c函数调用

Question

我想利用这个代码...

char mysmooth1_ descr[] = "my smooth1: My smooth1 replaced avg() func. and assign sum to pixel"; 

void mysmooth1 (int dim, pixel *src, pixel *dst) 
{ 
    int i, j; 
    int ii, jj; 
    pixel_ sum sum; 
    pixel current_ pixel; 

    for (i = 0; i < dim; i++) 
for (j = 0; j < dim; j++) 
{ 
    initialize_pixel_sum(&sum); 
    for(ii = max(i-1, 0); ii <= min(i+1, dim-1); ii++) 
for(jj = max(j-1, 0); jj <= min(j+1, dim-1); jj++) 
    accumulate_sum(&sum, src[RIDX(ii, jj, dim)]); 
{ 
    current_ pixel.red = (unsigned short) (sum.red/sum.num); 
    current_ pixel.green = (unsigned short) (sum.green/sum.num); 
    current_ pixel.blue = (unsigned short) (sum.blue/sum.num);  
    dst[RIDX(i, j, dim)] = current_pixel; 

    } 
    } 
} 

并替换函数调用accumulate_总和，与此代码...

static void accumulate_ sum (pixel_sum *sum, pixel p) 

{ 

    sum->red += (int) p.red; 

    sum->green += (int) p.green; 

    sum->blue += (int) p.blue; 

    sum->num++; 

    return; 
} 

现在完成的代码我想出了，其中包括我试图取代函数调用总和的实际代码总和看起来像这样...

char mysmooth2_descr[] = "my smooth2: My smooth1 replaced avg() func. and assign sum to pixel and accumulate sum func."; 

void mysmooth2(int dim, pixel *src, pixel *dst) 

{ 
    int i, j, num; 
    int ii, jj; 
    pixel_sum sum; 
    pixel current_pixel; 

    for (i = 0; i < dim; i++) 
for (j = 0; j < dim; j++) 
{ 
    initialize_pixel_sum(&sum); 
    for(ii = max(i-1, 0); ii <= min(i+1, dim-1); ii++) 
for(jj = max(j-1, 0); jj <= min(j+1, dim-1); jj++) 
    sum.red += (int) p.red; 
    sum.green += (int) p.green; 
    sum.blue += (int) p.blue; 
    sum.num++; 
{ 
    current_ pixel.red = (unsigned short) (sum.red/sum.num); 
    current_ pixel.green = (unsigned short) (sum.green/sum.num); 
    current_ pixel.blue = (unsigned short) (sum.blue/sum.num);  
    dst[RIDX(i, j, dim)] = current_pixel; 

    } 
    } 
} 

现在，我认为我做对了，但我不断收到错误，这阻止了我编写代码......如果有人能告诉我我做错了什么，那会很好。我在某处丢失括号吗？我是否应该在某处添加更多的代码......任何能够帮助我在未来完成此任务的建议或示例都将不胜感激。谢谢。

其实我现在认识到，我弄乱的东西了试图与实际的代码替换函数调用时accumulate_sum ...任何建议...也许它的支架是我搞砸了......

Answer 1

确实这样拧上大括号{}，就像您通过格式化程序（如astyle）运行代码一样。

void mysmooth2(int dim, pixel *src, pixel *dst) 

{ 
    int i, j, num; 
    int ii, jj; 
    pixel_sum sum; 
    pixel current_pixel; 

    for (i = 0; i < dim; i++) 
     for (j = 0; j < dim; j++) { 
      initialize_pixel_sum(&sum); 
      for (ii = max(i - 1, 0); ii <= min(i + 1, dim - 1); ii++) 
       for (jj = max(j - 1, 0); jj <= min(j + 1, dim - 1); jj++) 
        sum.red += (int) p.red; 
      sum.green += (int) p.green; 
      sum.blue += (int) p.blue; 
      sum.num++; 
      { 
       current_ pixel.red = (unsigned short) (sum.red/sum.num); 
       current_ pixel.green = (unsigned short) (sum.green/sum.num); 
       current_ pixel.blue = (unsigned short) (sum.blue/sum.num); 
       dst[RIDX(i, j, dim)] = current_pixel; 

      } 
     } 
} 

直到你有一些经验，对所有for循环使用花括号，并且可能会减少错误。