# datalink_m2m Class Reference
[Core BDM classes]

`#include <libBM.h>`

Inheritance diagram for datalink_m2m:

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Collaboration diagram for datalink_m2m:

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List of all members.

## Public Member Functions
| datalink_m2m (const RV &rv, const RV &rvc, const RV &rv_up, const RV &rvc_up)
| Constructor.
vec | get_cond (const vec &val_up, const vec &cond_up)
| Get cond for myself from val and cond of "Up".
vec | get_cond (const vec &val_up)
| Construct condition.
void | fill_val_cond (vec &val_up, const vec &val, const vec &cond)
vec | get_val (const vec &val_up)
| Get val for myself from val of "Up".
void | fill_val (vec &val_up, const vec &val)
| Fill val of "Up" by my pieces.
## Protected Attributes
ivec | c2c_up
| cond-to-cond link, indeces of the upper cond
ivec | c2c_lo
| cond-to-cond link, indeces of the local cond
int | condsize
| Remember how long cond should be.
ivec | v2c_up
| upper_val-to-local_cond link, indeces of the upper val
ivec | v2c_lo
| upper_val-to-local_cond link, ideces of the local cond
int | valsize
| Remember how long val should be.
int | valupsize
| Remember how long val of "Up" should be.
ivec | v2v_up
| val-to-val link, indeces of the upper val

## Detailed Description

DataLink is a connection between mpdf and its superordinate (Up) This class links

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

- work/git/mixpp/bdm/stat/libBM.h