Thread: 2d strings and setting to null

If an array

Code:

char firstName[5][20] = {' '};

in the program you give firstName[0] = name by a scanf statement.

Now, I need to reset firstName [0][0] = all null.

How do I do this?

Code:

firstName[index][0] = NULL;

This is what I have right now. If I do a printf to check it it prints out as "NULL".

I m confused. sorry.

Um, lets see....
the string char firstName[5][20]={' '};
So every space in the string is null character.

through a scanf statement later on I give firstName[0][0] the name of Bob.

Now I need to bring the value of firstName[0][0] back to all null characters.

Originally Posted by Fox101

Um, lets see....
the string

Code:

char firstName[5][20]={' '};

So every space in the string is null character.

I am not very much sure about this but maybe you are right.

through a scanf statement later on I give firstName[0][0] the name of Bob.

firstName[0][0] can hold only a single character. 'Bob' is three characters long.

Now I need to bring the value of firstName[0][0] back to all null characters.

Code:

firstName[0][0]='\0';