Toggle Register Bit Safely | Dataford Interview Questions

Embedded software for General Dynamics Mission Systems mission computers often updates individual control or status bits in a hardware register. Write a function that toggles exactly one bit without changing any other bit in the register.

Formal Specification

Implement toggle_bit(register, bit_position).

register is an unsigned 32-bit integer.
bit_position is an integer from 0 through 31, where position 0 is the least significant bit.
Return the updated unsigned 32-bit register value.
A set target bit must become cleared, and a cleared target bit must become set.
Every bit except bit_position must remain unchanged.

Use bitwise operations rather than converting the register to a string or modifying individual decimal digits.

Constraints

0 <= register <= 2^32 - 1
0 <= bit_position <= 31
The input bit position is valid
Return the updated register as an integer

Function Signature

def toggle_bit(register, bit_position):

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