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33 * GROningen Mixture of Alchemy and Childrens' Stories
38 #include "gmx_header_config.h"
41 #ifdef GMX_NATIVE_WINDOWS
50 #ifdef GMX_NATIVE_WINDOWS
51 return (int)_getpid();
58 /* generate a random number. */
63 real rm = 100000000.0; /* same number as m, but real format */
68 int irandh,irandl,multh,multl;
72 /* multiply irand by mult, but take into account that overflow
73 * must be discarded, and do not generate an error.
79 irand = ((irandh*multl+irandl*multh) % m1) * m1 + irandl*multl;
80 irand = (irand + 1) % m;
82 /* convert irand to a real random number between 0 and 1. */
85 if ((r <= 0) || (r > 1))