问题
I don't know the cause of these errors I am receiving from Visual Studio 2010.
This is the code from my program from line 343 to line 408:
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");
}
These are the list of errors:
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
I've been getting these kind of errors all day long. Sometimes the code compiles, while at other time it doesn't. Its really annoying.
回答1:
You're compiling a .c file, which for Microsoft Visual Studio means that you need to be writing C89 (aka C90) code, not C99 code or C++.
What this means is that you must declare your variables at the start of each block. This means that you can't do:
for (int k = 0; ...
You have to declare k at the start of the block and do:
for (k = 0; ...
回答2:
Do you have a missing semicolon after a class/struct declaration before line 343 ?
One thing you can do is try another compiler to see if you get a different error message that speaks more to you. For example, there's Comeau online.
Otherwise, could you have some rogue #defines in your code or some of your includes? Since this doesn't happen all the time, could someone be playing tricks on you? Try to examine the preprocessed output.
来源：https://stackoverflow.com/questions/2706453/what-is-the-cause-of-these-visual-studio-2010-errors-warnings