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Diffstat (limited to 'moses/src/hash.cpp')
-rw-r--r--moses/src/hash.cpp60
1 files changed, 0 insertions, 60 deletions
diff --git a/moses/src/hash.cpp b/moses/src/hash.cpp
deleted file mode 100644
index 3ea6af62b..000000000
--- a/moses/src/hash.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-// $Id$
-
-#define mix(a,b,c) \
-{ \
- a -= b; a -= c; a ^= (c>>13); \
- b -= c; b -= a; b ^= (a<<8); \
- c -= a; c -= b; c ^= (b>>13); \
- a -= b; a -= c; a ^= (c>>12); \
- b -= c; b -= a; b ^= (a<<16); \
- c -= a; c -= b; c ^= (b>>5); \
- a -= b; a -= c; a ^= (c>>3); \
- b -= c; b -= a; b ^= (a<<10); \
- c -= a; c -= b; c ^= (b>>15); \
-}
-
-/* the key */
-/* the length of the key */
-/* the previous hash, or an arbitrary value */
-unsigned int quick_hash(register const char *k, register unsigned int length, register unsigned int initval)
-{
- register unsigned int a,b,c,len;
-
- /* Set up the internal state */
- len = length;
- a = b = 0x9e3779b9; /* the golden ratio; an arbitrary value */
- c = initval; /* the previous hash value */
-
- /*---------------------------------------- handle most of the key */
- while (len >= 12)
- {
- a += (k[0] +((unsigned int)k[1]<<8) +((unsigned int)k[2]<<16) +((unsigned int)k[3]<<24));
- b += (k[4] +((unsigned int)k[5]<<8) +((unsigned int)k[6]<<16) +((unsigned int)k[7]<<24));
- c += (k[8] +((unsigned int)k[9]<<8) +((unsigned int)k[10]<<16)+((unsigned int)k[11]<<24));
- mix(a,b,c);
- k += 12; len -= 12;
- }
-
- /*------------------------------------- handle the last 11 bytes */
- c += length;
- switch(len) /* all the case statements fall through */
- {
- case 11: c+=((unsigned int)k[10]<<24);
- case 10: c+=((unsigned int)k[9]<<16);
- case 9 : c+=((unsigned int)k[8]<<8);
- /* the first byte of c is reserved for the length */
- case 8 : b+=((unsigned int)k[7]<<24);
- case 7 : b+=((unsigned int)k[6]<<16);
- case 6 : b+=((unsigned int)k[5]<<8);
- case 5 : b+=k[4];
- case 4 : a+=((unsigned int)k[3]<<24);
- case 3 : a+=((unsigned int)k[2]<<16);
- case 2 : a+=((unsigned int)k[1]<<8);
- case 1 : a+=k[0];
- /* case 0: nothing left to add */
- }
- mix(a,b,c);
- /*-------------------------------------------- report the result */
- return c;
-}
-