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- /* Float.c -- implementation of Float object
-
- THIS SOFTWARE FITS THE DESCRIPTION IN THE U.S. COPYRIGHT ACT OF A
- "UNITED STATES GOVERNMENT WORK". IT WAS WRITTEN AS A PART OF THE
- AUTHOR'S OFFICIAL DUTIES AS A GOVERNMENT EMPLOYEE. THIS MEANS IT
- CANNOT BE COPYRIGHTED. THIS SOFTWARE IS FREELY AVAILABLE TO THE
- PUBLIC FOR USE WITHOUT A COPYRIGHT NOTICE, AND THERE ARE NO
- RESTRICTIONS ON ITS USE, NOW OR SUBSEQUENTLY.
-
- Author:
- K. E. Gorlen
- Bg. 12A, Rm. 2033
- Computer Systems Laboratory
- Division of Computer Research and Technology
- National Institutes of Health
- Bethesda, Maryland 20892
- Phone: (301) 496-1111
- uucp: uunet!nih-csl!kgorlen
- Internet: kgorlen@alw.nih.gov
- December, 1985
-
- Function:
-
- Provides an object that contains a double.
-
- $Log: Float.c,v $
- * Revision 3.0 90/05/20 00:19:36 kgorlen
- * Release for 1st edition.
- *
- */
-
- #include "Float.h"
- #include "nihclIO.h"
-
- #define THIS Float
- #define BASE Object
- #define BASE_CLASSES BASE::desc()
- #define MEMBER_CLASSES
- #define VIRTUAL_BASE_CLASSES Object::desc()
-
- DEFINE_CLASS(Float,1,"$Header: /afs/alw.nih.gov/unix/sun4_40c/usr/local/src/nihcl-3.0/share/lib/RCS/Float.c,v 3.0 90/05/20 00:19:36 kgorlen Rel $",NULL,NULL);
-
- Float::Float(istream& strm) { parseFloat(strm); }
-
- int Float::compare(const Object& ob) const
- {
- assertArgSpecies(ob,classDesc,"compare");
- register double t = val-castdown(ob).val;
- if (t < 0) return -1;
- if (t > 0) return 1;
- return 0;
- }
-
- void Float::deepenShallowCopy() {}
-
- unsigned Float::hash() const
- {
- union {
- unsigned asint[2];
- double asdouble;
- };
- asdouble = val;
- return asint[0] ^ asint[1];
- }
-
- bool Float::isEqual(const Object& ob) const
- {
- return ob.isSpecies(classDesc) && val==castdown(ob).val;
- }
-
- const Class* Float::species() const { return &classDesc; }
-
- void Float::printOn(ostream& strm) const
- {
- strm << val;
- }
-
- void Float::scanFrom(istream& strm) { parseFloat(strm); }
-
- Float::Float(OIOin& strm)
- : BASE(strm)
- {
- strm >> val;
- }
-
- void Float::storer(OIOout& strm) const
- {
- BASE::storer(strm);
- strm << val;
- }
-
- Float::Float(OIOifd& fd)
- : BASE(fd)
- {
- fd >> val;
- }
-
- void Float::storer(OIOofd& fd) const
- {
- BASE::storer(fd);
- fd << val;
- }
-