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516 lines
14 KiB
516 lines
14 KiB
2000-11-xx, version 1.1.0
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=========================
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Functional changes
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------------------
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* ISO/IEC 14882 fashion adjustments:
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Put everything into namespace cln. All fundamental data types still
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carry their old names. Other non-macro identifiers are now written as
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cln::foo instead of cl_foo, except where the cl_ comes from a data type
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(as in cl_I_to_int()). Headers are installed into a separate
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directory, #include <cln/foo.h> instead of <cl_foo.h>. Applications
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must be manually ported to the new style. We apologize for the
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inconvenience.
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Implementation changes
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----------------------
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* Removed internal copy of mpn subdirectory tree from libgmp-2.0.2.
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Configuring with --with-gmp now relies on an installed libgmp library
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version 3 or above. We recommend libgmp-3.1 or newer.
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* Adjusted several break-even points to make better use of a faster libgmp and
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better match present-day CPUs.
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* Fix several errors for architectures with 64-bit wide words.
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(Others than Alpha.)
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* Fix compilation errors with current GCC-3.0 snapshots.
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Other changes
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-------------
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* Added package tools: script cln-config and autoconf macro AC_PATH_LIBCLN
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(in file cln.m4).
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2000-01-13, version 1.0.3
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=========================
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Functional changes
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------------------
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* New function
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`cl_I doublefactorial (uintL n)'.
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Implementation changes
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----------------------
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* Fix several little configuration errors.
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* Fix some compilation errors with gcc-2.96 prereleases.
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1999-09-07, version 1.0.2
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=========================
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Functional changes
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------------------
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* New functions
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`cl_I numerator (const cl_RA&)'
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`cl_I denominator (const cl_RA&)'.
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Suggested by Richard Kreckel and Sylvain Pion.
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* New function `cl_equal_hashcode' for the classes cl_N, cl_R, cl_RA, cl_I,
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cl_F, cl_SF, cl_FF, cl_DF, cl_LF.
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Suggested by Richard Kreckel.
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Implementation changes
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----------------------
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* Fix an endless loop when either of the functions
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`cl_boolean rootp (const cl_RA&, uintL, cl_RA*)',
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`cl_boolean rootp (const cl_RA&, const cl_I&, cl_RA*)'
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was called with an integer argument. Thanks to Richard Kreckel.
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* Fix a bug in the addition and subtraction of rational numbers which could
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cause unnormalized rational numbers like 3/1 to be created.
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1999-06-09, version 1.0.1
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=========================
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Algorithmic changes
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-------------------
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* Speed up the functions `logand', `lognand', `logandc2'.
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Implementation changes
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----------------------
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* Fix compilation errors with gcc-2.7.2, egcs-1.1.2 and gcc-2.95.
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* Fix compilation errors on HPPA, MIPS, some versions of DEC Alpha, OpenBSD,
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and SPARC with LiDIA.
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* Fix compilation errors on Win32. Thanks to Mumit Khan.
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1999-01-12, version 1.0
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=======================
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Functional changes
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------------------
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* New include files, containing I/O functions:
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<cl_integer_io.h>
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<cl_rational_io.h>
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<cl_float_io.h>
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<cl_sfloat_io.h> <cl_ffloat_io.h> <cl_dfloat_io.h> <cl_lfloat_io.h>
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<cl_real_io.h>
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<cl_complex_io.h>
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The file <cl_io.h> now contains only I/O functions for characters and
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C integers.
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* To access the base ring of a univariate polynomial ring, now use
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`R->basering()' instead of `R->basering'.
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* Implement `plusp', `max', `min' for the classes cl_F, cl_SF, cl_FF, cl_DF,
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cl_LF, cl_RA, cl_I.
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* Implement `abs' for the class cl_RA.
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* Replaced `read_number' with specialized functions `read_complex',
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`read_real', `read_float', `read_rational', `read_integer'.
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* Replaced the functions
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`void fprint (cl_ostream stream, int x)'
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`void fprint (cl_ostream stream, unsigned int x)'
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`void fprint (cl_ostream stream, long x)'
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`void fprint (cl_ostream stream, unsigned long x)'
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with
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`void fprintdecimal (cl_ostream stream, int x)'
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`void fprintdecimal (cl_ostream stream, unsigned int x)'
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`void fprintdecimal (cl_ostream stream, long x)'
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`void fprintdecimal (cl_ostream stream, unsigned long x)'
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Algorithmic changes
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-------------------
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* The function `cl_I xgcd (const cl_I& a, const cl_I& b, cl_I* u, cl_I* v)'
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now normalizes the resulting u and v to be of minimum absolute value.
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(Suggested by the LiDIA group.)
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* The conversion from string to cl_F, cl_R, cl_N now chooses the format of
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the resulting float depending on the number of significant digits present
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in the input string.
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* Speed up the functions
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`cl_R operator* (const cl_RA&, const cl_LF&)'
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`cl_R operator* (const cl_LF&, const cl_RA&)'
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`cl_R operator/ (const cl_RA&, const cl_LF&)'
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`cl_LF operator/ (const cl_LF&, const cl_RA&)'
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Implementation changes
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----------------------
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* Fix for `cl_I ash (const cl_I& x, const cl_I& n)' when |n| is between
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2^29 and 2^37.
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(Reported by Thomas Papanikolaou.)
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* Fixed a memory leak in the long-float truncate function.
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(Reported by Keith Briggs.)
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* Fixed a memory leak in the modular integer exponentiation.
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* Reduced the stack space consumption. The default stack size (typically
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8 MB on Unix) should now be sufficient in order to run all CLN programs.
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* Portability fixes for m68k platforms.
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(Reported and fixed by Roman Hodek.)
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Other changes
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-------------
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* Restructured the sources. The subpackages
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- base
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- base + integer
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- base + integer + rational
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- base + integer + rational + float
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- base + integer + rational + float + real
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- base + integer + rational + float + real + complex
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- base + integer + modinteger
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are now self-contained.
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* The configuration script can be called with option `--enable-shared',
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to build CLN as a shared library.
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* Updated the LiDIA interface.
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1998-05-07, version 0.98
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========================
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Implementation changes
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----------------------
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* Portability fixes for 64-bit platforms like DEC Alpha.
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(Reported by John Cremona and Thomas Papanikolaou.)
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1998-02-27
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==========
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Other changes
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-------------
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* Portability fixes for new ISO/ANSI C++ compilers.
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* Updated the LiDIA interface for LiDIA version 1.3 and fixed a couple of
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bugs.
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1997-09-06
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==========
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Implementation changes
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----------------------
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* Portability fix for i686 platforms.
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(Reported by Michael Pfeifer.)
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1997-09-01
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==========
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Functional changes
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------------------
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* New include files:
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<cl_ring.h>, declaring general rings,
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<cl_GV.h>, <cl_SV.h>, defining vectors,
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<cl_univpoly.h>, defining univariate polynomial rings.
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Algorithmic changes
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-------------------
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* Speed up the internal computation of ln(2) and ln(10) by about 20%.
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* Speed up the computation of exp (for 1000 digits or more) by about 10%.
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Implementation changes
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----------------------
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* Portability fix for 64-bit platforms like DEC Alpha:
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Fixed a bug: endless loop in `sqrt' for large precision.
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(Reported by Blake Jones.)
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* Portability fix for RS/6000 platforms.
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1997-02-21
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==========
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Algorithmic changes
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-------------------
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* Speed up the computation of the elementary transcendental functions:
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exp, sinh, cosh, asinh, atanh (for 100 digits) by about 30%,
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log (for 100 digits) by about 25%,
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sin, cos (for 1000 or 10000 digits) by about 20%,
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asin, acos, atan (for 1000 digits) by about 25%.
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Implementation changes
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----------------------
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* Portability fix for SunOS 4 and other BSD platforms.
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1997-01-31
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==========
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Algorithmic changes
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-------------------
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* Fixed a bug: endless recursion in `cl_boolean sqrtp (const cl_RA&, cl_RA*)'.
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* Fixed a bug: Only the first 85% of the digits returned by `cl_eulerconst'
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for moderate precision (< 11370 digits) were correct.
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(Reported by Thomas Papanikolaou.)
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Implementation changes
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----------------------
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* Fix static initialization order bug. Requires g++ 2.7.0 or newer
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(g++ 2.8.0 or newer on HPPA).
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* New method `debug_print()', for pretty printing of CLN objects, intended
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to be called from the debugger.
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1997-01-07
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==========
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Functional changes
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------------------
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* New functions `float cl_float_approx (const cl_R&)',
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`double cl_double_approx (const cl_R&)'
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for converting a real number to a C `float' or `double'.
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Algorithmic changes
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-------------------
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* Speed up `cl_zeta' using Cohen-Villegas-Zagier convergence acceleration.
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Implementation changes
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----------------------
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* New function `cl_print', for pretty printing of CLN objects, intended to be
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called from the debugger.
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* Portability fixes for 64-bit platforms like DEC Alpha.
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1996-11-29
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==========
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Functional changes
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------------------
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* New include files:
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<cl_string.h>, defining strings,
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<cl_symbol.h>, defining symbols,
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<cl_proplist.h>, defining property lists,
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<cl_condition.h>, defining conditions/exceptions.
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* New functions `cl_F cl_catalanconst ()',
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`cl_F cl_catalanconst (const cl_F&)',
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`cl_F cl_catalanconst (cl_float_format_t)'
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which return Catalan's constant.
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(Suggested by Thomas Papanikolaou.)
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* New functions `cl_F cl_zeta (int s)',
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`cl_F cl_zeta (int s, const cl_F&)',
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`cl_F cl_zeta (int s, cl_float_format_t)'
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which return the Riemann zeta function at an integral point s>1.
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* New functions `cl_F cl_exp1 ()',
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`cl_F cl_exp1 (const cl_F&)',
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`cl_F cl_exp1 (cl_float_format_t)'
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which return e = exp(1).
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* New function `cl_I binomial (uintL n, uintL k)' which returns the
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binomial coefficient (n choose k).
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* New functions `int cl_I_to_int (const cl_I&)',
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`unsigned int cl_I_to_uint (const cl_I&)',
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`long cl_I_to_long (const cl_I&)',
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`unsigned long cl_I_to_ulong (const cl_I&)'
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for converting an integer to a C `int' or `long'.
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* New functions `float cl_float_approx (const cl_I&)',
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`float cl_float_approx (const cl_RA&)',
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`double cl_double_approx (const cl_I&)',
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`double cl_double_approx (const cl_RA&)'
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for converting a rational number to a C `float' or `double'.
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Implementation changes
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----------------------
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* Moved the sources to subdirectories.
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(Suggested by Jörg Arndt.)
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Other changes
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-------------
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* New benchmark for better comparing LiDIA, Pari and CLN.
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* Added an interface to LiDIA, allows using CLN as a replacement of libI.
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(Suggested by Thomas Papanikolaou.)
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* Added an ILOG Talk interface, for interactive use of the library.
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1996-10-13
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==========
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Functional changes
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------------------
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* New include file <cl_modinteger.h>, defining modular integer rings.
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* New functions `cl_F cl_eulerconst ()', `cl_F cl_eulerconst (const cl_F&)',
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`cl_F cl_eulerconst (cl_float_format_t)' which return Euler's constant.
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Algorithmic changes
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-------------------
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* Speed up square root of large numbers by use of Newton's algorithm.
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* Speed up multiplication and division of large long-floats by small integers.
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* Speed up the computation of pi, e, exp, log, sin, cos, tan, sinh, cosh, tanh,
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asin, acos, atan, asinh, acosh, atanh.
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All of them are now computed with asymptotically fast algorithms, of
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bit complexity O(log(N)^2*M(N)) = O(N^(1+epsilon)) for N digits.
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* Fixed several bugs in the transcendental functions routines. In particular,
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the `log' function went into an endless loop.
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* Fixed a bug: The cl_I -> cl_DF and cl_I -> cl_LF conversions didn't work
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correctly for negative integers.
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1996-09-08
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==========
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Functional changes
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------------------
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* New include file <cl_numtheory.h>, containing number theoretic functions,
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for now only the Jacobi symbol.
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Algorithmic changes
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-------------------
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* Speed up squaring of large numbers by 30%.
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* Speed up division of large numbers by use of Newton's algorithm. The
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improvement is noticeable for numbers with at least about 1000 words =
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32000 bits = 10000 decimal digits.
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* Speed up the binary-to-decimal conversion of large numbers by use of
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a divide-and-conquer method. The improvement is noticeable for numbers
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of at least 1250 words = 40000 bits = 12000 decimal digits.
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* Fixed a bug: The functions `cl_boolean minusp (const type&)' and
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`cl_boolean zerop (const type&)' were missing for type=cl_I and type=cl_RA.
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* Fixed a bug: The function `cl_boolean logtest (const cl_I&, const cl_I&)'
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didn't work correctly if both arguments were bignums.
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* Fixed a bug: The function `cl_I mod (const cl_I&, const cl_I&)', when called
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as `mod(-n*m,m)' (n>0), returned m instead of 0.
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* Fixed a bug: The function `uintL power2p (const cl_I&)' returned wrong
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values for arguments x = 2^n, n >= 29.
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Implementation changes
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----------------------
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* Speed up CLN by using the low-level addition/subtraction, shift and
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multiplication loops from GNU gmp-2.0.2.
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* Fixed a severe reference counting bug in the constructors
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`type::type (const long)' and `type::type (const unsigned long)'
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for type=cl_number, type=cl_N, type=cl_RA, type=cl_I that most often
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caused a core dump.
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* CLN's word sequences can be chosen to be stored big-endian in memory
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(like it was up to now) or little-endian (needed for interfacing to GMP).
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1996-05-20
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==========
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Functional changes
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------------------
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* New include file <cl_timing.h>, contains timing facilities.
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Algorithmic changes
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-------------------
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* Speed up the multiplication of large numbers by use of an FFT based
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algorithm (Schönhage-Strassen). The improvement is noticeable when both
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factors have at least 1250 words = 40000 bits = 12000 decimal digits.
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* Speed up the functions `cl_I gcd (const cl_I&, const cl_I&)' and
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`cl_I xgcd (const cl_I&, const cl_I&, cl_I*, cl_I*)' by a factor
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of 1.5. Simple trick.
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* Speed up the function `cl_boolean sqrtp (const cl_I&, cl_I*)' using a
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trick from Henri Cohen.
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* Fixed an endless loop in the function `uint32 gcd (uint32, uint32)'
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which occurred when one of the arguments is zero.
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* Fixed an endless loop in the function `cl_I factorial (uintL)'.
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Implementation changes
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----------------------
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* <cl_io.h> now uses iostreams by default instead of stdio FILE pointers.
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(Reported by Tito Flagella.)
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* Fixed linking error when compiling without -O.
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(Reported by Tito Flagella.)
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* Fixed syntax error in <cl_input.h>.
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(Reported by Tito Flagella.)
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* Fixed syntax errors in src/cl_DS.h and src/cl_FF_plus.h.
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(Reported by Marcus Daniels.)
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* More portability fixes.
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* Configuration now supports the --srcdir option.
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(Reported by Marcus Daniels.)
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1996-01-03
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==========
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* Compiles well on Sparc, using gcc.
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* Mail to beta testers.
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1995-12-06
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==========
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* Compiles well on Linux, using gcc.
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