fn() popCountReturns number of set bits in an integer.
Returns number of set bits in an integer.
Defined in  <seqan/misc/bit_twiddling.h> 

Signature 
unsigned popCount(words);

Parameters
word

The word to count the number of set bits of (IntegerConcept). 

Return Values
unsigned 
The number of set bits in word. 

Data Races
Thread safety unknown!