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Languguage OS 2
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Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
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nihcl-30.lha
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nihcl-3.0
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vector
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DoubleVect.c
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C/C++ Source or Header
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1990-05-16
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2KB
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93 lines
/* DoubleVect.c -- Data type-specific functions for class DoubleVec
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
June, 1986
Function:
Data type -specific functions for class DoubleVec.
Modification History:
$Log: DoubleVect.c,v $
* Revision 3.0 90/05/16 23:00:30 kgorlen
* Release for 1st edition.
*
*/
#include "DoubleVec.h"
#include "FloatVec.h"
#include "nihclconfig.h"
#include "nihclIO.h"
#include <iomanip.h>
#include <libc.h>
#define THIS DoubleVec
#define BASE Vector
// Conversion from float to double. Added by tk.
DoubleVec::DoubleVec(const FloatVec& fv) :
BASE(fv.length())
{
v = NULL;
if(n){
v = new double[n];
double* dp = v;
const float* fp = fv.pt();
unsigned i = n;
while(i--) *dp++ = double(*fp++);
}
}
static int typeCmp(const void* a, const void* b)
{
double t = *(double*)a-*(double*)b;
if (t < 0) return -1;
if (t > 0) return 1;
return 0;
}
void THIS::sort()
{
qsort(v,n,sizeof(double),typeCmp);
}
unsigned THIS::hash() const
{
unsigned h = n;
unsigned i = n*div_sizeof_int(sizeof(double));
unsigned* vv = (unsigned*)v;
while (i--) h ^= *vv++;
return h;
}
void THIS::printOn(ostream& strm) const
{
for (unsigned i=0; i<n; i++) {
if (i>0 && (i%6 == 0)) strm << "\n\t";
strm << setw(13) << setprecision(5) << v[i];
}
}
void THIS::scanFrom(istream& strm)
{
extern const int NIHCL_NYET;
setError(NIHCL_NYET,DEFAULT,className(),"scanFrom");
}