这些Visual Studio 2010错误的原因是什么?警告?

时间:2010-04-24 22:51:43

标签: c++ c visual-studio-2010

我不知道从Visual Studio 2010收到这些错误的原因。

这是我的程序从第343行到第408行的代码:

int create_den_from_img(char *img_file_name_part, int xlen, int ylen, int zlen )
{
  IplImage* imgs = 0;
  char str[80];
  unsigned char *data,*imgdata;

  /* allocating memory */
  data = (unsigned char *) malloc(xlen * ylen * zlen * sizeof(unsigned char) );
  if(data==NULL)
  {
    printf("error in allocating memory \n");
    exit(1);
  }

  /* Getting the filename & iterating through tiff images */

    for(int k = 0; k < zlen; k++)
    {   
        int count=2;
        int tmp=k+1;
        while(tmp/10)
        {
            count=count-1;
            tmp=tmp/10;
        }

        switch(count)
        {
            case 2:sprintf(str,"%s00%d.tif",img_file_name_part,k+1);
                    break;
            case 1:sprintf(str,"%s0%d.tif",img_file_name_part,k+1);
                    break;  
            default:sprintf(str,"%s%d.tif",img_file_name_part,k+1);
                    break;
        }
        printf("%s\n",str);

        /* Loading Image using OpenCV */
        imgs=cvLoadImage(str,-1);
        if(imgs==NULL)
        {
            printf("error in opening image \n");
            exit(1);
        }
        imgdata=(uchar *)imgs->imageData;

        for(int j =0; j < ylen; j++)
        {
            for(int i =0; i < xlen; i++)
            {
                data[ k*xlen*ylen + j*xlen + i ] = imgdata[ j*xlen+i ];
            }
        }

        cvReleaseImage(&imgs );
    }

    /* populating `data` variable is done. So, calling `write_den` */
    if(write_den("test.den",data,xlen,ylen,zlen)==0)
    {
        printf("Error in creating den file\n");
        exit(1);
    }
    printf("Den file created\n");

}

这些是错误列表:

Error   3   error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   358 1   MTP_TEST
Error   4   error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   358 1   MTP_TEST
Error   5   error C2143: syntax error : missing ')' before 'type'   c:\examples\denfile.c   358 1   MTP_TEST
Error   6   error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   358 1   MTP_TEST
Error   7   error C2065: 'k' : undeclared identifier    c:\examples\denfile.c   358 1   MTP_TEST
Error   9   error C2065: 'k' : undeclared identifier    c:\examples\denfile.c   358 1   MTP_TEST
Error   10  error C2059: syntax error : ')' c:\examples\denfile.c   358 1   MTP_TEST
Error   11  error C2143: syntax error : missing ';' before '{'  c:\examples\denfile.c   359 1   MTP_TEST
Error   12  error C2065: 'k' : undeclared identifier    c:\examples\denfile.c   361 1   MTP_TEST
Error   13  error C2065: 'k' : undeclared identifier    c:\examples\denfile.c   370 1   MTP_TEST
Error   14  error C2065: 'k' : undeclared identifier    c:\examples\denfile.c   372 1   MTP_TEST
Error   15  error C2065: 'k' : undeclared identifier    c:\examples\denfile.c   374 1   MTP_TEST
Error   16  error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   388 1   MTP_TEST
Error   17  error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   388 1   MTP_TEST
Error   18  error C2143: syntax error : missing ')' before 'type'   c:\examples\denfile.c   388 1   MTP_TEST
Error   19  error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   388 1   MTP_TEST
Error   20  error C2065: 'j' : undeclared identifier    c:\examples\denfile.c   388 1   MTP_TEST
Error   22  error C2065: 'j' : undeclared identifier    c:\examples\denfile.c   388 1   MTP_TEST
Error   23  error C2059: syntax error : ')' c:\examples\denfile.c   388 1   MTP_TEST
Error   24  error C2143: syntax error : missing ';' before '{'  c:\examples\denfile.c   389 1   MTP_TEST
Error   25  error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   390 1   MTP_TEST
Error   26  error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   390 1   MTP_TEST
Error   27  error C2143: syntax error : missing ')' before 'type'   c:\examples\denfile.c   390 1   MTP_TEST
Error   28  error C2143: syntax error : missing ';' before 'type'   c:\examples\denfile.c   390 1   MTP_TEST
Error   29  error C2065: 'i' : undeclared identifier    c:\examples\denfile.c   390 1   MTP_TEST
Error   31  error C2065: 'i' : undeclared identifier    c:\examples\denfile.c   390 1   MTP_TEST
Error   32  error C2059: syntax error : ')' c:\examples\denfile.c   390 1   MTP_TEST
Error   33  error C2143: syntax error : missing ';' before '{'  c:\examples\denfile.c   391 1   MTP_TEST
Error   34  error C2065: 'k' : undeclared identifier    c:\examples\denfile.c   392 1   MTP_TEST
Error   35  error C2065: 'j' : undeclared identifier    c:\examples\denfile.c   392 1   MTP_TEST
Error   36  error C2065: 'i' : undeclared identifier    c:\examples\denfile.c   392 1   MTP_TEST
Error   37  error C2065: 'j' : undeclared identifier    c:\examples\denfile.c   392 1   MTP_TEST
Error   38  error C2065: 'i' : undeclared identifier    c:\examples\denfile.c   392 1   MTP_TEST

我整天都在犯这些错误。有时代码编译,而在其他时候它不编译。它真的很烦人。

2 个答案:

答案 0 :(得分:13)

您正在编译.c文件,对于Microsoft Visual Studio,这意味着您需要编写C89(又名C90)代码,而不是C99代码或C ++。

这意味着您必须在每个块的开头声明变量。这意味着您无法做到:

for (int k = 0; ...

您必须在块的开头声明k并执行:

for (k = 0; ...

答案 1 :(得分:2)

在第343行之前的类/结构声明后,您是否缺少分号?

您可以做的一件事是尝试使用另一个编译器来查看是否收到了一条对您说得更多的错误消息。例如,有Comeau online

否则,你的代码或部分内容中是否有一些流氓#defines?既然这不会一直发生,有人可能会骗你吗?尝试检查预处理的输出。