Go language provides inbuilt support for bits to implement bit counting and manipulation functions for the predeclared unsigned integer types with the help of bits package. This package provides Len32() function which is used to find the minimum number of bits required to represent a and the result is 0 for a == 0. To access Len32() function you need to add a math/bits package in your program with the help of the import keyword.
func Len(a uint32) (n int)
Parameters: This function takes one parameter of uint32 type, i.e., a.
Return Value: This function returns the minimum number of bits required to represent a.
The minimum number of bits required to represent 4: 3
Len32(00000000000000000000000000000101) = 3 Len32(00000000000000000000000000001100) = 4
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