/* (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands. See the copyright notice in the ACK home directory, in the file "Copyright". */ /* $Header$ */ /* NEGATE A FLOATING POINT */ /********************************************************/ /* Assumes exponent is located in bytes 0 & 1 */ /********************************************************/ #include "FP_types.h" ngf8(f) _double f; { unsigned char *p; if (f[0] != 0 || f[1] != 0) { p = (unsigned char *) &f; *p ^= 0x80; } }