Class: CFnv

Inherits:
Object
  • Object
show all
Defined in:
lib/cfnv.rb,
lib/cfnv/version.rb,
ext/cfnv/cfnv.c

Defined Under Namespace

Classes: Error

Constant Summary collapse

VERSION = 
"0.2.3"

Instance Method Summary collapse

Instance Method Details

#fnv132(arg) ⇒ Object

fnv132 methodを定義



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# File 'ext/cfnv/cfnv.c', line 5

static VALUE

fnv_fnv132(VALUE self, VALUE arg) {
  char *str = NULL;
  uint32_t offset_basis = 2166136261U;
  uint32_t cFNV_PRIME = 16777619U;
  uint32_t hash = 0;
  int i;

  Check_Type(arg, T_STRING);
  str = StringValuePtr(arg);
  int len = strlen(str);
  hash = offset_basis;
  for (i = 0; i < len; i++) {
    hash *= cFNV_PRIME;
    hash ^= str[i];
  }
  return INT2FIX(hash);
}

#fnv164 ⇒ Object

#fnv1a32 ⇒ Object

#fnv1a64 ⇒ Object