Jak zrobić save ?

#include <cstdio>
#include <iostream>
#include <fstream>

void DisplayMenu( int val ) {
    system( "cls" );
    printf( "1: Save value to file\n" );
    printf( "2: Load value from file\n" );
    printf( "3: Change value\n" );
    printf( "4: Exit\n" );
    printf( "VALUE = %d\n\n", val );
}

void SaveToFile( char * path, int val ) {
    std::ofstream out( path );
    out << val << std::endl;
    out.close();
    delete[] path;
}

void LoadFromFile( char * path, int & val ) {
    std::ifstream in( path );
    in >> val;
    in.close();
    delete[] path;
}

void ChangeValue( int & val ) {
    int NewVal;
    printf( "Enter new value: " );
    scanf( "%d", & NewVal );
    val = NewVal;
}

int main()
{
    int value = 0;
    char cmd = 0;
    while( cmd != '4' ) {
        DisplayMenu( value );
        cmd = std::cin.get();
        if( cmd == '1' ) SaveToFile( "save.txt", value );
       
        if( cmd == '2' ) LoadFromFile( "save.txt", value );
       
        if( cmd == '3' ) ChangeValue( value );
       
        std::cin.sync();
    }
}