changelog

A C++ class library for scientific computing

	original MemoryBlockReference rather than data_ pointer of
	MemoryBlock itself when constructing a new MemoryBlockReference
	from an old one or changing the MemoryBlock that it refers to.
	The MemoryBlock data_ pointer points to the beginning of the
	usable portion of the allocated memory block, whereas the data_
	pointer for a MemoryBlockReference points to the zeroth element of
	the Array allocated in this MemoryBlock.  Note that the zeroth
	element may not be within the valid range of the Array and the
	MemoryBlockReference data_ pointer may point to an address outside
	of the memory block.  I've given the offset parameter for the
	changeBlock method a default value of zero.  Any offset value
	given will indicate an offset in memory between the zeroth element
	of the original Array and the modified or new Array.  Normally, we
	can just accept the default offset value of zero and then adjust
	the position of the Array data_ pointer afterwards if needed.
2004-08-24  Julian Cummings  <[e-mail]>

	* blitz/array/methods.cc: Commented out an unnecessary line of
	code in Array::reference() method.

	* blitz/array/slicing.cc: Modified slice() method to flip the
	ascendingFlag inside the Array storage if slicing with a backwards
	Range.  Factored expression for computing offset of data_ pointer.
	Corrected sign error in adjustment of zeroOffset_ value.  It
	should move in the same direction as the data_ pointer.
2004-07-28  Theodore Papadopoulo <[e-mail]>

    * blitz/array-impl.h: Made the return type of operator()(XXX) const
    be const references instead of values. Added constant case for
    multicomponent_traits.

2004-06-23  Julian Cummings  <[e-mail]>

	* m4/ac_fortran_flags_preset.m4: Tuned up some of the optimization
	flags and cleaned up file formatting.  Allow modified forms of
	compiler name for KCC, SGI and IBM compilers, so we can use
	special scripts to invoke these compilers (e.g., mpxlC or newKCC).

	* m4/ac_cxx_flags_preset.m4: Tuned up some of the optimization
	flags and cleaned up file formatting.  Allow modified forms of
	compiler name for KCC, SGI and IBM compilers, so we can use
	special scripts to invoke these compilers (e.g., mpxlC or newKCC).

	* m4/ac_compilers_64bits.m4: Added special 64-bit flags for the
	archiver and loader as needed.  Allow modified forms of compiler
	name for KCC, SGI and IBM compilers, so we can use special scripts
	to invoke these compilers (e.g., mpxlC or newKCC).

	* configure.in: Moved test for 64-bit option ahead of libtool
	configuration, so that libtool will pick up the proper 64-bit
	flags for the archiver tool, if requested.

2004-06-18  Julian Cummings  <[e-mail]>

	* testsuite/iter.cpp: Added testing of standard iterator interface
	for blitz Array iterator types and run a couple of STL algorithms
	using Array iterators if BZ_HAVE_STL is defined.
	* blitz/array-impl.h: Eliminated the use of the _bz_endTag struct
	to request an end iterator for an Array.  Just use the default
	iterator constructor to do this.
	* blitz/array/iter.h: Modified behavior of ArrayIterator and
	ConstArrayIterator to be more STL compliant.  Specifically, the
	postfix operator++ now returns a const reference to the iterator
	object as it was before the increment.  Users should expect the
	postfix operator++ to be slower than prefix operator++ and code
	accordingly.  If BZ_HAVE_STL is defined, we provide
	specializations of the struct std::iterator_traits<> to provide
	the standard interface for the Array iterator types.

	* INSTALL: Updated to describe present configuration procedure
	using standardized autoconf configure script.  Added note on
	running autoreconf when obtaining blitz from the cvs repository.
	* README: Added information about the new Blitz++ website hosted
	by SourceForge.  Updated the listing and explanation of the
	directory structure.

2004-06-15  Julian Cummings  <[e-mail]>

	* blitz/array/reduce.h: Added new private method computeOrdering()
	to class _bz_ArrayExprReduce that properly computes the ordering
	values for each dimension of the reduction expression and stores
	them in a data member.  The computeOrdering() method checks that
	ordering values from the expression to be reduced are not invalid
	and are unique.  This is similar to a patch submitted by Derrick
	Bass for the code that constructs an Array from a _bz_ArrayExpr.
	I have also eliminated the use of "rank" as a local variable name
	to avoid possible confusion with the _bz_ArrayExprReduce enum of
	the same name.

2004-06-04  Julian Cummings  <[e-mail]>

	* blitz/array/stencilops.h: Added missing typename keyword.
	* blitz/array/stencils.h: Added blitz:: qualifier to use of
	TinyVector type.

2004-05-06  Theodore Papadopoulo <[e-mail]>

    * configure.in: Do not execute the AC_FC_FREEFORM and AC_FC_SRCEXT
    macros if no fortran 90 compiler was found.

    * benchmarks/Makefile.am: search source files in $(srcdir) for
    compilation speed tests.

2004-05-05  Julian Cummings  <[e-mail]>

	* lib/Makefile.am: Restored -I$(top_builddir) flag needed to find
	generated config.h file when building in a separate directory.
	* testsuite/Makefile.am: Restored -I$(top_builddir) flag needed to
	find generated config.h file when building in a separate
	directory.
	* examples/Makefile.am: Restored -I$(top_builddir) flag needed to
	find generated config.h file when building in a separate
	directory.
	* benchmarks/Makefile.am: Restored -I$(top_builddir) flag needed
	to find generated config.h file when building in a separate
	directory.
	* doc/examples/Makefile.am: Restored -I$(top_builddir) flag needed
	to find generated config.h file when building in a separate
	directory.
	* doc/stencils/Makefile.am: Restored -I$(top_builddir) flag needed
	to find generated config.h file when building in a separate
	directory.  Also fixed problem with building dump-stencil
	executable in wrong directory.  I did this by explicitly creating
	dump-stencil in the current (build) directory.
	* manual/examples/Makefile.am: Restored -I$(top_builddir) flag
	needed to find generated config.h file when building in a separate
	directory.
	* manual/stencils/Makefile.am: Restored -I$(top_builddir) flag
	needed to find generated config.h file when building in a separate
	directory.

	* benchmarks/Makefile.am: Moved -I flags from AM_CXXFLAGS to
	AM_CPPFLAGS.  Cleaned up LIBS list.
	* examples/Makefile.am: Moved -I flags from AM_CXXFLAGS to
	AM_CPPFLAGS.
	* testsuite/Makefile.am: Moved -I flags from AM_CXXFLAGS to
	AM_CPPFLAGS.
	* doc/stencils/Makefile.am: Moved -I flags from AM_CXXFLAGS to
	AM_CPPFLAGS. Removed use of deprecated INCLUDES variable.
	* doc/examples/Makefile.am: Moved -I flags from AM_CXXFLAGS to
	AM_CPPFLAGS.
	* manual/examples/debug.cpp: Restored indexing bug, which is
	apparently there for illustrative purposes.
	* doc/examples/debug.cpp: Restored indexing bug, which is
	apparently there for illustrative purposes.
	* doc/examples/debug.cpp: Fixed indexing bug.
	* doc/examples/cast.cpp: Cosmetic change.
	* manual/stencils/Makefile.am: Moved -I flags from AM_CXXFLAGS to
	AM_CPPFLAGS.
	* manual/examples/Makefile.am: Activated several example codes
	that had been commented out.  Cleaned up list of extra files.
	Moved -I flags from AM_CXXFLAGS to AM_CPPFLAGS.
	* manual/examples/debug.cpp: Fixed indexing bug in this example,
	just so it will run without crashing.  Not sure what this code is
	supposed to illustrate.
	* manual/examples/cast.cpp: Corrected this example code to use
	new-style blitz cast syntax.
	* lib/Makefile.am: Moved -I flags from AM_CXXFLAGS to AM_CPPFLAGS.
	* Makefile.am: Removed src from list of SUBDIRS because there is
	nothing to do there.
	* configure.in: Replaced deprecated AC_LANG_CXX and AC_LANG_F77
	with calls to AC_LANG.  Reordered AC_LANG calls so we don't need
	to call AC_LANG_CXX twice.  Removed some superfluous m4 macro
	argument quoting.  Removed compiler and src subdirectories from
	list of directories to configure.  The compiler area is obsolete
	now that autoconf does this work for us.  We don't need to visit
	the src directory, since the blitz library is built from the lib
	directory.

2004-04-25  Patrick Guio <[e-mail]>

	* m4/ac_cxx_flags_preset.m4: Fixed initialisation and test of ac_cxx_flags_preset variable.

2004-04-17  Patrick Guio <[e-mail]>

	* m4/ax_dirname.m4 m4/ax_create_pkgconfig_info.m4: New files. Macros to generate
	necessary files to use in conjunction with pkg-config tool (see
	http://www.freedesktop.org/Software/pkgconfig).  Files copied from 
	http://ac-archive.sourceforge.net.
	* m4/ac_cxx_lib_blitz.m4: New file. Macro to check whether Blitz is installed on the
	system. Useful when writing configure file for package using Blitz.
	* configure.in Makefile.am: Added support for generating .pc files to use in conjunction 
	with pkg-config. 

2004-04-09  Julian Cummings  <[e-mail]>

	* benchmarks/Makefile.am: Added AM_CXXFLAGS to compile command for
	compile-time benchmarks.

	* configure.in: Reordered lists of C++ and Fortran compilers we
	search for to avoid common conflicts on systems that might have
	more than one compiler set installed.

	* m4/ac_cxx_flags_preset.m4: Minor formatting change.
	* m4/ac_cxx_flags_preset.m4: Changed use of "match" operator
	within expr commands to more standard ":" operator, since "match"
	is not recognized by the implementation of expr on Darwin systems.
	* lib/Makefile.am: Removed CXXFLAGS from AM_CXXFLAGS, since this
	gets added separately to the compile command already.
	* testsuite/Makefile.am: Removed CXXFLAGS from AM_CXXFLAGS, since
	this gets added separately to the compile command already.
	* examples/Makefile.am: Removed CXXFLAGS from AM_CXXFLAGS, since
	this gets added separately to the compile command already.
	* benchmarks/Makefile.am: Removed CXXFLAGS from AM_CXXFLAGS, since
	this gets added separately to the compile command already.
	* doc/examples/Makefile.am: Removed CXXFLAGS from AM_CXXFLAGS,
	since this gets added separately to the compile command already.
	* doc/stencils/Makefile.am: Use AM_CXXFLAGS macro for -I flags
	rather than deprecated INCLUDES macro.

2004-04-07  Julian Cummings  <[e-mail]>

	* blitz/Makefile.am: Removed new-config.h from list of
	blitz_HEADERS.

	* blitz/compiler.h: Changed <blitz/new-config.h> back to
	<blitz/config.h>.

	* Makefile.am: Removed compiler from list of SUBDIRS and deleted
	the check-compiler target.  This work is now done by autoconf and
	the configure script, so we don't need to do it again.

	* configure.in: Bumped AC_PREREQ value to 2.59.  Changed
	blitz/new-config.h back to standard name blitz/config.h.  This
	will now replace the old file that was generate with the bzconfig
	script.  Added nostdinc to list of automake options to prevent
	automake from adding -I../blitz to set of default include flags.
	This causes problems with Compaq cxx and is unnecessary because
	blitz header files are always included as <blitz/foo.h> anyway.
	* examples/random.cpp: Added workaround for problem with streams
	when using Compaq cxx compiler.  Sending a long double to an
	ostream causes a core dump, so cast to double before sending
	value.

	* examples/rand2.cpp: Added workaround for problem with streams
	when using Compaq cxx compiler.  Sending a long double to an
	ostream causes a core dump, so cast to double before sending
	value.

	* lib/Makefile.am: Corrected setting of include flags.
	* testsuite/Makefile.am: Corrected setting of include flags.
	* examples/Makefile.am: Corrected setting of include flags.
	* benchmarks/Makefile.am: Corrected setting of include flags.
	* doc/examples/Makefile.am: Corrected setting of include flags.
	* doc/stencils/Makefile.am: Corrected setting of include flags.
	* blitz/generate/Makefile.am: Removed incorrect and unneeded
	definition of generatedir.

	* m4/ac_cxx_flags_preset.m4: Modified default flags for Compaq cxx
	compiler to allow use of restrict keyword and simplified the set
	of optimization flags.

2004-03-24  Patrick Guio <[e-mail]>

	* doc/doxygen/Makefile.am doc/doxygen/Doxyfile.in: New files. Handles doxygen
	documentation. Mostly "cut and paste" from tvmet project (tvmet.sourceforge.net).
	* configure.in: Added generation of doc/doxygen/Doxyfile from
	doc/doxygen/Doxyfile.in and doc/doxygen/Makefile.
	* doc/doxygen/blitz.doxygen: Removed. Replaced by doc/doxygen/Doxyfile.


2004-03-22  Patrick Guio <[e-mail]>

	* m4: New directory containing m4 macros files that replace acinclude.m4.
	* m4/ac_check_cxx_features.m4 m4/ac_compilers_64bits.m4 m4/ac_cxx_bool.m4
	m4/ac_cxx_complex_math_in_namespace_std.m4 m4/ac_cxx_const_cast.m4 
	m4/ac_cxx_default_template_parameters.m4 m4/ac_cxx_dynamic_cast.m4 
	m4/ac_cxx_enable_debug.m4 m4/ac_cxx_enable_optimize.m4
	m4/ac_cxx_enum_computations.m4 m4/ac_cxx_enum_computations_with_cast.m4 
	m4/ac_cxx_exceptions.m4 m4/ac_cxx_explicit.m4 
	m4/ac_cxx_explicit_template_function_qualification.m4 m4/ac_cxx_flags_preset.m4 
	m4/ac_cxx_full_specialization_syntax.m4 m4/ac_cxx_function_nontype_parameters.m4
	m4/ac_cxx_general.m4 m4/ac_cxx_have_climits.m4 m4/ac_cxx_have_complex.m4 
	m4/ac_cxx_have_complex_math.m4 m4/ac_cxx_have_ieee_math.m4 
	m4/ac_cxx_have_numeric_limits.m4 m4/ac_cxx_have_rusage.m4 m4/ac_cxx_have_std.m4 
	m4/ac_cxx_have_stl.m4 m4/ac_cxx_have_system_v_math.m4 m4/ac_cxx_have_valarray.m4