Merging arrays

[ILovePrivacy]

Hi, i have some problem with merging two arrays. Array "out" should merge with itself - merge all new user input. I cant figure out how to do this ... please help and sorry for my english - its not my native language

#include<stdio.h>

#define MIN 80 
#define MAX 1000

int getl(char in[], int min);
void copy(char data[], char actual[]);

main(){

    char line[MAX];
    char out[MAX];
    int ll;

    ll = 0;
    while(ll = getl(line, MIN) && line[0] != '.')
    {
        copy(out, line);

    }

    printf("%s", out);
    return 0;
}

int getl(char in[], int min)
{
    int i,c;
    for(i = 0; i < MAX-1 && (c = getchar()) != EOF && c != '\n'; ++i)
    {
        in[i] = c;
    }

    if(c == '\n')
    {
        in[i] = c;
        ++i;
    }

    return i;
}

void copy(char data[], char actual[]){

    int i;

    for(i = 0; i < MAX ; ++i)
    {
        data[i] = actual[i];
    }

}

[ssharish2005]

So what excatly are you having problems with? I see there is bit of logic error in your code. Perhaps, when you copy the array from line to out, as you need to append the array to out array. You first need to find out the length of the array out. Or if you dont you find a mechanism to traverse through the array and find the end index and start appending the line array to out. At the movement you do that have that, as a reason you will keep overwritting the out and not producing and array with the user input appended to out.

The error lies in the function void copy(char data[], char actual[]) function.

void copy(char data[], char actual[])
{
    int i;
    // for(i = 0; i < MAX ; ++i)
    for(i=0;data[i] != '\0';i++);
    
    for(j=i,i=0;actual[i]!='\0';i++,j++)
        data[j] = actual[i];
    data[j]='\0';
}

And also include the null char at the end of out array. Before printing it using printf statment. Otherwise the you will see some random char appearing, when are junk values of the memory, unless you have initialled your array befpre use.

ssharish