How Do Go's Bitwise Shift Operators (<< and >>) Work for Efficient Binary Data Manipulation?

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Understanding Bitwise Shift Operators in Go

In Go, the bitwise shift operators "<<" and ">>" play a crucial role in manipulating binary data. These operators allow you to shift the bits within a variable, resulting in multiplication or division by powers of 2.

Left Shift Operator («<»)

The left shift operator (<<) is used to multiply the operand by a power of 2. The syntax is:

num << shift_count

For example:

• 1 << 5 multiplies 1 by 2^5, resulting in 32.
• 100 << 3 multiplies 100 by 2^3, resulting in 800.

Right Shift Operator (>>)

The right shift operator (>>) is used to divide the operand by a power of 2. The syntax is:

num >> shift_count

For example:

• 32 >> 5 divides 32 by 2^5, resulting in 1.
• 800 >> 3 divides 800 by 2^3, resulting in 100.

Simplified Rule of Thumb

A simplified rule of thumb is that the left shift operator (<<) doubles the value, while the right shift operator (>>) halves the value, both for a specified number of times. By applying the appropriate bitshift operations, you can perform efficient operations on binary data in Go.

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