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# VOL_dvector Class Reference

vector of doubles. More...

`#include <VolVolume.hpp>`

List of all members.

## Public Member Functions
| VOL_dvector (const int s)
| Construct a vector of size s.
| VOL_dvector ()
| Default constructor creates a vector of size 0.
| VOL_dvector (const VOL_dvector &x)
| Copy constructor makes a replica of x.
| ~VOL_dvector ()
| The destructor deletes the data array.
int | size () const
| Return the size of the vector.
double & | operator[] (const int i)
| Return a reference to the `i`-th entry.
double | operator[] (const int i) const
| Return the `i`-th entry.
void | clear ()
| Delete the content of the vector and replace it with a vector of length 0.
void | cc (const double gamma, const VOL_dvector &w)
| Convex combination.
void | allocate (const int s)
| delete the current vector and allocate space for a vector of size `s`.
void | swap (VOL_dvector &w)
| swaps the vector with `w`.
VOL_dvector & | operator= (const VOL_dvector &w)
| Copy `w` into the vector.
VOL_dvector & | operator= (const double w)
| Replace every entry in the vector with `w`.
## Public Attributes
double * | v
| The array holding the vector.
int | sz
| The size of the vector.

## Detailed Description

vector of doubles.

It is used for most vector operations.

Note: If `VOL_DEBUG` is `defined` to be 1 then each time an entry is accessed in the vector the index of the entry is tested for nonnegativity and for being less than the size of the vector. It's good to turn this on while debugging, but in final runs it should be turned off (beause of the performance hit).

Definition at line 143 of file VolVolume.hpp.

## Constructor & Destructor Documentation

VOL_dvector::VOL_dvector | ( | const int | s | ) | `[inline]`

Construct a vector of size s.

The content of the vector is undefined.

Definition at line 152 of file VolVolume.hpp.

References sz, v, and VOL_TEST_SIZE.

VOL_dvector::VOL_dvector | ( |  | ) | `[inline]`

Default constructor creates a vector of size 0.

Definition at line 157 of file VolVolume.hpp.

VOL_dvector::VOL_dvector | ( | const VOL_dvector & | x | ) | `[inline]`

Copy constructor makes a replica of x.

Definition at line 159 of file VolVolume.hpp.

References sz, and v.

VOL_dvector::~VOL_dvector | ( |  | ) | `[inline]`

The destructor deletes the data array.

Definition at line 167 of file VolVolume.hpp.

References v.

## Member Function Documentation

int VOL_dvector::size | ( |  | ) | const`[inline]`

Return the size of the vector.

Definition at line 170 of file VolVolume.hpp.

References sz.

double& VOL_dvector::operator[] | ( | const int | i | ) | `[inline]`

Return a reference to the `i`-th entry.

Definition at line 173 of file VolVolume.hpp.

References sz, v, and VOL_TEST_INDEX.

double VOL_dvector::operator[] | ( | const int | i | ) | const`[inline]`

Return the `i`-th entry.

Definition at line 179 of file VolVolume.hpp.

References sz, v, and VOL_TEST_INDEX.

void VOL_dvector::clear | ( |  | ) | `[inline]`

Delete the content of the vector and replace it with a vector of length 0.

Definition at line 186 of file VolVolume.hpp.

References sz, and v.

void VOL_dvector::cc | ( | const double | gamma,
|  | const VOL_dvector & | w |
| ) |  |  | `[inline]`

Convex combination.

Replace the current vector `v` with `v = (1-gamma) v + gamma w`.

Definition at line 193 of file VolVolume.hpp.

References sz, and v.

Referenced by VOL_primal::cc().

void VOL_dvector::allocate | ( | const int | s | ) | `[inline]`

delete the current vector and allocate space for a vector of size `s`.

Definition at line 209 of file VolVolume.hpp.

References sz, v, and VOL_TEST_SIZE.

void VOL_dvector::swap | ( | VOL_dvector & | w | ) | `[inline]`

swaps the vector with `w`.

Definition at line 216 of file VolVolume.hpp.

References sz, and v.

VOL_dvector& VOL_dvector::operator= | ( | const VOL_dvector & | w | ) |

Copy `w` into the vector.

VOL_dvector& VOL_dvector::operator= | ( | const double | w | ) |

Replace every entry in the vector with `w`.

## Member Data Documentation

double* VOL_dvector::v

The array holding the vector.

Definition at line 146 of file VolVolume.hpp.

Referenced by allocate(), cc(), clear(), operator[](), swap(), VOL_dvector(), and ~VOL_dvector().

int VOL_dvector::sz

The size of the vector.

Definition at line 148 of file VolVolume.hpp.

Referenced by allocate(), cc(), clear(), operator[](), size(), swap(), and VOL_dvector().

The documentation for this class was generated from the following file:

- /home/coin/SVN-release/Osi-0.98.1/Vol/src/VolVolume.hpp