1Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. 2Contributed by the Arenaire and Cacao projects, INRIA. 3 4This file is part of the GNU MPFR Library. 5 6The GNU MPFR Library is free software; you can redistribute it and/or modify 7it under the terms of the GNU Lesser General Public License as published by 8the Free Software Foundation; either version 3 of the License, or (at your 9option) any later version. 10 11The GNU MPFR Library is distributed in the hope that it will be useful, but 12WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 14License for more details. 15 16You should have received a copy of the GNU Lesser General Public License 17along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 18http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 1951 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. 20 21############################################################################## 22 23Changes from version 3.0.0 to version 3.0.1: 24- Bug fixes (see <http://www.mpfr.org/mpfr-3.0.0/#fixed> or ChangeLog file). 25 Note: The mpfr_subnormalize implementation up to MPFR 3.0.0 did not change 26 the flags. In particular, it did not follow the generic rule concerning 27 the inexact flag (and no special behavior was specified). The case of the 28 underflow flag was more a lack of specification. 29 30Changes from versions 2.4.* to version 3.0.0: 31- The "boudin aux pommes" release. 32- MPFR 3.0.0 is binary incompatible with previous versions but (almost) 33 API compatible. More precisely the obsolete functions mpfr_random 34 and mpfr_random2 have been removed, the meaning of the return type 35 of the function mpfr_get_f has changed, and the return type of the 36 function mpfr_get_z is now int instead of void. In practice, this 37 should not break any existing code. 38- MPFR is now distributed under the GNU Lesser General Public License 39 version 3 or later (LGPL v3+). 40- Rounding modes GMP_RNDx are now MPFR_RNDx (GMP_RNDx kept for 41 compatibility). 42- A new rounding mode (MPFR_RNDA) is available to round away from zero. 43- The rounding mode type is now mpfr_rnd_t (as in previous versions, 44 both mpfr_rnd_t and mp_rnd_t are accepted, but mp_rnd_t may be 45 removed in the future). 46- The precision type is now mpfr_prec_t (as in previous versions, both 47 mpfr_prec_t and mp_prec_t are accepted, but mp_prec_t may be removed 48 in the future) and it is now signed (it was unsigned in MPFR 2.*, but 49 this was not documented). In practice, this change should not affect 50 existing code that assumed nothing on the precision type. 51- MPFR now has its own exponent type mpfr_exp_t, which is currently 52 the same as GMP's mp_exp_t. 53- Functions mpfr_random and mpfr_random2 have been removed. 54- mpfr_get_f and mpfr_get_z now return a ternary value. 55- mpfr_strtofr now accepts bases from 37 to 62. 56- mpfr_custom_get_mantissa was renamed to mpfr_custom_get_significand 57 (mpfr_custom_get_mantissa is still available via a #define). 58- Functions mpfr_get_si, mpfr_get_ui, mpfr_get_sj, mpfr_get_uj, 59 mpfr_get_z and mpfr_get_z_2exp no longer have cases with undefined 60 behavior; in these cases, the behavior is now specified, and in 61 particular, the erange flag is set. 62- New functions mpfr_buildopt_tls_p and mpfr_buildopt_decimal_p giving 63 information about options used at MPFR build time. 64- New function mpfr_regular_p. 65- New function mpfr_set_zero. 66- New function mpfr_digamma. 67- New function mpfr_ai (incomplete, experimental). 68- New functions mpfr_set_flt and mpfr_get_flt to convert from/to the 69 float type. 70- New function mpfr_urandom. 71- New function mpfr_set_z_2exp (companion to mpfr_get_z_2exp, which 72 was renamed from mpfr_get_z_exp in previous versions). 73- Speed improvement for large precisions in the trigonometric functions 74 (mpfr_sin, mpfr_cos, mpfr_tan, mpfr_sin_cos): speedup of about 2.5 75 for 10^5 digits, of about 5 for 10^6 digits. 76- Speed improvement for large precisions of the inverse trigonometric 77 functions (arcsin, arccos, arctan): about 2 for 10^3 digits, up to 78 2.7 for 10^6 digits. 79- Some documentation files are installed in $docdir. 80- The detection of a GMP build directory (more precisely, the internal 81 header files of GMP) was previously done separately from the use of 82 the --with-gmp-build configure option. This was not consistent with 83 the documentation and with other parts of the configure script. So, 84 as of MPFR 3.0.0, the internal header files of GMP are now used if 85 and only if the --with-gmp-build configure option is given. 86- The configure script recognizes some extra "long double" formats 87 (double big endian, double little endian, double-double big endian). 88- MPFR manual: added "API Compatibility" section. 89- Test coverage: 97.1% lines of code. 90- Bug fixes. 91 92Changes from versions 2.3.* to version 2.4.0: 93- The "andouillette sauce moutarde" release. 94- MPFR is now a GNU package. 95- Changes in the behavior of mpfr_strtofr and in its documentation 96 concerning particular cases where the code and the documentation 97 did not match; this change is also present in MPFR 2.3.1. 98- Behavior of mpfr_check_range changed: if the value is an inexact 99 infinity, the overflow flag is set (in case it was lost); this 100 change is also present in MPFR 2.3.2. 101- Function mpfr_init_gmp_rand (only defined when building MPFR without 102 the --with-gmp-build configure option) is no longer defined at all. 103 This function was private and not documented, and was used only in 104 the MPFR test suite. User code that calls it is regarded as broken 105 and may fail as a consequence. Running the old test suite against 106 MPFR 2.4.0 may also fail. 107- New functions: 108 * between a MPFR number and a double: mpfr_add_d, mpfr_sub_d, 109 mpfr_d_sub, mpfr_mul_d, mpfr_div_d, mpfr_d_div, 110 * formatted input/output: 111 mpfr_printf, mpfr_fprintf, mpfr_vprintf, mpfr_vfprintf, 112 mpfr_sprintf, mpfr_snprintf, mpfr_vsprintf, mpfr_vsnprintf, 113 mpfr_asprintf, mpfr_vasprintf. 114 * mpfr_sinh_cosh, mpfr_li2, mpfr_modf, mpfr_fmod, mpfr_rec_sqrt. 115- Configure test for TLS support. 116- Get default $CC and $CFLAGS from gmp.h (__GMP_CC / __GMP_CFLAGS, 117 which are available as of GMP 4.2.3). 118- Documented the fact that mpfr_random and mpfr_random2 will be 119 suppressed in the next release, and that the specification of 120 mpfr_eq may change in the next release (for compatibility with 121 the mpf layer of GMP). 122- Test coverage: 96.7% lines of code 123- Bug fixes. 124 125Changes from versions 2.2.* to version 2.3.0: 126- The mpfr.info file is now installed in the share subdirectory 127 (as required by the Filesystem Hierarchy Standard); see output 128 of "./configure --help". 129- The shared library is now enabled by default. If the MPFR build 130 fails on your platform, try the --disable-shared configure option 131 to disable the shared library. 132- Thread-safe support with Microsoft Visual compiler. 133- New functions mpfr_j0, mpfr_j1, mpfr_jn, mpfr_y0, mpfr_y1, mpfr_yn, 134 mpfr_lgamma, mpfr_remainder, mpfr_remquo, mpfr_fms, mpfr_signbit, 135 mpfr_setsign, mpfr_copysign, mpfr_get_patches. 136- Functions mpfr_sin, mpfr_cos and mpfr_sin_cos improved (argument 137 reduction). 138- More detailed MPFR manual. 139- Improved tests (make check). 140- Bug fixes. 141 142Changes from versions 2.1.* to version 2.2.0: 143- Bug fixes. 144- new functions mpfr_set_overflow, mpfr_set_underflow, mpfr_set_inexflag, 145 mpfr_set_erangeflag, mpfr_set_nanflag, mpfr_erfc, mpfr_atan2, mpfr_pow_z, 146 mpfr_subnormalize, mpfr_const_catalan, mpfr_sec, mpfr_csc, mpfr_cot, 147 mpfr_root, mpfr_eint, mpfr_get_f, mpfr_sech, mpfr_csch, mpfr_coth, 148 mpfr_lngamma. 149- new macro: MPFR_VERSION_STRING 150- Remove the exported MPFR variables from mpfr.h to mpfr-impl.h. 151 (They were undocumented, so programs which respect the API still work). 152- Grep CC and CFLAGS from GMP Makefile if possible. 153- Math functions are faster (both average and worst cases). 154- Better support for long double. 155- Shared library of MPFR. 156- Binary compatible with previous versions if you do not use undocumented 157 features. 158- Thread safe (if built with --enable-thread-safe). 159- Logging facility. 160- Change in the semantics of mpfr_out_str/mpfr_get_str when n_digits=0. 161- Better locale support. 162 163Changes from version 2.1.0 to version 2.1.1: 164- Better way to detect the GMP library. 165- Bug fixes. 166 167Changes from version 2.0.3 to version 2.1.0: 168- Bug fixes. 169- new functions mpfr_strtofr, mpfr_set_uj, mpfr_set_sj, mpfr_set_ui_2exp, 170 mpfr_set_si_2exp, mpfr_set_sj_2exp, mpfr_set_uj_2exp, mpfr_get_uj, 171 mpfr_get_sj, mpfr_get_z, mpfr_free_str, mpfr_si_sub, mpfr_sub_si, 172 mpfr_mul_si, mpfr_si_div, mpfr_div_si, mpfr_sqr, mpfr_cmp_z, mpfr_cmp_q, 173 mpfr_zero_p, mpfr_free_cache, mpfr_sum, mpfr_get_version, 174 mpfr_get_default_rounding_mode, mpfr_get_emin_min, mpfr_get_emin_max, 175 mpfr_get_emax_min, mpfr_get_emax_max, mpfr_inits, mpfr_inits2, mpfr_clears, 176 mpfr_fits_intmax_p, mpfr_fits_uintmax_p, mpfr_clear_erangeflag, 177 mpfr_erangeflag_p, mpfr_rint_round, mpfr_rint_trunc, mpfr_rint_ceil, 178 mpfr_rint_floor. 179- new macros MPFR_DECL_INIT, MPFR_VERSION, MPFR_VERSION_NUM, 180 MPFR_VERSION_MAJOR, MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL. 181- improved documentation. 182- improved configure. 183- improved portability (library and test suite). 184- It handles correctly non IEEE-754 double. 185- GMP internal files are not needed to install MPFR. 186- It is faster with low-precision floating point. 187- New global flag: ERANGE_FLAG. 188- Binary incompatible with previous versions, but API compatible. 189- mpfr_set_str doesn't allow anymore "@NAN@garbagechar" and "@INF@garbagechar", 190 allows base 0 (detection of the base), prefix (0x, 0b), leading whitespace. 191 192Changes from version 2.0.2 to version 2.0.3: 193- Bug fixes. 194- Support GMP as a shared library (not fully tested). 195 196Changes from version 2.0.1 to version 2.0.2: 197- many bug fixes and other improvements. 198- new functions mpfr_prec_round (replaces mpfr_round_prec), mpfr_get_exp, 199 mpfr_set_exp, mpfr_get_ld, mpfr_set_ld, mpfr_get_d_2exp, mpfr_get_si, 200 mpfr_get_ui, mpfr_nextabove, mpfr_nextbelow, mpfr_nexttoward, mpfr_frac, 201 mpfr_fits_*, mpfr_cmp_d, mpfr_cmpabs, mpfr_erf, mpfr_gamma, mpfr_zeta, 202 mpfr_greater_p, mpfr_greaterequal_p, mpfr_less_p, mpfr_lessequal_p, 203 mpfr_lessgreater_p, mpfr_equal_p, mpfr_unordered_p. 204- removed functions: mpfr_print_binary, mpfr_round_prec (replaced by 205 mpfr_prec_round), mpfr_set_str_raw, mpfr_set_machine_rnd_mode. 206- function mpfr_isinteger renamed mpfr_integer_p. 207- return type of some functions changed from void to int, for consistency. 208- return type of mpfr_set_prec changed from int to void. 209- new values for exponent range. 210- rename internal variables. 211 212Changes from version 2001 to version 2.0.1: 213- new mathematical functions: acos, acosh, asin, asinh, atan, atanh, cosh, 214 base-2 exponential and logarithm, base-10 logarithm, expm1, factorial, 215 pow, pow_si, pow_ui, sinh, tan, tanh, ui_pow, ui_pow_ui 216- other new functions: mpfr_const_euler, mpfr_dim, mpfr_fma, mpfr_hypot, 217 mpfr_min, mpfr_max, mpfr_rint, mpfr_set_inf, mpfr_set_nan 218- new operations with MPZ or MPQ: mpfr_{add,sub,mul,div}_[zq] 219- new predicates: mpfr_inf_p, mpfr_nan_p, mpfr_number_p, mpfr_isinteger, 220- add mechanism to set/check exponent range (overflow, underflow), partially 221 implemented in the mpfr functions. 222- efficiency: mpfr_div is now faster when the divisor has a few limbs 223- rounding: now mpfr_pow implements exact rounding, and most functions return a 224 ternary value indicating the position of the returned value wrt the exact one 225 (thus the return value is now 'int' instead of 'void') 226- complete rewrite of the configuration files 227- mpfr_get_d, mpfr_{add,sub}_one_ulp now get a rounding mode as 2nd argument 228- some function names did change: mpz_set_fr is now mpfr_get_z_exp, 229 mpfr_print_raw is now mpfr_print_binary. 230 231Changes from version 1.0 to version 2001: 232- the default installation does not provide any more access to machine 233 rounding mode, and as a consequence does not compare MPFR results with 234 precision=53 to machine results. Add option -DTEST if you want to have 235 access to machine rounding mode, and to check MPFR results against. 236- the MPFR files do not need <math.h> any more 237- the header file <mpfr.h> was split into <mpfr.h> for exported functions 238 and <mpfr-impl.h> for internal functions. The user should not use functions 239 or macros from <mpfr-impl.h>, since those may change in further releases. 240- <mpfr.h> was modified in order to make easy a C++ interface 241- MPFR now deals with infinities (+infinity and -infinity) and NaN 242- the missing function mpfr_swap is now available 243- mpfr_zeta was removed (was incomplete) 244- mpfr_init and mpfr_init2 now initialize the corresponding variable to 0 245 (like in other initialization functions from GNU MP) 246- in case memory allocation fails, an error message is output 247- several bugs of version 1.0 were fixed 248 249Changes from version 0.4 to version 1.0: 250 251- Version 1.0 now uses a standard configure/make installation. 252- Version 1.0 implements all functions that are available in the MPF class 253 from GMP 3.1 (except mpf_swap) and a header file mpf2mpfr.h is included in 254 the distribution for easy change from MPF to MPFR. 255- Version 1.0 implements new elementary functions: mpfr_sincos 256- Some functions and macros have been renamed: mpfr_log2 is now 257 mpfr_const_log2, mpfr_pi is now mpfr_const_pi, SIGN is now MPFR_SIGN. 258- Version 1.0 uses faster algorithms for mpfr_exp, mpfr_const_pi, 259 mpfr_const_log2. Compare the timings from version 1.0 and version 0.4. 260- Version 1.0 corrects some bugs of version 0.4. 261- The precision of MPFR variables is now named mpfr_prec, which makes it 262 easier to change it, to say unsigned long long. Same for the rounding mode 263 which is called mp_rnd_t. 264 265You'll find other news concerning the GNU MPFR library on the web 266page <http://www.mpfr.org/>. 267