OpenCL « open « C File Q&A

1. ATI Stream OpenCL: Problem while opening opencl kernel file in Visual Studio 2010    stackoverflow.com

FILE *fp;
long filelen; long readlen;
char* src;
fp = fopen("OpenCLSource.cl","r");
fseek(fp,0L,SEEK_END);
filelen = ftell(fp);
rewind(fp);
src = (char *) malloc(sizeof(char)*(filelen+1));    
readlen = fread(src,1,filelen,fp);
src[filelen+1] = '\0';
fclose(fp);

I typed in this code, and I got an error ...