11dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* e_scalbf.c -- float version of e_scalb.c. 21dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. 31dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 41dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 51dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 61dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ==================================================== 71dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 81dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 91dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Developed at SunPro, a Sun Microsystems, Inc. business. 101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Permission to use, copy, modify, and distribute this 111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * software is freely granted, provided that this notice 121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * is preserved. 131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ==================================================== 141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifndef lint 171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic char rcsid[] = "$FreeBSD: src/lib/msun/src/e_scalbf.c,v 1.10 2005/12/06 20:12:38 obrien Exp $"; 181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "math.h" 211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "math_private.h" 221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef _SCALB_INT 241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectfloat 251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__ieee754_scalbf(float x, int fn) 261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#else 271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectfloat 281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__ieee754_scalbf(float x, float fn) 291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef _SCALB_INT 321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return scalbnf(x,fn); 331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#else 341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((isnanf)(x)||(isnanf)(fn)) return x*fn; 351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!finitef(fn)) { 361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if(fn>(float)0.0) return x*fn; 371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else return x/(-fn); 381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (rintf(fn)!=fn) return (fn-fn)/(fn-fn); 401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ( fn > (float)65000.0) return scalbnf(x, 65000); 411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (-fn > (float)65000.0) return scalbnf(x,-65000); 421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return scalbnf(x,(int)fn); 431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__weak_reference(scalbf, ldexpf); 47