1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)d_cnjg.c 5.3 01/15/91 7 */ 8 9 #include "complex" 10 #ifdef tahoe 11 #include <tahoe/math/FP.h> 12 #endif 13 14 d_cnjg(r, z) 15 dcomplex *r, *z; 16 { 17 r->dreal = z->dreal; 18 #ifndef tahoe 19 r->dimag = - z->dimag; 20 #else tahoe 21 r->dimag = z->dimag; 22 if (z->dimag == 0.0) 23 return; 24 else 25 *(unsigned long *)&(z->dimag) ^= SIGN_BIT; 26 #endif tahoe 27 } 28