[bug #58901] Blank values for non-standard integer types in FITS tables.

[Mohammad Akhlaghi]

URL:
  <https://savannah.gnu.org/bugs/?58901>

                 Summary: Blank values for non-standard integer types in FITS
tables.
                 Project: GNU Astronomy Utilities
            Submitted by: makhlaghi
            Submitted on: Wed 05 Aug 2020 01:17:06 AM BST
                Category: Table
                Severity: 3 - Normal
              Item Group: Output not reasonable
                  Status: In Progress
                 Privacy: Public
             Assigned to: makhlaghi
             Open/Closed: Open
         Discussion Lock: Any

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Details:

When writing a FITS table column with non-standard FITS types (int8_t,
uint16_t, uint32_t and uint64_t), we simply write the blank value into the
TNULL keyword. However, according to the FITS standard, TNULL is checked
before TZERO or tSCAL are applied to these non-standard data types.

As a result, when reading from that FITS table, the blank elements aren't
specified as blank any more! 




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