Added is-even-bitwise.md

snippets/python/s/is-even-bitwise.md

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+---
+title: Bitwise even number
+type: snippet
+language: python
+tags: [bitwise]
+cover: interior-4
+dateModified: 2023‐06‐18T05:24:48+00:00
+---
+
+Check if the given number is even.
+
+- Checks if the given number is even using the bitwise AND (`&`) operator.
+- Actually compares the binary form of number with 1.
+- In binary form, even numbers have 0 as last digit, whereas odd numbers have 1 as last digit.
+- Returns **true** if the number is even. Otherwise, returns **false**.
+
+```py
+def is_even_bitwise(number):
+'''
+  Code snippet to check if a number is an even number using bitwise AND operator.
+  Arguments:
+          number (int): The number to be checked.
+
+    Returns:
+        bool: True if the number is even, False if the number is odd.
+'''
+# Check for negative number
+if number < 0 :
+  number = -number # To make sure the number is never negative.
+  return (number & 1) == 0
+```
+
+```py
+is_even_bitwise(2) # true
+is_even_bitwise(3) # false
+```