一个minesweeper函数,该函数每次遇到空白时都会扩展块的区域,但是每次尝试构建时,我都会不断收到错误...\Desktop\Test\main.c|38|error: expected ';',',' or ')' before 'int'
,尽管该函数似乎非常适合我。我的代码在这里:
#include <windows.h> /* for HANDLE type,and console functions */
#include <stdio.h> /* standard input/output */
#include <stdlib.h> /* included for rand */
#define WIDTH 30
#define HEIGHT 30
#define BOMBS 90
HANDLE wHnd; /* write (output) handle */
HANDLE rHnd; /* read (input handle */
void SetGrid(int grid[WIDTH][HEIGHT])
{
int bomb[2] = { abs(rand() % WIDTH-1) + 1,abs(rand() % HEIGHT-1) + 1 };
for (int i = 0; i < BOMBS; i++)
{
while (grid[bomb[0]][bomb[1]] < -1 || bomb[0] == 0 || bomb[1] == 0 || bomb[0] >= WIDTH-1 || bomb[1] >= HEIGHT-1)
{
bomb[0] = abs(rand() % WIDTH-1) + 1;
bomb[1] = abs(rand() % HEIGHT-1) + 1;
}
grid[bomb[0]][bomb[1]] = -9;
grid[bomb[0] + 1][bomb[1] + 1]++;
grid[bomb[0] + 1][bomb[1] ]++;
grid[bomb[0] ][bomb[1] + 1]++;
grid[bomb[0] - 1][bomb[1] + 1]++;
grid[bomb[0] ][bomb[1] - 1]++;
grid[bomb[0] + 1][bomb[1] - 1]++;
grid[bomb[0] - 1][bomb[1] - 1]++;
grid[bomb[0] - 1][bomb[1] ]++;
}
}
void ExpandGrid(int fullGrid[WIDTH][HEIGHT],int knownGrid[WIDTH][HEIGHT] int blankPos[2])
{
int neighbors[8][2] = {{0,1},{1,0},{0,-1},{-1,-1}};
int curTile[2];
for(int blck = 0; blck < 8; ++blck)
{
curTile[0] = blankPos[0]+neighbors[blck][0];
curTile[1] = blankPos[1]+neighbors[blck][1];
if(fullGrid[curTile[0],curTile[1]] == 0)
{
knownGrid[curTile[0],curTile[1]] == 1;
ExpandGrid(fullGrid,knownGrid,curTile);
}
else if(fullGrid[curTile[0],curTile[1]] > 0) {knownGrid[curTile[0],curTile[1]] == 1};
}
}
int main(void)
{
/* there will be two grids,a known grid and a full grid.
for the full grid,a zero at a position [x][y] will indicate a blank space.
a positive will be the tiles number,and a negative will be a bomb.
for the known grid,a zero at space [x][y] will indicate an unknown block.
while a 1 will indicate it is uncovered.
*/
srand(time(0));
SMALL_RECT windowSize = { 0,WIDTH - 1,HEIGHT - 1 };
//COORD bufferSize = { WIDTH,HEIGHT };
COORD characterBufferSize = { WIDTH,HEIGHT };
COORD characterPosition = { 0,0 };
SMALL_RECT consoleWriteArea = { 0,HEIGHT - 1 };
CHAR_INFO consoleBuffer[WIDTH][HEIGHT];
wHnd = GetStdHandle(STD_OUTPUT_HANDLE);
rHnd = GetStdHandle(STD_INPUT_HANDLE);
SetConsoleTitle("Minesweeper!");
SetConsoleWindowInfo(wHnd,TRUE,&windowSize);
//SetConsoleScreenBufferSize(wHnd,bufferSize);
int startGrid[WIDTH][HEIGHT] = { 0 };
int knownGrid[WIDTH][HEIGHT] = { 0 };
SetGrid(startGrid);
for (int x = 0; x < WIDTH; ++x)
{
for (int y = 0; y < HEIGHT; ++y)
{
if (startGrid[x][y] > 0)
{
consoleBuffer[x][y].Char.AsciiChar = '0' + startGrid[x][y];
consoleBuffer[x][y].Attributes = FOREGROUND_GREEN | FOREGROUND_INTENSITY;
}
else
{
consoleBuffer[x][y].Char.AsciiChar = 'o';
consoleBuffer[x][y].Attributes = (startGrid[x][y] < 0 ? FOREGROUND_RED : FOREGROUND_BLUE) | FOREGROUND_INTENSITY;
}
}
}
WriteConsoleOutputA(wHnd,consoleBuffer,characterBufferSize,characterPosition,&consoleWriteArea);
getchar();
}
如果我是正确的话,通常只会在您忘记在上一行代码结尾时才会出现此错误,但在这里我认为并非如此。这是否与函数是递归的事实有关,还是与编译器有关?您可能会说,我对c很陌生。
解决方法
在ExpandGrid()
函数定义的标题中:
void ExpandGrid(int fullGrid[WIDTH][HEIGHT],int knownGrid[WIDTH][HEIGHT] int blankPos[2])
|
here
在最后一个参数,
的定义之前缺少逗号(blankPos
)。
这就是错误消息的目的。
应该是:
void ExpandGrid(int fullGrid[WIDTH][HEIGHT],int knownGrid[WIDTH][HEIGHT],int blankPos[2])
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