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undo hashtab change. too much overhead.

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This commit is contained in:
mwells 2014-09-27 08:39:22 -07:00
parent 6f5b646084
commit 8c53ce2a79
2 changed files with 15 additions and 275 deletions
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32
hash.cpp
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@ -1,10 +1,11 @@
#include "gb-include.h"
//unsigned long long g_hashtab[256][256] ;
unsigned long long g_hashtab[256][256] ;
// now we explicitly specify the zobrist table so we are compatible
// with cygwin and apple environments
#include "hashtab.cpp"
// . now we explicitly specify the zobrist table so we are compatible
// with cygwin and apple environments
// . no, let's just define the rand2() function to be compatible then
//#include "hashtab.cpp"
// . used for computing zobrist hash of a string up to 256 chars long
// . first array component is the max length, 256, of the string
@ -18,16 +19,13 @@ bool hashinit () {
// seed with same value so we get same rand sequence for all
srand ( 1945687 );
if ( g_hashtab[0][0] != 6720717044602784129LL ) return false;
//if ( g_hashtab[0][0] != 6720717044602784129LL ) return false;
//s_initialized = true;
//return true;
s_initialized = true;
return true;
//FILE *fd = fopen ( "./hashtab.cpp", "rw" );
fprintf(stdout,"g_hashtab[256][256]={\n");
//fprintf(stdout,"g_hashtab[256][256]={\n");
for ( long i = 0 ; i < 256 ; i++ ) {
fprintf(stdout,"{");
//fprintf(stdout,"{");
for ( long j = 0 ; j < 256 ; j++ ) {
g_hashtab [i][j] = (unsigned long long)rand();
// the top bit never gets set, so fix
@ -39,13 +37,13 @@ bool hashinit () {
if ( rand() > (0x7fffffff / 2) )
g_hashtab[i][j] |= 0x80000000;
// fixes for cygwin/apple
fprintf(stdout,"%lluULL",g_hashtab[i][j]);
if ( j+1<256 ) fprintf(stdout,",");
//fprintf(stdout,"%lluULL",g_hashtab[i][j]);
//if ( j+1<256 ) fprintf(stdout,",");
}
fprintf(stdout,"},\n");
//fprintf(stdout,"},\n");
}
fprintf(stdout,"};\n");
fflush ( stdout );
//fprintf(stdout,"};\n");
//fflush ( stdout );
if ( g_hashtab[0][0] != 6720717044602784129LL ) return false;

258
hashtab.cpp
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