#include <plhash.h> typedef PRUint32 PLHashNumber; #define PL_HASH_BITS 32
PLHashNumber is an unsigned 32-bit integer.
PLHashNumber is the data type of the return value of a hash function. A hash function maps a key to a hash number, which is then used to compute the index of the bucket.
PL_HASH_BITS is the size (in bits) of the
PLHashNumber data type and has the value of 32.