How to Solve Problems with Bitwise Operators in Swift in IOS


Smartphones either have android or IOS as their core operating systems, these directly redirect to the number of loyal users using such operating systems. These also means that there are popular slots for app developers to fill in and satisfy customers for their services. There are ios game development companies on the rise these days, there are millions of users and to top it all off their taste and preferences are all serrated in the local market pool, this diversifies the work of ios game development businesses to branch out into trying their hands in different genres and can try here for Best iPhone game development services.

Due to the recent breakthroughs in the Ai department, game development has enhanced so has the user experience. The use of Artificial Intelligence has now promoted the idea of maintaining a standard flow of personalized content for each user profile. This method has grown famous in mobile applications too, there’s the factor of user privacy and personal data protection through plugins and SSL certificates however, users are now able to engage such security measures manually too.

Bitwise operators are on trend these days and it is used to change singular bits into an operand. When a single byte of computer memory is viewed as 8 bits it signifies a status of truth or false within 8 flags since individual bits are used as a Boolean variable that can carry two separate values that is, right and wrong. Each number represents a binary number and so this is called the base of the two numeral systems. A bit is the representative form of every digit in this numeral system, however it is distinguished into 0 or 1 only. Since the elements are dual the positions play a bigger role in representing power of two. The bit displaced at the right side represents 0 as its power. The sum of the power 2 is represented by any specific number.

What is Bit Shift Operation?

It’s a basic operation that has the ability to move single digits in the binary representation of a number towards the left or right direction.

  • Moving each digits into the left direction: This is done by shifting a number by n to return a decimal number
  • Moving each digits into the right direction: This is done by dividing the original number by 2

Some Bitwise Operations include solutions such as the Boolean Operations such as AND and OR where the former if given two individual bits a and b will turn out to be a&b is equal to 1, the condition should be if both bits are 1 and the latter is when two bits a and b are represented as a|b is equal to 1 and the condition is met if one of them is 1.

Bitwise operations operate on patterns that follow the bit that matches their own level. The two functions are used to identify which bits are filled with 1 or 2 with the use of their positions as well.

Here is a Fresh Take on Bitwise Operators

The wide choices of Boolean solutions or bitwise operations are useful and worthwhile however, things have changed with better solutions to offer such as UInt16. It has a wide variety of boolean operators with the additional OR bit shift operation. There usually isn’t much of a difference in the algorithm between using the old Boolean operation and the UInt16. The only difference is that there are better options to choose from the latter. So let’s dive into some theory work,

  • the slot in the bit pattern is represented by a variable Value during the testing period. The UInt16 has about sixteen empty bits and here we are going to utilise the first 9 ones which are situated in the extreme right position.

To have a better understanding of the mentioned instructions let’s look into an example, let there be two 5 on the same row the first on [0][0] and the second on [0][2] and our main objective is to shift 7 into the first slot,

The first recurrence states row is equal to 0 while col is equal to 0,

7 takes its place in the position of [0][0] onboard and so the value is seen to be 1<<(5-1) = 1<<4 = 10000

Row [0] presently is 0 so the check value & row [0] = 10000 & 00000 = 0 hence, the checking appears correct. The same scenario for cols [0] as well as squares [0] Now it’s time to re-check the truth table with 4

Row [0] |= value = 00000 | 10000 = 10000

Cols [0] |= value = 00000 | 10000 = 10000

Squares [0] |= value = 00000 | 10000 = 10000

The second recurrence is now stated as row is equal to 0 as usual and col as 1 this time,

Since the number at the bits [0][1] is 3, so naturally if we fall low the standard rules of the binary system the value ultimately becomes 1<<(3-1) = 1<<2 = 100 there are two zeros because the final digit is 2 in number.

Hence, row [0] now looks like 10000 similarly, we go with bitwise operations that is, row [0] &100 = 1000 & 100 = 0

Similarly, for squares [0] and cols [1] and so the next step is to update the truth tables,

Row [0] |= value = 10000 | 00100= 10100

Cols [0] | = value = 000 | 100 = 100

Squares [0] = value = 1000 | 00100 = 10100

Here’s a quick summary of

  • Left Shift Operator: This acts as an operator whose main function is to shift all bits to the left side of the table through a specific number of bits produced by the left shift key. For example if we enter a 1 bit shift then the bits shift to the left by the position and space taken by 1 bit and so the bit that was in the left most position is deleted and the vacant space is filled up by 0 only.
  • Right Shift Operator: This acts as an operator whose main function is to shift all bits to the right side of the table through a specific number of bits produced by the right shift key. For example if we enter a 1 bit shift then the bits shift to the right by the position and space taken by 1 bit. The vacant spot is replaced by 0 like how we saw for the left shift operator.

 However, when it’s a signed number if it’s a positive number 0 fills up the space and if it’s a negative number 1 fills up the vacant space. So it’s important to note that signed integer can represent positive and negative integers equally but for unsigned integers they are the sole representatives of integers that are positive.

  • Bitwise AND (&) Operator: AND is a bitwise operator and it returns to 1 if both elements are the same, that is, 1 specifically. If not then it automatically returns to 0. For example : a&b
  • Bitwise OR (|) Operator: OR is another bitwise operator that returns to 1 if and only if one of the element is 1, if this condition is false then it returns back to 0. For example : a | b

And some additional operators

  • Bitwise XOR (^) Operator: XOR is another bitwise operator whose main function is to return to 1 if only one element is stated as 1. Another specific condition is mentioned, that is when both elements are stated as 0 and both elements are stated as 1 the final outcome comes as 0. For example a ^ b
  • Bitwise NOT Operator: NOT is another bitwise operator whose main function is that it converts bits, let’s say from 0 to 1 or, 1 to 0. The main formula it follows for conversion or inversion is

                        N = – (N + 1)

Make a mental note that one cannot convert the result into decimal through a direct method to get the desired result.

 2’s Complement: This is a function that when a number N produces -N. This is linked to the process of inversion, the bits from 1 to 0 or 0 to 1, with an additional +1.

The mentioned method can be applied to your standard bitwise operators to see results in efficiency. To start with bitwise operations users must be well aware of the basic operations and functions to better equip themselves while solving software developmental problems or issues related to IOS systems.

If you are new to programming and its practices there are courses available for anyone on online platforms, try to make your own structures as practice to understand the basics a little better.

Smartphone app development is a thriving industry to work in. Nowadays there is the option of working remotely at the comforts of your home and to seek such job opportunities one can look for online agencies or businesses who specialise in providing services for job hunting customers. Most of the platforms available are free to join but the fee for reaching out to certain agencies are mentioned in some companies. Although the field of app and web is ever expanding and filled with new opportunities the resources and technology used are also growing alongside its trends. Developers are now demanded to be more skilled and experienced with new software programs or advanced programming languages. As the C++ language is a traditional yet technical level of programming, it’s use in systems and websites are slowly fading away.

So web and app developers are advised to be up to date with the current trends.


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