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Diffstat (limited to 'pkg/tbtables/fitsio/ftghsp.f')
| -rw-r--r-- | pkg/tbtables/fitsio/ftghsp.f | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/pkg/tbtables/fitsio/ftghsp.f b/pkg/tbtables/fitsio/ftghsp.f new file mode 100644 index 00000000..0b9161fd --- /dev/null +++ b/pkg/tbtables/fitsio/ftghsp.f @@ -0,0 +1,40 @@ +C-------------------------------------------------------------------------- + subroutine ftghsp(ounit,nexist,nmore,status) + +C Get Header SPace +C return the number of additional keywords that will fit in the header +C +C ounit i Fortran I/O unit number +C nexist i number of keywords already present in the CHU +C nmore i number of additional keywords that will fit in header +C -1 indicates that there is no limit to the number of keywords +C status i output error status (0 = ok) +C +C written by Wm Pence, HEASARC/GSFC, June 1991 + + integer ounit,nexist,nmore,status + +C COMMON BLOCK DEFINITIONS:-------------------------------------------- + integer nb,ne + parameter (nb = 20) + parameter (ne = 200) + integer bufnum,chdu,hdutyp,maxhdu,hdstrt,hdend,nxthdr,dtstrt + integer nxtfld + logical wrmode + common/ft0001/bufnum(199),chdu(nb),hdutyp(nb),maxhdu(nb), + & wrmode(nb),hdstrt(nb,ne),hdend(nb),nxthdr(nb),dtstrt(nb),nxtfld +C END OF COMMON BLOCK DEFINITIONS----------------------------------- + + integer ibuff + if (status .gt. 0)return + ibuff=bufnum(ounit) + + nexist=(hdend(ibuff)-hdstrt(ibuff,chdu(ibuff)))/80 + if (dtstrt(ibuff) .lt. 0)then +C the max size of the header has not been defined, so there +C is no limit to the number of keywords which may be written. + nmore=-1 + else + nmore=(dtstrt(ibuff)-hdend(ibuff))/80-1 + end if + end |