interval Struct Reference

#include <interval.h>

Public Member Functions
	interval (const ring r=currRing)
	interval (number, const ring r=currRing)
	interval (number, number, const ring r=currRing)
	interval (interval *)
	~interval ()
interval &	setRing (ring)

Data Fields
number	lower
number	upper
ring	R

Detailed Description

Definition at line 6 of file interval.h.

Constructor & Destructor Documentation

interval() [1/4]

interval::interval

(

const ring

r = currRing

)

Definition at line 14 of file interval.cc.

{
  lower = n_Init(0, r->cf);
  upper = n_Init(0, r->cf);
  R = rIncRefCnt(r);
}

interval() [2/4]

interval::interval	(	number	a,
		const ring	r = currRing
	)

Definition at line 21 of file interval.cc.

{
  // dangerous: check if a is in coefs r->cf
  lower = a;
  upper = n_Copy(a, r->cf);
  R = rIncRefCnt(r);
}

interval() [3/4]

interval::interval	(	number	a,
		number	b,
		const ring	r = currRing
	)

Definition at line 29 of file interval.cc.

{
  lower = a;
  upper = b;
  R = rIncRefCnt(r);
}

interval() [4/4]

interval::interval

(

interval *

I

)

Definition at line 36 of file interval.cc.

{
  lower = n_Copy(I->lower, I->R->cf);
  upper = n_Copy(I->upper, I->R->cf);
  R = rIncRefCnt(I->R);
}

~interval()

interval::~interval

(

)

Definition at line 43 of file interval.cc.

{
  n_Delete(&lower, R->cf);
  n_Delete(&upper, R->cf);
  rDecRefCnt(R);
}

Member Function Documentation

setRing()

interval & interval::setRing

(

ring

r

)

Definition at line 50 of file interval.cc.

{
  if (R != r)
  {
    // check if coefficient fields are equal
    // if not pass numbers to new cf-field
    if (R->cf != r->cf)
    {
      nMapFunc fun = n_SetMap(R->cf, r->cf);
      number lo = fun(lower, R->cf, r->cf),
             up = fun(upper, R->cf, r->cf);
      n_Delete(&lower, R->cf);
      n_Delete(&upper, R->cf);
      lower = lo;
      upper = up;
    }
    rDecRefCnt(R);
    R = rIncRefCnt(r);
  }
 
  return *this;
}

Field Documentation

lower

number interval::lower

Definition at line 8 of file interval.h.

R

ring interval::R

Definition at line 10 of file interval.h.

upper

number interval::upper

Definition at line 9 of file interval.h.

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The documentation for this struct was generated from the following files:

• Singular/dyn_modules/interval/interval.h
• Singular/dyn_modules/interval/interval.cc