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BitConverter Class in C#
The BitConverter class converts base data types to an array of bytes, and an array of bytes to base data types.
Following are the methods −
| Method | Description |
|---|---|
| DoubleToInt64Bits(Double) | Converts the specified double-precision floating-point number to a 64-bit signed integer. |
| GetBytes(Boolean) | Returns the specified Boolean value as a byte array. |
| GetBytes(Char) | Returns the specified Unicode character value as an array of bytes. |
| GetBytes(Double) | Returns the specified double-precision floating-point value as an array of bytes. |
| GetBytes(Int16) | Returns the specified 16-bit signed integer value as an array of bytes. |
| GetBytes(Int32) | Returns the specified 32-bit signed integer value as an array of bytes. |
| Int64BitsToDouble(Int64) | Reinterprets the specified 64-bit signed integer to a double-precision floating-point number. |
| ToBoolean(Byte[], Int32) | Returns a Boolean value converted from the byte at a specified position in a byte array. |
| ToChar(Byte[], Int32) | Returns a Unicode character converted from two bytes at a specified position in a byte array. |
| ToString(Byte[]) | Converts the numeric value of each element of a specified array of bytes to its equivalent hexadecimal string representation. |
| ToString(Byte[], Int32) | Converts the numeric value of each element of a specified subarray of bytes to its equivalent hexadecimal string representation. |
| ToString(Byte[], Int32, Int32) | Converts the numeric value of each element of a specified subarray of bytes to its equivalent hexadecimal string representation. |
| ToUInt16(Byte[], Int32) | Returns a 16-bit unsigned integer converted from two bytes at a specified position in a byte array. |
Let us see some examples −
The BitConverter.ToBoolean() method in C# returns a Boolean value converted from the byte at a specified position in a byte array.
Syntax
Following is the syntax −
public static bool ToBoolean (byte[] arr, int startIndex);
Above, arr is a byte array, whereas startIndex is the index of the byte within a value.
Example
Let us now see an example to implement the BitConverter.ToBoolean() method −
using System;
public class Demo {
public static void Main(){
byte[] arr = { 50, 100 };
Console.WriteLine("Array values...");
for (int i = 0; i < arr.Length; i++) {
Console.WriteLine("{0} ", arr[i]);
}
Console.WriteLine("
Converted values...");
for (int index = 0; index < arr.Length; index++) {
bool res = BitConverter.ToBoolean(arr, index);
Console.WriteLine(""+res);
}
}
}Output
This will produce the following output −
Array values... 50 100 Converted values... True True
The BitConverter.DoubleToInt64Bits() method in C# is used to convert the specified double-precision floating-point number to a 64-bit signed integer.
Syntax
Following is the syntax −
public static long DoubleToInt64Bits (double val);
Above, val is the number to convert.
Example
Let us now see an example to implement the BitConverter.DoubleToInt64Bits() method −
using System;
public class Demo {
public static void Main(){
double d = 5.646587687;
Console.Write("Value = "+d);
long res = BitConverter.DoubleToInt64Bits(d);
Console.Write("
64-bit signed integer = "+res);
}
}Output
This will produce the following output −
Value = 5.646587687 64-bit signed integer = 4618043510978159912
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