Can't read the file when adding '\n' to it

[pcultras]

				fseek(f1, 0, SEEK_END);
				long Size = ftell(f1);
				rewind(f1);
				
				buffer=(char*) malloc(Size);
				if(buffer==NULL){
					cout <<"Memory allocation has failed!");
					return 0;
				}

				size_t result = fread(buffer, 1, Size, f1);
				if(result!=Size){
					cout << "Error while reading the file!";
					return 0;
				}

Could someone tell me why this code works well if there is no break line in the txt file but when I write '\n' to a text file it gives me the error: "Error while reading the file!". I've been trying to figure it out for a longer while now but it nothing really makes sense to me...

[binarybob350]

How did you open the file with fopen. "r" (text) or "rb" (binary). This effects what ftell returns for the actual file length.

http://www.cplusplus.com/reference/clibrary/cstdio/ftell/

[pcultras]

Thank you very much, I've changed it and it works now fine!