Thread: help with strcpy and arrays with header file

I am tyring to do a programm that will use the function strcpy and i have to add the a header file in this code so far this is what i have but it's not doing what it should do
the output should say this
Hello
World............

Code:

#include <iostream.h>
#include <string.h>
#include "myStrcat.h"

int main ()
{ 
	char a[20];
	strcpy(a, "hello");
		myStrcat(a,"world");
	return 0;

}
char* myStrcat(char* dest, const char* src)
{
	
    int  i = strlen( src);
     while( *dest ) 
	src[i++];
	*dest++; 
	src[i]; 
	
	return dest;


}

Think of it this way:
dest contains:

dest[0] = 'h';
dest[1] = 'e';
dest[2] = 'l';
dest[3] = 'l';
dest[4] = 'o';
dest[5] = '\0';

You want to copy into dest, starting at dest[5] (ie dest + strlen(dest) ), the string src, up to and including the terminating zero.

Does this work? No promises, I didn't compile, but I think it might...

Code:

char* mystrcat(char* dest, char* src)
{
    char* p = dest + strlen(dest);
    char* q = src;
    while ( *p++ = *q++ );
    return dest;
}

what should i put then in main function becuze this it compiles but it dosent give u nothing please help

Code:

int main ()
{ 
	char a[20];
	strcpy(a, "hello");
	mystrcat(a,"world");
                    cout<<"Output is: "<<a<<endl;
	return 0;

}

IfYouSaySo
thank you so much it works great see yaa