support/fdlibm/e_scalb.c
author Jan Vrany <jan.vrany@fit.cvut.cz>
Wed, 16 Jan 2013 21:31:50 +0000
branchrefactoring-vmdata
changeset 1973 617e6a088dd1
parent 1818 2e5ed72e7dfd
child 2380 9195eccdcbd9
permissions -rw-r--r--
- JavaListInspectorView class: JavaListInspectorView - JavaFormalParameterNode class: JavaFormalParameterNode - JavaTypeNode class: JavaTypeNode - JavaScanner class: JavaScanner - JavaArrayTypeNode class: JavaArrayTypeNode - JavaParser class: JavaParser - JavaCommentNode class: JavaCommentNode - JavaIntTypeNode class: JavaIntTypeNode - JavaParseNodeBuilder class: JavaParseNodeBuilder - JavaMethodDeclaratorNode class: JavaMethodDeclaratorNode - JavaScannerBase class: JavaScannerBase - JavaFloatTypeNode class: JavaFloatTypeNode - JavaDocNode class: JavaDocNode - JavaClassOrInterfaceTypeNode class: JavaClassOrInterfaceTypeNode - stx_libjava_tools class: stx_libjava_tools - JavaSettingsApplication class: JavaSettingsApplication - JavaLongTypeNode class: JavaLongTypeNode - JavaParserII class: JavaParserII - JavaSourceReference class: JavaSourceReference - JavaCharTypeNode class: JavaCharTypeNode - JavaParser_Eclipse class: JavaParser_Eclipse - JavaSyntaxHighlighter class: JavaSyntaxHighlighter - JavaMethodNode class: JavaMethodNode - JavaBooleanTypeNode class: JavaBooleanTypeNode - JavaDoubleTypeNode class: JavaDoubleTypeNode - JavaSetInspectorView class: JavaSetInspectorView - JavaParseNode class: JavaParseNode - JavaVoidTypeNode class: JavaVoidTypeNode - JavaMapInspectorView class: JavaMapInspectorView - JavaParserI class: JavaParserI - extensions ...


/* @(#)e_scalb.c 1.3 95/01/18 */
/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunSoft, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice 
 * is preserved.
 * ====================================================
 */

/*
 * __ieee754_scalb(x, fn) is provide for
 * passing various standard test suite. One 
 * should use scalbn() instead.
 */

#include "fdlibm.h"

#ifdef _SCALB_INT
#ifdef __STDC__
	double __ieee754_scalb(double x, int fn)
#else
	double __ieee754_scalb(x,fn)
	double x; int fn;
#endif
#else
#ifdef __STDC__
	double __ieee754_scalb(double x, double fn)
#else
	double __ieee754_scalb(x,fn)
	double x, fn;
#endif
#endif
{
#ifdef _SCALB_INT
	return scalbn(x,fn);
#else
	if (isnan(x)||isnan(fn)) return x*fn;
	if (!finite(fn)) {
	    if(fn>0.0) return x*fn;
	    else       return x/(-fn);
	}
	if (rint(fn)!=fn) return (fn-fn)/(fn-fn);
	if ( fn > 65000.0) return scalbn(x, 65000);
	if (-fn > 65000.0) return scalbn(x,-65000);
	return scalbn(x,(int)fn);
#endif
}