Скачать или смотреть Converting Integer Array to Short Array in C#

Learn how to efficiently convert an integer array to a short array in C#, preserving data integrity and minimizing memory usage.
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When dealing with data manipulation in C, it's common to encounter scenarios where you need to convert between different data types. One such scenario is converting an array of integers (int) to an array of shorts (short). This conversion might be necessary for various reasons, such as interfacing with external systems or optimizing memory usage.

C provides several methods to perform this conversion efficiently. One of the simplest approaches is to iterate through each element of the integer array and cast it to a short. However, it's essential to consider potential data loss due to the narrower range of values supported by shorts compared to integers.

Here's a straightforward example demonstrating how to convert an int array to a short array using a simple loop:

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In this code snippet:

We define an integer array intArray with some sample values.

We create a new short array shortArray with the same length as intArray.

We iterate through each element of intArray, cast it to a short using (short), and assign it to the corresponding index in shortArray.

It's important to note that this approach may result in data loss if any of the integer values exceed the range supported by shorts (-32,768 to 32,767).

If preserving data integrity is crucial and you want to avoid potential data loss, you can use the ConvertAll method provided by the Array class. This method allows you to convert each element of the array using a specified converter function. Here's how you can use ConvertAll to convert an int array to a short array:

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In this code snippet:

We pass the intArray to Array.ConvertAll, along with a lambda function (x => (short)x) that converts each integer element to a short.

The Array.ConvertAll method returns a new short array containing the converted values.

Using Array.ConvertAll simplifies the conversion process and makes the code more concise, while also ensuring that data integrity is maintained.

Whether you choose to use a simple loop or the Array.ConvertAll method depends on your specific requirements and preferences. Both methods are valid and efficient ways to convert an integer array to a short array in C.