Ccnvert to float[,] array to double[,] array

Question

3.20/5 (3 votes)

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How do I convert a float array to a double array?

This does not work:

C#

float[,] resultArray2 = new float[354, 354];
double[,] resultArray3 = new double[354, 354];
resultArray2 = resultArray3;

Posted 18-Mar-12 9:11am

shekarchee

Updated 14-Dec-15 3:13am

Leo Chapiro

v2

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2 solutions

Solution 1

C#

public static double[] convertToDouble(float[] inputArray)
{
    if (inputArray== null)
        return null; 

    double[] output = new double[inputArray.length];
    for (int i = 0; i < inputArray.length; i++)
        output[i] = inputArray[i];

    return output;
}

Posted 18-Mar-12 9:18am

Dean Oliver

Updated 18-Mar-12 13:45pm

v2

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Shahin Khorshidnia · Accepted Answer · 2012-03-18T14:03:00

Solution 2

Hello

C#

float[,] resultArray2 = new float[354, 354];

double[,] resultArray3 = new double[354, 354];


for (int i = 0; i < resultArray2.GetLength(0); i++)
{
    for (int j = 0; j < resultArray2.GetLength(1); j++)
    {
        resultArray3[i, j] = resultArray2[i, j];
    }
}

Posted 18-Mar-12 14:03pm

Shahin Khorshidnia

Comments

ProEnggSoft 18-Mar-12 20:18pm

What OP has asked is to convert Double array to Float array. As Double cannot be converted implicitly, resultArray2[i,j] = (float)resultArray3[i,j]; is to be used in the loop.
As the logic is correct. My 5!

Shahin Khorshidnia 19-Mar-12 5:51am

Thank you very much.
Yes, but OP wants to convert float to double and it doesn't need :
resultArray2[i,j] = (double)resultArray3[i,j];
Thanks again.