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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
| commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
| tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /noao/imred/vtel/d1900.x | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'noao/imred/vtel/d1900.x')
| -rw-r--r-- | noao/imred/vtel/d1900.x | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/noao/imred/vtel/d1900.x b/noao/imred/vtel/d1900.x new file mode 100644 index 00000000..7af25a4b --- /dev/null +++ b/noao/imred/vtel/d1900.x @@ -0,0 +1,15 @@ +# D1900 -- Function to return the number of days since the turn of the +# century. + +int procedure d1900 (month, day, year) + +int month, day, year # m,d,y of date + +int mac[12] +data mac/0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334/ + +begin + d1900 = 365 * year + (year - 1) / 4 + mac[month] + day + if (month >= 3 && mod(year,4) == 0) + d1900 = d1900 + 1 +end |