write and read string to binary file C++

Question

Im having problems writing string into a binary file. This is my code:

ofstream outfile(\"myfile.txt\", ofstream::binary);
std::string text = \"Text\";
outfi         


        

Answer 1

Your code is wrong wrong way you are using to write & read the file and file extension error you are trying to read text file .txt correct code

Write to file

std::string text = "Text";
ofstream outfile("myfile.dat", ofstream::binary | ios::out);
outfile.write(&text,sizeof (string));//can take type
outfile.write(&text,sizeof (text));//can take variable name
outfile.close();

reading file

char* buffer = (char*) malloc(sizeof(string));
ifstream infile("myfile.dat", ifstream::binary | ios::in);    
infile.read(buffer, sizeof (prueba));
std::string* elem = (string*) buffer;
cout << *elem;
infile.close();

Try This it will work