c-style

/******************************************************************************

                              Online C++ Compiler.
               Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#include <iostream>

unsigned stringlen(const char *str)
{
    unsigned cnt = 0;
    while( *str != '\0')
    {
        str++;
        cnt++;
    }
    return cnt;

}
void strcat(char *to, const char *from)
{

}


int main()
{
    char a[] = "C-style string";
    char b[] = "JOPA";


    char *to = &a[0];
    char *from = &b[0];
    unsigned lenA = stringlen(a);
    unsigned lenB = stringlen(b);
   // to+= lenA;
    for(int i = 0 ; i!= lenB ; i++)
    {
        *to=*from;
        to++;
        from++;
}
to-= lenB + 1;
    for(int i = 0; i<= stringlen(a); i++)
    {
        std::cout<<*to;
        to++;
    }
}