### AST_TESTCELL

Tests if a single HEALPix cell is included in a Moc

#### Description:

This function returns .TRUE. if the Moc includes the specified cell.

#### Invocation

RESULT = AST_TESTCELL( THIS, ORDER, NPIX, PARENT, STATUS )

#### Arguments

##### THIS = INTEGER (Given)
Pointer to the Moc to be modified.
##### ORDER = INTEGER (Given)
The HEALPix order of the cell to test. .FALSE. is returned if this is higher than the maximum order allowed in the Moc (as given by its MaxOrder attribute).
##### NPIX = INTEGER$\ast$8 (Given)
The " npix" value identifying the cell to test (see the MOC recommendation for more details).
##### PARENT = LOGICAL (Given)
Indicates the value to return if the tested cell is not included at the specified order, but a parent cell (at a lower order) is included.
##### STATUS = INTEGER (Given and Returned)
The global status.

#### Returned Value

##### AST_TESTCELL = LOGICAL
.TRUE. if the specified cell is included in the Moc at the specified order, of (if PARENT is non-zero) a parent cell is included in the Moc. .FALSE. otherwise.