1 2001-11-05, version 1.1.3
2 =========================
7 * Fix a computation error of sin and sinh for small arguments.
8 (Reported by Christopher Kennedy.)
10 * Module ordering works with gcc-3.0 -fuse-cxa-atexit now.
12 * -DNO_ASM works properly on Sparc.
15 2001-07-25, version 1.1.2
17 Implementation changes
18 ----------------------
20 * Minor cleanups and portability issues.
21 (No need to upgrade if you have been happy so far.)
24 2001-05-31, version 1.1.1
25 =========================
27 Implementation changes
28 ----------------------
30 * Minor cleanups for GCC 3.0 and libstdc++-v3.
32 * Fixes several little bugs and portability issues.
35 2000-12-14, version 1.1.0
36 =========================
41 * ISO/IEC 14882 fashion adjustments:
42 Put everything into namespace cln. All fundamental data types still
43 carry their old names. Other non-macro identifiers are now written as
44 cln::foo instead of cl_foo, except where the cl_ comes from a data type
45 (as in cl_I_to_int()). Headers are installed into a separate
46 directory, #include <cln/foo.h> instead of <cl_foo.h>. Applications
47 must be manually ported to the new style. We apologize for the
50 Implementation changes
51 ----------------------
53 * Removed internal copy of mpn subdirectory tree from libgmp-2.0.2.
54 Configuring with --with-gmp now relies on an installed libgmp library
55 version 3 or above. We recommend libgmp-3.1 or newer.
57 * Adjusted several break-even points to make better use of a faster libgmp and
58 better match present-day CPUs.
60 * Fix several errors for architectures with 64-bit wide words.
61 (Others than Alpha, which worked already.)
63 * Fix compilation errors with current GCC-3.0 snapshots.
68 * Added package tools: script cln-config and autoconf macro AC_PATH_CLN
72 2000-01-13, version 1.0.3
73 =========================
79 `cl_I doublefactorial (uintL n)'.
81 Implementation changes
82 ----------------------
84 * Fix several little configuration errors.
86 * Fix some compilation errors with gcc-2.96 prereleases.
89 1999-09-07, version 1.0.2
90 =========================
96 `cl_I numerator (const cl_RA&)'
97 `cl_I denominator (const cl_RA&)'.
98 Suggested by Richard Kreckel and Sylvain Pion.
100 * New function `cl_equal_hashcode' for the classes cl_N, cl_R, cl_RA, cl_I,
101 cl_F, cl_SF, cl_FF, cl_DF, cl_LF.
102 Suggested by Richard Kreckel.
104 Implementation changes
105 ----------------------
107 * Fix an endless loop when either of the functions
108 `cl_boolean rootp (const cl_RA&, uintL, cl_RA*)',
109 `cl_boolean rootp (const cl_RA&, const cl_I&, cl_RA*)'
110 was called with an integer argument. Thanks to Richard Kreckel.
112 * Fix a bug in the addition and subtraction of rational numbers which could
113 cause unnormalized rational numbers like 3/1 to be created.
116 1999-06-09, version 1.0.1
117 =========================
122 * Speed up the functions `logand', `lognand', `logandc2'.
124 Implementation changes
125 ----------------------
127 * Fix compilation errors with gcc-2.7.2, egcs-1.1.2 and gcc-2.95.
129 * Fix compilation errors on HPPA, MIPS, some versions of DEC Alpha, OpenBSD,
130 and SPARC with LiDIA.
132 * Fix compilation errors on Win32. Thanks to Mumit Khan.
135 1999-01-12, version 1.0
136 =======================
141 * New include files, containing I/O functions:
145 <cl_sfloat_io.h> <cl_ffloat_io.h> <cl_dfloat_io.h> <cl_lfloat_io.h>
148 The file <cl_io.h> now contains only I/O functions for characters and
151 * To access the base ring of a univariate polynomial ring, now use
152 `R->basering()' instead of `R->basering'.
154 * Implement `plusp', `max', `min' for the classes cl_F, cl_SF, cl_FF, cl_DF,
157 * Implement `abs' for the class cl_RA.
159 * Replaced `read_number' with specialized functions `read_complex',
160 `read_real', `read_float', `read_rational', `read_integer'.
162 * Replaced the functions
163 `void fprint (cl_ostream stream, int x)'
164 `void fprint (cl_ostream stream, unsigned int x)'
165 `void fprint (cl_ostream stream, long x)'
166 `void fprint (cl_ostream stream, unsigned long x)'
168 `void fprintdecimal (cl_ostream stream, int x)'
169 `void fprintdecimal (cl_ostream stream, unsigned int x)'
170 `void fprintdecimal (cl_ostream stream, long x)'
171 `void fprintdecimal (cl_ostream stream, unsigned long x)'
176 * The function `cl_I xgcd (const cl_I& a, const cl_I& b, cl_I* u, cl_I* v)'
177 now normalizes the resulting u and v to be of minimum absolute value.
178 (Suggested by the LiDIA group.)
180 * The conversion from string to cl_F, cl_R, cl_N now chooses the format of
181 the resulting float depending on the number of significant digits present
184 * Speed up the functions
185 `cl_R operator* (const cl_RA&, const cl_LF&)'
186 `cl_R operator* (const cl_LF&, const cl_RA&)'
187 `cl_R operator/ (const cl_RA&, const cl_LF&)'
188 `cl_LF operator/ (const cl_LF&, const cl_RA&)'
190 Implementation changes
191 ----------------------
193 * Fix for `cl_I ash (const cl_I& x, const cl_I& n)' when |n| is between
195 (Reported by Thomas Papanikolaou.)
197 * Fixed a memory leak in the long-float truncate function.
198 (Reported by Keith Briggs.)
200 * Fixed a memory leak in the modular integer exponentiation.
202 * Reduced the stack space consumption. The default stack size (typically
203 8 MB on Unix) should now be sufficient in order to run all CLN programs.
205 * Portability fixes for m68k platforms.
206 (Reported and fixed by Roman Hodek.)
211 * Restructured the sources. The subpackages
214 - base + integer + rational
215 - base + integer + rational + float
216 - base + integer + rational + float + real
217 - base + integer + rational + float + real + complex
218 - base + integer + modinteger
219 are now self-contained.
221 * The configuration script can be called with option `--enable-shared',
222 to build CLN as a shared library.
224 * Updated the LiDIA interface.
227 1998-05-07, version 0.98
228 ========================
230 Implementation changes
231 ----------------------
233 * Portability fixes for 64-bit platforms like DEC Alpha.
234 (Reported by John Cremona and Thomas Papanikolaou.)
243 * Portability fixes for new ISO/ANSI C++ compilers.
245 * Updated the LiDIA interface for LiDIA version 1.3 and fixed a couple of
252 Implementation changes
253 ----------------------
255 * Portability fix for i686 platforms.
256 (Reported by Michael Pfeifer.)
266 <cl_ring.h>, declaring general rings,
267 <cl_GV.h>, <cl_SV.h>, defining vectors,
268 <cl_univpoly.h>, defining univariate polynomial rings.
273 * Speed up the internal computation of ln(2) and ln(10) by about 20%.
275 * Speed up the computation of exp (for 1000 digits or more) by about 10%.
277 Implementation changes
278 ----------------------
280 * Portability fix for 64-bit platforms like DEC Alpha:
281 Fixed a bug: endless loop in `sqrt' for large precision.
282 (Reported by Blake Jones.)
284 * Portability fix for RS/6000 platforms.
293 * Speed up the computation of the elementary transcendental functions:
294 exp, sinh, cosh, asinh, atanh (for 100 digits) by about 30%,
295 log (for 100 digits) by about 25%,
296 sin, cos (for 1000 or 10000 digits) by about 20%,
297 asin, acos, atan (for 1000 digits) by about 25%.
299 Implementation changes
300 ----------------------
302 * Portability fix for SunOS 4 and other BSD platforms.
311 * Fixed a bug: endless recursion in `cl_boolean sqrtp (const cl_RA&, cl_RA*)'.
313 * Fixed a bug: Only the first 85% of the digits returned by `cl_eulerconst'
314 for moderate precision (< 11370 digits) were correct.
315 (Reported by Thomas Papanikolaou.)
317 Implementation changes
318 ----------------------
320 * Fix static initialization order bug. Requires g++ 2.7.0 or newer
321 (g++ 2.8.0 or newer on HPPA).
323 * New method `debug_print()', for pretty printing of CLN objects, intended
324 to be called from the debugger.
333 * New functions `float cl_float_approx (const cl_R&)',
334 `double cl_double_approx (const cl_R&)'
335 for converting a real number to a C `float' or `double'.
340 * Speed up `cl_zeta' using Cohen-Villegas-Zagier convergence acceleration.
342 Implementation changes
343 ----------------------
345 * New function `cl_print', for pretty printing of CLN objects, intended to be
346 called from the debugger.
348 * Portability fixes for 64-bit platforms like DEC Alpha.
358 <cl_string.h>, defining strings,
359 <cl_symbol.h>, defining symbols,
360 <cl_proplist.h>, defining property lists,
361 <cl_condition.h>, defining conditions/exceptions.
363 * New functions `cl_F cl_catalanconst ()',
364 `cl_F cl_catalanconst (const cl_F&)',
365 `cl_F cl_catalanconst (cl_float_format_t)'
366 which return Catalan's constant.
367 (Suggested by Thomas Papanikolaou.)
369 * New functions `cl_F cl_zeta (int s)',
370 `cl_F cl_zeta (int s, const cl_F&)',
371 `cl_F cl_zeta (int s, cl_float_format_t)'
372 which return the Riemann zeta function at an integral point s>1.
374 * New functions `cl_F cl_exp1 ()',
375 `cl_F cl_exp1 (const cl_F&)',
376 `cl_F cl_exp1 (cl_float_format_t)'
377 which return e = exp(1).
379 * New function `cl_I binomial (uintL n, uintL k)' which returns the
380 binomial coefficient (n choose k).
382 * New functions `int cl_I_to_int (const cl_I&)',
383 `unsigned int cl_I_to_uint (const cl_I&)',
384 `long cl_I_to_long (const cl_I&)',
385 `unsigned long cl_I_to_ulong (const cl_I&)'
386 for converting an integer to a C `int' or `long'.
388 * New functions `float cl_float_approx (const cl_I&)',
389 `float cl_float_approx (const cl_RA&)',
390 `double cl_double_approx (const cl_I&)',
391 `double cl_double_approx (const cl_RA&)'
392 for converting a rational number to a C `float' or `double'.
394 Implementation changes
395 ----------------------
397 * Moved the sources to subdirectories.
398 (Suggested by Jörg Arndt.)
403 * New benchmark for better comparing LiDIA, Pari and CLN.
405 * Added an interface to LiDIA, allows using CLN as a replacement of libI.
406 (Suggested by Thomas Papanikolaou.)
408 * Added an ILOG Talk interface, for interactive use of the library.
417 * New include file <cl_modinteger.h>, defining modular integer rings.
419 * New functions `cl_F cl_eulerconst ()', `cl_F cl_eulerconst (const cl_F&)',
420 `cl_F cl_eulerconst (cl_float_format_t)' which return Euler's constant.
425 * Speed up square root of large numbers by use of Newton's algorithm.
427 * Speed up multiplication and division of large long-floats by small integers.
429 * Speed up the computation of pi, e, exp, log, sin, cos, tan, sinh, cosh, tanh,
430 asin, acos, atan, asinh, acosh, atanh.
431 All of them are now computed with asymptotically fast algorithms, of
432 bit complexity O(log(N)^2*M(N)) = O(N^(1+epsilon)) for N digits.
434 * Fixed several bugs in the transcendental functions routines. In particular,
435 the `log' function went into an endless loop.
437 * Fixed a bug: The cl_I -> cl_DF and cl_I -> cl_LF conversions didn't work
438 correctly for negative integers.
447 * New include file <cl_numtheory.h>, containing number theoretic functions,
448 for now only the Jacobi symbol.
453 * Speed up squaring of large numbers by 30%.
455 * Speed up division of large numbers by use of Newton's algorithm. The
456 improvement is noticeable for numbers with at least about 1000 words =
457 32000 bits = 10000 decimal digits.
459 * Speed up the binary-to-decimal conversion of large numbers by use of
460 a divide-and-conquer method. The improvement is noticeable for numbers
461 of at least 1250 words = 40000 bits = 12000 decimal digits.
463 * Fixed a bug: The functions `cl_boolean minusp (const type&)' and
464 `cl_boolean zerop (const type&)' were missing for type=cl_I and type=cl_RA.
466 * Fixed a bug: The function `cl_boolean logtest (const cl_I&, const cl_I&)'
467 didn't work correctly if both arguments were bignums.
469 * Fixed a bug: The function `cl_I mod (const cl_I&, const cl_I&)', when called
470 as `mod(-n*m,m)' (n>0), returned m instead of 0.
472 * Fixed a bug: The function `uintL power2p (const cl_I&)' returned wrong
473 values for arguments x = 2^n, n >= 29.
475 Implementation changes
476 ----------------------
478 * Speed up CLN by using the low-level addition/subtraction, shift and
479 multiplication loops from GNU gmp-2.0.2.
481 * Fixed a severe reference counting bug in the constructors
482 `type::type (const long)' and `type::type (const unsigned long)'
483 for type=cl_number, type=cl_N, type=cl_RA, type=cl_I that most often
486 * CLN's word sequences can be chosen to be stored big-endian in memory
487 (like it was up to now) or little-endian (needed for interfacing to GMP).
496 * New include file <cl_timing.h>, contains timing facilities.
501 * Speed up the multiplication of large numbers by use of an FFT based
502 algorithm (Schönhage-Strassen). The improvement is noticeable when both
503 factors have at least 1250 words = 40000 bits = 12000 decimal digits.
505 * Speed up the functions `cl_I gcd (const cl_I&, const cl_I&)' and
506 `cl_I xgcd (const cl_I&, const cl_I&, cl_I*, cl_I*)' by a factor
507 of 1.5. Simple trick.
509 * Speed up the function `cl_boolean sqrtp (const cl_I&, cl_I*)' using a
510 trick from Henri Cohen.
512 * Fixed an endless loop in the function `uint32 gcd (uint32, uint32)'
513 which occurred when one of the arguments is zero.
515 * Fixed an endless loop in the function `cl_I factorial (uintL)'.
517 Implementation changes
518 ----------------------
520 * <cl_io.h> now uses iostreams by default instead of stdio FILE pointers.
521 (Reported by Tito Flagella.)
523 * Fixed linking error when compiling without -O.
524 (Reported by Tito Flagella.)
526 * Fixed syntax error in <cl_input.h>.
527 (Reported by Tito Flagella.)
529 * Fixed syntax errors in src/cl_DS.h and src/cl_FF_plus.h.
530 (Reported by Marcus Daniels.)
532 * More portability fixes.
534 * Configuration now supports the --srcdir option.
535 (Reported by Marcus Daniels.)
541 * Compiles well on Sparc, using gcc.
543 * Mail to beta testers.
549 * Compiles well on Linux, using gcc.