International
Tables for
Crystallography
Volume G
Definition and exchange of crystallographic data
Edited by S. R. Hall and B. McMahon

© International Union of Crystallography 2006
International Tables for Crystallography (2006). Vol. G. ch. 5.4, p. 536

Table 5.4.12.1 

H. J. Bernsteina* and S. R. Hallb

a Department of Mathematics and Computer Science, Kramer Science Center, Dowling College, Idle Hour Blvd, Oakdale, NY 11769, USA, and bSchool of Biomedical and Chemical Sciences, University of Western Australia, Crawley, Perth, WA 6009, Australia
Correspondence e-mail:  yaya@bernstein-plus-sons.com

Table 5.4.12.1 | top | pdf |
Parameter statements in CIFtbx

NUMCHAR Maximum number of characters in data names (default 48)
MAXBUF Maximum number of characters in a line (default 200, increased to 4096 in CIFtbx 2.7 and later)
NUMPAGE Number of memory resident pages (default 10)
NUMCPP Number of characters per page (default 16 384)
NUMDICT Number of entries in dictionary tables (default 3200)
NUMHASH Number of hash table entries (a modest prime, default 53)
NUMBLOCK Number of entries in data-block tables (default 500)
NUMLOOP Number of loops in a data block (default 50)
NUMITEM Number of items in a loop (default 50)
MAXTAB Maximum number of tabs in output CIF line (default 10)
MAXBOOK Maximum number of simultaneous bookmarks (default 1000)