CODEWITHSUNDEEP
c++multidimensional-arraysize
Ed The ''Pro''
Ed The ''Pro''

Reputation: 959

Determine row size and column size in a multi-dimensional array

How can I determine the size of a 2-Dimensional array in C++ when each row and column size may vary?

I'm trying to make a function called Parser that reads the array. So far, I have:

// Function:    Parser.
// Description: First, it reads the data in the array.
//              Then, it uses the data in the array.
void Parser (char ch[][]) {
    for (int i = 0; i < (sizeof (ch) / sizeof (ch [0])); ++i) {
        // TO DO - Add content.
    }
}

Array ch can contain elements such as:

{
    {
        'v', 'o', 'i', 'd'
    },

    {
        'i', 'n', 't'
    },
}

Is there a solution?

Upvotes: 1

Views: 340

Answers (2)

Ed The &#39;&#39;Pro&#39;&#39;
Ed The &#39;&#39;Pro&#39;&#39;

Reputation: 959

What I did was, I made ch a vector. I passed ch's size to iterator i in the first for loop, then ch[i]'s size to iterator j.

The new code is:

// Function:    Parser.
// Description: First, it reads the data in the vector.
//              Then, it uses the data in the vector.
void Parser (vector <vector <char>> ch) {
    for (int i = 0; i < ch.size (); ++i) {
        for (int j = 0; j < ch[i].size (); ++j) {
            // TO DO - Add content.
        }
    }
}

Upvotes: 0

Atul
Atul

Reputation: 536

There are Many ways

Use Templates:

template <typename T, size_t N, size_t M>
void Parser (T (&ch)[N][M])
{

}

Upvotes: 4

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