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/*
FALCON - The Falcon Programming Language.
FILE: memhash.cpp
Calculates checksum + hash value of a memory range
-------------------------------------------------------------------
Author: Giancarlo Niccolai
Begin: lun ago 23 23:01:46 CEST 2004
-------------------------------------------------------------------
(C) Copyright 2004: the FALCON developers (see list in AUTHORS file)
See LICENSE file for licensing details.
*/
#include <falcon/setup.h>
#include <falcon/common.h>
#include <falcon/string.h>
namespace Falcon {
uint32 calcMemHash( const char *memory, uint32 size )
{
uint32 sum = flc_HASH_SEED;
int i = 2;
for( const char *p = memory; p < memory + size; p++, i++ ) {
sum += static_cast<byte>( *p ) * i;
}
return sum;
}
uint32 calcCstrHash( const char *cstring )
{
uint32 sum = flc_HASH_SEED;
int i = 2;
for( const char *p = cstring; *p != 0; p++, i++ ) {
sum += static_cast<byte>( *p ) * i;
}
return sum;
}
uint32 calcStringHash( const String &str )
{
uint32 sum = flc_HASH_SEED;
int i = 2;
uint32 len = str.length();
for( uint32 pos = 0; pos < len ; pos++, i++ ) {
sum += str.getCharAt( pos ) * i;
}
return sum;
}
}
/* end of memhash.cpp */
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