CHANGES

Changes for CCfits 2.6

- For compatibility with C++17, removed dependencies on
std::binary_function (4/21).
   FITSUtil.h
   
- The internal HDU getScaling function is not properly handling the
case where an image of unsigned integer type has a BZERO keyword
but not a BSCALE.  The result is it wrongly assumes the image
is a signed integer type.(4/21)
   HDUCreator.cxx
   
- The keyword categories hardcoded and returned by the
HDU::keywordCategories() function now apply only to the 
HDU::copyAllKeys() function.  HDU::readAllKeys() is hardcoded
to a separate (and larger) list of categories.  This is to allow
readAllKeys() to retain its previous behavior, while copyAllKeys()
default categories have been narrowed (see items below from 06-07/18).
(03/21)
   HDU.cxx
   HDU.h
   
- Fixes to updating of Columns' internal buffers for certain cases
of writes or insertions which add rows to a table. Also includes a
speed increase to internal Column write function. (03/21)
   Column.h
   ColumnData.h
   ColumnVectorData.h
   Table.cxx

- Bug fix needed for creation of ColumnVectorData<unsigned short>
objects.  (06/20)
   Column.cxx
   
- All std::bad_cast exceptions are now caught by reference. (09/19)
   Column.cxx
   ColumnT.h
   FITS.cxx
   KeywordT.h
   PHDUT.h

- Enable support of long string keywords (which use the CONTINUE key)
  (8/18)
   HDU.cxx,.h 
   KeyData.cxx,.h
   Keyword.cxx,.h
   KeywordCreator.cxx,.h
   NewKeyword.h

- Replaced all uses of std::auto_ptr with std::unique_ptr.  This is made
in tandem with configuration changes which add a C++11 compiler flag
when necessary.  (08/18)
   FITS.cxx
   HDU.cxx
   cookbook.cxx

- Added capability for user to specify keyword categories to read/copy. 
 Removed TYP_WCS_KEY,TYP_CMPRS_KEY from s_iKeywordCategories, as they are
 file-specific keywords. (7/18)
   HDU.cxx, .h
   
- Bug fix to writeHistory and writeComment functions.  When copying via
the get/write functions, mult-line input was not properly formatted upon
output. (07/18)
   HDU.cxx

- Removed FITSBase pattern (10/17)
   FITSBase.cxx, .h
   FITS.cxx, .h
   ../BUILD_DIR/Makefile-CCfits
   ExtHDU.cxx, .h
   HDU.cxx, .h
   CMakeLists.txt
   HDUCreator.cxx, .h 
   Table.cxx, .h  
   AsciiTable.cxx, .h 
   BinTable.cxx, .h  
   PHDU.cxx, .h  
   PrimaryHDU.h  
   GroupTable.cxx, .h  
   ImageExt.h

- Removed TYP_CKSUM_KEY from s_iKeywordCategories.  It was copying the 
CHECKSUM and DATASUM keywords from the infile to the outfile, which leads to 
incorrect values for the outfile. (6/17)
   HDU.cxx, .h

- In 'CCfits' header aggregator file, added special treatment for
cookbook build.  This is to allow the stand-alone CCfits to build the
cookbook even when build directory is not named "CCfits".  (8/16)
   cookbook.cxx
   CCfits

Changes for CCfits 2.5
- For reading Keywords, added conversion of numerical types to strings.
(12/15)
   Keyword.cxx, .h
   KeywordT.h
- Added support for variable-width string columns (12/15)
   CCfits.h
   Column.cxx, .h
   ColumnCreator.cxx
   ColumnData.cxx, .h
   BinTable.cxx
- Added new ExtHDU::copyColumn function, implemented in the Table 
class. (11/15)
   AsciiTable.cxx
   BinTable.cxx
   Column.cxx, .h
   ExtHDU.cxx, .h
   Table.cxx, .h
   (This also required a conforming change to editcol.c in CFITSIO.)
- Changed the Column container member of the Table class from a map
to a multimap (now typedefed to 'ColMap').  This is to allow proper 
handling of case where multiple columns within table share the same
name.  NOTE: This resulted in a change to the public interface:
ExtHDU and Table column() accessor functions now return a multimap. (10/15)
   AsciiTable.cxx
   BinTable.cxx
   CCfits.h
   ExtHDU.cxx, .h
   FITS.cxx
   Table.cxx, .h
- Removed the ImageExt::image() accessor function from the public
interface.  This was intended for internal use only. (10/15)
   ImageExt.h
- Now allows image write calls to expand the outer-most (NAXISN)
dimension of the image.  This was a feature of CFITSIO that wasn't
previously supported in CCfits. (10/15)
   (same files as in following entry below)
- Implemented full-read internal caching for images.  Previously
image read calls resulted in disk reads even when current values
were available in memory.  (10/15)
   PrimaryHDU.h
   Image.h
   PHDUT.h
   ImageExt.h
   ExtHDUT.h 
   HDU.h
- Fix to ColumnData::writeData.  It should not resize the internal
m_data vector to a smaller size when a write operation passes in a just
a partial portion of the column.  (gcc had been covering up this bug
since the resize call wasn't actually erasing any values). (9/15)
   ColumnData.h
- Added Column::read functions for retrieving a single row of a vector
column into a std::vector.  Previously this was only allowed for
valarrays.  (9/15)
   Column.cxx, .h
   ColumnT.h   
- Added new function HDU::readNextKey. (9/15)
   HDU.cxx, .h
   KeywordCreator.cxx, .h
- Removed #ifdef HAVE_CONFIG_H test for including config.h due to
potential conflicts with users' customized autotools config.h files.
(8/15)
   ColumnVectorData.h
   FITSUtilT.h
   Table.h
- Converted 'delete' calls to 'free()' in KeywordCreator's
getLongValueString function.  This removes memory mismatch errors
in valgrind output.  (3/15)
   KeywordCreator.cxx
- Bug fix to ImageExt::put (accessed through HDU's "operator<<").  It
was not showing output for the highest numbered axis.  (Submitted by
Georgios Bekiaris) (2/15)
- Removed vestigal code file NewColumn.h.  (This was reported to have
caused cookbook build errors on ubuntu 14.04.) (5/14)
- Added proper handling of 'D' exponent notation when reading in keyword
values of type float or complex.  This is allowed by the FITS standard,
but the C++ stringstream conversion operator was not recognizing it.
This caused value to be truncated at the 'D' for floats, and to be
ignored altogether for complex.  The change was made entirely in the
parseRecord() function. (4/14)
   KeywordCreator.cxx
- In Column::setLimits, removed the dynamic allocation of the static
variable arrays.  These led to small memory leaks (submitted by David
Riethmiller).  (3/14)
   Column.cxx
- Added an #include <iterator> statement to HDU.cxx.  Windows
compilation was failing due to it not finding std::back_inserter.
(Submitted by Daniel Kaneider) (11/13)
   HDU.cxx
- Added read/write capability for images of LONGLONG type. (10/13)
   CCfits.h
   ExtHDUT.h
   FITSUtil.h
   HDUCreator.cxx
   PHDUT.h
- Added a missing 'break' statement to 'case Tlonglong' in 
FITSType2String function (submitted by DavidBinderman). (09/13)
   FITSUtil.cxx
- Replaced the use of the valarray '==' operator with an explicit
loop in ColumnVectorData<T>::compare.  This was to get around a compiler
glitch that appeared on Mac 10.9 w/ gcc 4.2.1.  (07/13)
- Bug fix to HDU::getNamedLines function.  The starting point for the
search needs to be reset to the top of the HDU prior to the search loop.
(fix submitted by Gavin Blakeman) (01/13)
   HDU.cxx
- Fixed a couple problems with the FITS::addTable function.  It was not
allowing a new table with a pre-existing hdu name even when the version
number was different.  Also it was not writing the EXTVER keyword when
the version number was > 1.  (03/12)
   FITS.cxx
   Table.cxx

Changes for CCfits 2.4
- Fix to allow writing to compressed images of BITPIX=32 on 64-bit 
Linux platforms.  This is done by storing the internal image array as
type int rather than type long.  Compatibility issue: this changes the
return type of the ImageExt<T>::image() function.  (12/11)
   HDUCreator.cxx
   PHDUT.h
   ExtHDUT.h
- Fixes made to the null-value versions of the write functions for
primary and extension images.  (12/11)
   PHDUT.h
   ExtHDUT.h
- Added the ability of variable-width columns to perform the usual
numerical data type casting when the write function input arrays do not
contain exactly the same type of values as the Column object.  This
change also includes much internal code refactoring among the various
vector column write functions.  (11/11)
   ColumnT.h
- To remove Intel compiler warnings, replaced switch/case with
specialized templates in FitsNullValue functor.  Also cleaned up integer
type casting in deleteRows function, which fixes a bug in the Column
object's internal storage of data.  (11/11)
   FITSUtil.h
   ColumnVectorData.h
- Fix for case of using basic FITS constructor on files containing
multiple extensions with the same name AND version number.  (11/11)
   ExtHDU.cxx
   HDUCreator.cxx, .h
- BinTable's addColumn should call makeThisCurrent().  Otherwise user
has to do it.  (11/11)
   BinTable.cxx
   
Changes for CCfits 2.3
- Bug fix for the setting of the column's lower data limit for the
specific case of unsigned longs.  It had been leaving this unitialized.
(11/10)
   Column.cxx
- When images are read from disk via CFITSIO, now copying directly to
m_image valarray rather than a temporary C-style array.  This cuts the
required memory usage in half for this operation, important for very
large images.  (11/10)
   Image.h
- New function: ExtHDU::isCompressed(), returns true if image is stored
with compression.  (11/10)
   ExtHDU.cxx, .h
- For the basic version of the FITS constructor, when called in Write
mode on a pre-existing file, it now automatically reads all of the
headers rather than just the primary.  It also now passes along the
user's readDataFlag and optional primary keys settings.  (11/10)
   FITS.cxx
- In all FITS::read functions, now performs check to prevent multiple 
entries of the same HDU in the extensions multimap.  (11/10)
   FITS.cxx, .h
   FITSBase.h
- In the 2 deleteExtension functions, all extensions following the
deleted one are now appropriately reindexed.  (11/10)
   FITS.cxx
- Fix to the PHDU::write functions which take a nullValue argument.
Neither could be instantiated due to an invalid static_cast of pointers.
(11/10)
   PHDUT.h
- Changed Keyword's keytype() get function from protected to public.
Did same for PHDU's simple() and extend() functions.  (11/10)
   Keyword.h
   PHDU.h
- Bug fix in Image<T>'s assignment operator.  It was trying to swap
with a const object.  Since this isn't instantiated anywhere, compilers
were letting it go. (11/10)
   Image.h
- Bug fix in Table::copyData.  New Columns' parent pointers must
be reset to the new Table.  Otherwise Columns created through the
FITS::copy public function will not be modifiable. (02/10)
   Table.cxx
   Column.h
- Bug fix for definition of ULBASE in FITSUtil.  In the operation
1 << 31, the "1" must be explicitly cast to an unsigned long.  Otherwise
the compiler may treat it as a signed int, for which a left-shift of 31
bits is undefined.  This was found to cause problems when reading images
of type signed or unsigned long AND the receiving valarray type required
casting, AND the platform was 64-bit Linux. (10/09)
   FITSUtil.cxx
   
Changes for CCfits 2.2
- Bug fix for reading and writing complex data types to a scalar column.
Also modified cookbook's readTable function to test this.
   ColumnData.cxx, .h  (09/09)
   cookbook.cxx
- Added public resetRead() function to Column. (09/09)
   Column.h
- Renamed the private FITS::extension() function to extensionMap().
This is to prevent overload confusion with the public const extension()
function.  This mix-up was causing users to have to explicitly declare
const FITS pointers to make sure the public function was the one called.
(08/09)
   FITS.cxx, .h
- Removed the storage of m_nullValue in ColumnData and
ColumnVectorData classes.  ColumnVectorData's private doWrite function
now receives nullValue as an argument rather than relying on the data
member.  This fixes an obscure ColumnVectorData::writeData bug, where
for valarrays of varying sizes being sent to fixed-width columns, 
a default null value was being sent to cfitsio even when user did not
request it.  
   More importantly, the removal of m_nullValue allows the 
Column::addNullValue to work when null value argument requires
casting to match Column type.  Also added new function 
Column::getNullValue.  (08/09)
   Column.h
   ColumnT.h
   ColumnData.h
   ColumnVectorData.cxx, .h
- Added public get functions column() and numCols() to ExtHDU, which
were previously only available in the Table subclass. (08/09)
   ExtHDU.cxx, .h
   Table.h
- Added optional flag to the ExtHDU and Table Column get-by-name
functions, which allows for a case-insensitive search.  This required
renaming the protected column(string,Column*) function to setColumn.
(08/09)
   AsciiTable.cxx
   BinTable.cxx
   ExtHDU.cxx, .h
   FITSUtil.cxx
   Table.cxx, .h   
- Converted all vector and valarray iterator syntax of form &v[v.size()]
to either &v[0]+v.size() or v.end().  It was causing runtime exceptions
on MS Visual C++ v9.0 when element bounds checking was enabled (the
default). (08/09)
   ColumnVectorData.cxx, .h
   ExtHDUT.h
   Image.h
   PHDUT.h
   PrimaryHDU.h
   cookbook.cxx
- Added pkg-config file for the stand-alone distribution.  This also
required slight changes to configure.in and Makefile.am. (08/09)
   CCfits.pc.in
- Removed unused valarray "current" from ColumnVectorData::writeData
  (03/09)
  
Changes for CCfits 2.1
- Modified several FITS constructors and FITS::open function to allow
handling of extended filename syntax. (09/08)
   FITS.cxx, .h
- FITS::resetPosition fix: it now erases the currentExtensionName 
string. (09/08)
- Bug fix to FITS::read for case of missing EXTVER keyword when
searching for HDU with extver > 1. (08/08)
- Column.cxx now includes "fitsio.h" rather than "fitsio2.h" to get
definitions of LONGLONG_MIN and MAX.  This now makes CCfits dependent
on cfitsio versions 3.08 or later. (07/08)

Changes for CCfits 2.0 release 02/08
- The scale and zero set functions (public in HDU) will now write
or update the keywords rather than call fits_set_bscale.  They also
now check for allowed image data type changes as a result of changing
the bscale and bzero values.  Added private zeroInit/scaleInit functions
for use in HDUCreator.  Also added new public function, 
HDU::suppressScaling. (01/08)
   ImageExt.h
   PHDU.cxx, .h
   HDU.cxx, .h
   HDUCreator.cxx
- Changed access of HDU's bitpix set function from public to private.
This requires that HDUCreator be a friend class of HDU. (01/08)
   HDU.h
- Removed the redundant non-const version of FITS::filePointer and made
the const version public instead of private.  It also no longer returns
by reference.  (01/08)
   FITS.h, .cxx
- Reorganized ImageExt<T> constructor/assignment visibility and added 
virtual declaration to destructor.  Also added docs.
   ImageExt.h
- Added #include statements for <cstring> and <iterator> to allow
compilation on g++ 4.3 (patch submitted by Aurelien Jarno) (01/08)
   ExtHDU.cxx
   FITS.cxx
   ColumnData.h
   FITSUtil.cxx
   HDU.cxx
- Added the function getRowsize to the Table class, a wrapper for
fits_get_rowsize. (Patrik Jonsson)
   Table.cxx, .h
   ExtHDU.cxx, .h
- Made the const version of the Column parent accessor function public,
and removed the non-const version.
   Column.h
- Reorganized and improved keyword modification functions in HDU and
Keyword classes.  This includes new HDU addKey, copyAllKeys, and
keywordCategories functions, and the removal of HDU::setKeyWord.  
Also fully implemented the Keyword value set function, with template
specialization similar to the value get function, and added doc
descriptions for both of these. (01/08)
   HDU.cxx, .h
   Keyword.cxx, .h
   KeywordT.h
   KeyData.cxx, .h
- Bug fix to 2 of the 3 constructors which call the create() function.
If create() returns false, they need to throw a CantCreate exception.
They were appending the new primary hdu as an extension to the 
pre-existing file. (01/08)
   FITS.cxx, .h
- To eliminate unnecessary dependences upon CFITSIO internals, removed
the FITSUtil::copyFitsPtr function and everything using it: FITS copy
ctor and clone functions, FITSBase copy ctor and clone functions.  (Note
that copyFitsPtr was never properly impelemented in its attempt to
perform a deep copy of a fitsfile pointer.) (12/07)
   FITS.cxx, .h
   FITSBase.cxx, .h
   FITSUtil.cxx, .h
- Added 4 new functions to HDU class to provide an interface to
CFITSIO's checksum capabilities. (12/07)
   HDU.cxx, .h
- Error messages are now stored in the FitsException base class, which
allows them to be retrieved and copied with the public function 
message(). (12/07)
   FitsError.cxx, .h
   Column.cxx,
   ExtHDU.cxx,
   FITS.cxx
   FITSUtil.cxx
   HDU.cxx
   Keyword.cxx
   Table.cxx
- For Column write functions (both scalar and vector), all cases where
the nulval pointer = 0 were treated as (*nulval) = 0 in the lower-level
calls to fits_write_colnull.  This effectively meant there was no way
for the user to turn off null value checking.  (12/07)
   ColumnT.h
   ColumnData.h
   ColumnVectorData.h
- Calling FITS constructor in Write mode on a read-only file was
causing a segmentation fault. (12/07)
   FITS.cxx

Changes for CCfits 1.8 release 10/07
- Redid the writeData functions (and their private helper functions)
in ColumnVectorData.  This allows the writing of variable length
column arrays, which hadn't been working, and now allows writing a 
partial section of a fixed length column without overwriting the
entire row.
   ColumnVectorData.cxx, .h
- In HDU::readAllKeys, do not throw if unable to read a particular
individual keyword.  Instead, skip and move to the next keyword.  This
will allow this function to be used even if there undefined keywords.
   HDU.cxx

Changes for CCfits 1.7 release 06/07
- FITS::copy function now creates a corresponding object for the
newly created HDU.  Previously it only modified the file without 
updating or adding to the FITS extension map. (6/07)
   FITS.cxx
- Bug fix for reading in compressed images.  It had been using the
BITPIX and NAXIS keywords when it should have ben using ZBITPIX and
ZNAXIS.  These changes were based on a patch submitted by Patrik
Jonsson.
   HDU.cxx
   HDUCreator.cxx
- BSCALE was being ingored if the BZERO keyword didn't also exist.
   HDUCreator.cxx.
- Same type of bug fix as below, but for addNullValue in ColumnT.h and
  ColumnVectorData::setDimen(). (3/07)
   ColumnT.h
   ColumnVectorData.h
- Bug fix to Column::setLimits.  It had been assigning char pointers
from temporary string objects using c_str().  (Fix submitted by Jeremy
Sanders) (2/07)
   Column.cxx

Changes for CCfits 1.6 release 11/06
- Added capbility to write compressed images, including 6 new wrapper
public functions in FITS class.
   FITS.cxx,.h
   FITSUtil.cxx,.h
   PHDU.cxx
   FITSBase.cxx,.h
- In FITS::addImage, corrected the logic which checks for a pre-existing
image extension with the same version number.
   FITS.cxx
- CFITSIO 3.02 renamed fitsfile struct member rice_nbits to noise_nbits.
Made corresponding change in copyFitsPtr function in FITSUtil.cxx.  As it
stands, this makes this version of CCfits incompatible with earlier
versions of CFITSIO
   FITSUtil.cxx
- In FITS.h definition, removed both friend declarations of HDUCreator
Make functions.  It seems neither function needs to be a friend, and one
of them is actually private.  The standard is vague about this, and anyway 
some compilers (Visual C++ 2002 or 2003) don't allow it.  
   FITS.h
- Bug fix in Make function of HDUCreator.cxx.  When creating a new
ImageExt (and not the primary), it was only passing the version number
along for float and double types.  This causes problems when there is
more than 1 image extension with the same name, and it needs the version
number to distinguish them.
   HDUCreator.cxx
- A couple of bug fixes to the first/last/stride version of PHDU read
image subset.  It was not passing the proper parameters to 
fits_read_subset, and was not always correctly resizing the m_image array.
   Image.h

Changes for CCfits 1.5 release 7/06 
- More thorough fix to PHDUT.h write function:  Now genuinely handles
the stride vector parameter. (4/06)
   Image.h
   PHDUT.h
   PrimaryHDU.h

-In BinTable::addColumn function for case of strings, it was outputing
the column format incorrectly as "A<nChar>".  Should have been
"<nChar>A".

- In BinTable and Table constructor, now checks for columnUnits vector 
size rather than assume it's filled in.  This is necessary if units are
to be an optional parameter for the FITS::addTable function, as claimed 
in the docs.
   Table.cxx
   BinTable.cxx

- Modifications needed to fix compile errors on certain platforms with
g++ 4.0.x.  These are functions that haven't been instantiated, which is
why other compilers didn't complain about them.  In ExtHDUT.h read 
function, needed explicit cast to size_t to make both variables in
std::min call the same type.  Same fix made in PHDUT.h read function.
Also in PHDUT.h write function, several calls to PrimaryHDU::writeImage
had the wrong number of arguments. (01/06)

Changes for CCfits 1.4 release 11/05
- Fixed reading in of BSCALE and BZERO.  Previously these keyword
values were not being saved in getScaling function.
   HDUCreator::getScaling (10/05)

- Now reads in all floating-point keyword values as doubles rather
than floats.  In conjunction, needed to allow Keyword casting from
doubles to floats to keep things backward compatible
   KeywordCreator.cxx, KeywordT.h, Keyword.cxx, .h. (8/05)

- In ColumnT.h read function which takes row as a parameter, test and
throw for case of row out-of-bounds of table.

- Memory leak fix in HDU.cxx.  Everywhere insertions into m_keyWord
map were taking place, needed to check for previously existing entry
with same key name and delete if it existed.  FITS::read often does 
insertions twice with the same Keyword, which was causing a memory leak.
Also fixed a couple minor leaks in HDU::writeDate.
(C. Gordon 6/05)

- Exception safety / mem leak fix in FITS.cxx and FITSBase.cxx.  
All FITS constructors (except copy c-tor) now use auto_ptr when creating 
FITSBase* m_FITSImpl.  Also FITSBase destructor now checks if it needs
to close file, indicated by non-zero m_fptr.  To make this work,
FITS::close now resets fptr to 0 after it closes file.


- Add another case of allowed casting of keyword values, this time
from strings to int/float/double if the string contains an integer value
   KeywordT.h (C.Gordon 5/05)

Changes for CCfits 1.3 release 4/05

- modify KeywordCreator getKeyword functions to allow reading of 
keyword value string long format. (C. Gordon)

- Fixed HDUCreator::Make and ExtHDU constructor so that extensions
with no names are now properly handled on input. (C. Gordon)

- Added ability to ready in column data of type LONGLONG from binary tables.

- (Important) Added implicit casting of keyword values entered as ints to
keywords of type float and double.  Previously, the entered key value had
to be of exactly the same type as the keyword, otherwise an exception was
thrown.

Changes for CCfits 1.2 release  4/03

a) add configuration support for building on Windows 2000

b) check for build problems on Mac OS X Darwin (6.4)

c) fix problem with vector column row counts (ColumnVectorData::resizeDataObject)

d) remove error in HDU keyword strings (HDU::readHDUInfo)

e) remove "one off" error in image writing (Image::writeImage)

f) fix write problem for Column TUNIT keyword  (AsciiTable::addColumn, BinTable::addColumn)
        (P. Jonsson)

g) fix image subset writing code in ExtHDU (P. Jonsson) (ExtHDU::write)



Changes for CCfits 1.1.1 release 9/19/02; originator of problem report shown in parentheses
where relevant. 

a) modify most general FITS ctor so that the version argument works properly as a defaulted
parameter (J. Miller)

b) add flush() method to FITS class to force cfitsio buffers to be flushed to disk on 
request (C. Berst)

c) add instructions to flush buffers after image write operation (C. Berst)

d) fix persistent warning about creating new files (C. Berst)

e) remove trailing blanks from read string keywords (P. Jonsson)

f) add new override function addKey for string literals 

g) check compilation and correct operation on gcc 3.2 / Linux 2.4 kernel



Changes in preparation for CCfits 1.1 release


1a) fixed  #include <CCfits>  in cookbook.cxx (code originally designed to include installed library)

b) added variable of type double to pass to pow in cookbook.cxx [R. Mathar, P. Jonsson]

b) removed numerous break statements from switch / case statements where unreachable 
[code returns before end of case] - producing compiler warnings

c) removed numerous instances of signed/unsigned comparisons to remove compiler warnings

d) fixed FITS file copying constructor to produce valid primary  [ R. Mathar ] 

e) fixed incorrect shift operator usage in Column::getType [R. Mathar]

f) fixed incorrect type for TDOUBLE argument in Column::getType [R. Mathar]

g) removed exception specifications throughout except for throw() ( style revision ) 

h) add null terminator for TFORM keywords for case where no <sstream> header present [R. Mathar]

i) fix error in iterator type in HDU::readKeys [R. Mathar]

j) added support for unsigned integer-type images [J. Barnes]

k)  fixed problem with copying Table data likely to lead to memory access violations [C. Gordon]

l) removed potentially conflicting colType argument from table creation call  (FITS::addTable).
   The type of the column is now determined from the TFORM keyword.


m) support for unsigned table column data [R. Mathar]

n) reimplemented HDU::readAllKeys so that it does not use HDU::addKey [R. Mathar]

o) added various missing makeThisCurrent() calls to ensure FITS pointer addresses the correct
HDU [P. Jonsson]

p) added code to cookbook program to read Primary HDU user keywords.

q) added code to resolve data types into strings for keyword output.

r) fixed problem whereby new image extensions were not written to disk FITS file [P. Jonsson]

s) fixed various issues switching between HDUs during writes.

t) added support for complex keywords

u) reworked Column templates to avoid throwing exceptions where implicit datatype conversion
is called for.

v) added many overloaded functions to support complex data I/O. Implicit conversion
between float & double complex data is allowed. Other attempted conversion throw exceptions.

w) modify HDU::scale(double value), HDU::zero(double value) &c. for Columns to call fits_set_bscale
   etc, to change automatic scalings.


2a) configuration support for HP-UX /gcc-2.95.2. Compilation now includes -ansi flag. [R. Mathar]

b) configuration support for AIX/kcc. explicit Makefile.kcc added to distribution [P. Jonsson]

c) added verbose warning message flags for Solaris (+w -verbose=template)