C++ Read and write multiple objects of same class

Question

airport air(1,2,3); //an airport constructor
ofstream myfile;
myfile.open(\"rishab\",ios::app||ios::binary);
myfile.write((char*)air,sizeof(airport);
myfile.close();         


        

Answer 1

You can program it like this.

struct AirPort
{
    int a;
    int b;
    int c;
};
int main()
{
    std::vector airportList;
    FILE* fp = fopen(filename,"rb");
    if( NULL != fp)
    {
        while(!feof(fp))
        {
            AirPort ap;
            if (fread(&ap,sizeof(ap),1,fp)==1)
            {
                airportList.push_back(ap);
            }
        }
    }
    fclose(fp);
    return 0;
}