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/*
*
* Copyright (c) 1994
* Hewlett-Packard Company
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Hewlett-Packard Company and Microsoft
* Corporation make no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
*/
#include <stddef.h>
#define __SEED 161803398
class __random_generator {
protected:
unsigned long table[55];
size_t index1;
size_t index2;
public:
unsigned long operator()(unsigned long limit) {
index1 = (index1 + 1) % 55;
index2 = (index2 + 1) % 55;
table[index1] = table[index1] - table[index2];
return table[index1] % limit;
}
void seed(unsigned long j);
__random_generator(unsigned long j) { seed(j); }
};
void __random_generator::seed(unsigned long j) {
unsigned long k = 1;
table[54] = j;
for (size_t i = 0; i < 54; i++) {
size_t ii = 21 * i % 55;
table[ii] = k;
k = j - k;
j = table[ii];
}
for (int loop = 0; loop < 4; loop++) {
for (i = 0; i < 55; i++)
table[i] = table[i] - table[(1 + i + 30) % 55];
}
index1 = 0;
index2 = 31;
}
__random_generator rd(__SEED);
unsigned long __long_random(unsigned long limit) {
return rd(limit);
}
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