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33 * GROningen Mixture of Alchemy and Childrens' Stories
40 #ifdef GMX_NATIVE_WINDOWS
52 #ifdef GMX_NATIVE_WINDOWS
53 return (int)_getpid();
60 /* generate a random number. */
65 real rm = 100000000.0; /* same number as m, but real format */
70 int irandh, irandl, multh, multl;
74 /* multiply irand by mult, but take into account that overflow
75 * must be discarded, and do not generate an error.
81 irand = ((irandh*multl+irandl*multh) % m1) * m1 + irandl*multl;
82 irand = (irand + 1) % m;
84 /* convert irand to a real random number between 0 and 1. */
87 if ((r <= 0) || (r > 1))