Combining two char arrays into a third one

This is a discussion on Combining two char arrays into a third one within the C++ Programming forums, part of the General Programming Boards category; Ok i have tried this and I know I am doing something wrong but I cant fig out what for ...

  1. #1
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    Combining two char arrays into a third one

    Ok i have tried this and I know I am doing something wrong but I cant fig out what for the life of me..this is prob totally wrong

    #include <iostream>
    using namespace std;

    int main()
    {
    char A[4]="abc";
    char B[4]="def";
    char C[7];


    for( int i=0;i<=4;i++ )
    C[i] = A[i];


    for( i=0;i<=4;i++ )
    C[i+4] = B[i];



    cout <<C <<endl;


    return 0;

    }

  2. #2
    geek SilentStrike's Avatar
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    Using from 0 to < n is typical in C and C++, rather than 0 to <= n -1, when you want to do something n times.

    Code:
    #include <iostream>
    using namespace std;
    
    int main()
    {
    	char A[4]="abc";
    	char B[4]="def";
    	char C[7];
    	int i;
    
    	for(i=0;i<3;i++ )
    	C[i] = A[i];
    
    	for( i=0;i<3;i++ )
    	C[i+3] = B[i];
    
    	C[6]='\0'; // terminate the char*
    
    	cout <<C <<endl;
    
    	return 0;
    }
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
    Read my livejournal

  3. #3
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    ohh thank you for that help...I would hug you if I knew you

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