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Diffstat (limited to 'pkg/tbtables/fitsio/ftsdnn.f')
| -rw-r--r-- | pkg/tbtables/fitsio/ftsdnn.f | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/pkg/tbtables/fitsio/ftsdnn.f b/pkg/tbtables/fitsio/ftsdnn.f new file mode 100644 index 00000000..9bd41107 --- /dev/null +++ b/pkg/tbtables/fitsio/ftsdnn.f @@ -0,0 +1,15 @@ +C---------------------------------------------------------------------- + subroutine ftsdnn(value) + +C set a 64-bit pattern equal to an IEEE Not-a-Number value +C A NaN has all the exponent bits=1, and the fractional part +C not=0. +C +C written by Wm Pence, HEASARC/GSFC, February 1991 + + integer value(2) + +C there are many NaN values; choose a simple one in which all bits=1 + value(1)=-1 + value(2)=-1 + end |