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Bit swap enhancement (#6577)

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This commit is contained in:
Kunwar Partap Singh
2025-10-02 01:05:05 +05:30
committed by GitHub
parent 5e9d9f7337
commit 05ceb192c9
1 changed files with 4 additions and 1 deletions
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5
src/main/java/com/thealgorithms/bitmanipulation/BitSwap.java
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@@ -17,12 +17,15 @@ public final class BitSwap {
* @return The modified value with swapped bits
* @throws IllegalArgumentException if either position is negative or ≥ 32
*/
public static int bitSwap(int data, final int posA, final int posB) {
if (posA < 0 || posA >= Integer.SIZE || posB < 0 || posB >= Integer.SIZE) {
throw new IllegalArgumentException("Bit positions must be between 0 and 31");
}
if (SingleBitOperations.getBit(data, posA) != SingleBitOperations.getBit(data, posB)) {
boolean bitA = ((data >> posA) & 1) != 0;
boolean bitB = ((data >> posB) & 1) != 0;
if (bitA != bitB) {
data ^= (1 << posA) ^ (1 << posB);
}
return data;