truePrefixLength

Functions
template<domain D :shared2p >
D uint	truePrefixLength (D bool arr)

Detailed Description

Function for finding how many elements from the start of a vector are true.

Note

D - shared2p protection domain

Supported types - bool

Returns

the number of set bits in the longest constant true prefix of the input

Note

this function performs log n multiplications on vectors of at most size n this is more efficient than performing n multiplications on scalars

Function Documentation

truePrefixLength()

template<domain D :shared2p >

D uint truePrefixLength

(

D bool

arr

)

Parameters

arr	- boolean 1-dimensional vector