astHasColumnastHasColumn - Returns a flag indicating if a column is present in a Table

Description:
This function returns a flag indicating if a named column exists in a TableTable, for instance, by having been added to to the Table using astAddColumnastAddColumn.
Synopsis:
int astHasColumn( AstTable $*$this, const char $*$column )
Parameters:
this
Pointer to the Table.
column
The character string holding the upper case name of the column. Trailing spaces are ignored.
Notes:
  • A value of zero is returned for if an error occurs.