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C--------------------------------------------------------------------------
subroutine ftpcom(ounit,commnt,status)
C write a COMMENT record to the FITS header
C
C ounit i fortran output unit number
C commnt c input comment string
C OUTPUT PARAMETERS:
C status i output error status (0 = ok)
C
C written by Wm Pence, HEASARC/GSFC, June 1991
integer ounit,status,strlen,actlen,i,nkeys,c1,c2
character*(*) commnt
character*80 rec
if (status .gt. 0)return
C find the length of the string, and write it out 70 characters at a time
nkeys=1
strlen=len(commnt)
actlen=strlen
do 10 i=strlen,1,-1
if (commnt(i:i) .ne. ' ')then
actlen=i
go to 20
end if
10 continue
20 c1=1
c2=min(actlen,70)
nkeys=(actlen-1)/70+1
do 30 i=1,nkeys
rec='COMMENT '//commnt(c1:c2)
call ftprec(ounit,rec,status)
c1=c1+70
c2=min(actlen,c2+70)
30 continue
end
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