mpfr-2.4.1/NEWS - native_client/nacl-gcc - Git at Google

 Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
 Contributed by the Arenaire and Cacao projects, INRIA.

 This file is part of the GNU MPFR Library.

 The GNU MPFR Library is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation; either version 2.1 of the License, or (at your
 option) any later version.

 The GNU MPFR Library is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 License for more details.

 You should have received a copy of the GNU Lesser General Public License
 along with the GNU MPFR Library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
 MA 02110-1301, USA.

 ##############################################################################

 Changes from version 2.4.0 to version 2.4.1:
 - Security fix in mpfr_snprintf and mpfr_vsnprintf (buffer overflow).
 - Configure: new checks for length modifiers 'hh' and 'll' (new in C99)
   as 'hh' is absent on alpha-OSF1-V5.
 - Miscellaneous corrections in the MPFR manual. In particular,
   mpfr_inits, mpfr_inits2, mpfr_clears and MPFR_DECL_INIT have been
   in the public API since MPFR 2.4.0.

 Changes from versions 2.3.* to version 2.4.0:
 - The "andouillette sauce moutarde" release.
 - MPFR is now a GNU package.
 - Changes in the behavior of mpfr_strtofr and in its documentation
   concerning particular cases where the code and the documentation
   did not match; this change is also present in MPFR 2.3.1.
 - Behavior of mpfr_check_range changed: if the value is an inexact
   infinity, the overflow flag is set (in case it was lost); this
   change is also present in MPFR 2.3.2.
 - Function mpfr_init_gmp_rand (only defined when building MPFR without
   the --with-gmp-build configure option) is no longer defined at all.
   This function was private and not documented, and was used only in
   the MPFR test suite. User code that calls it is regarded as broken
   and may fail as a consequence. Running the old test suite against
   MPFR 2.4.0 may also fail.
 - New functions:
   * between a MPFR number and a double: mpfr_add_d, mpfr_sub_d,
     mpfr_d_sub, mpfr_mul_d, mpfr_div_d, mpfr_d_div,
   * formatted input/output:
     mpfr_printf, mpfr_fprintf, mpfr_vprintf, mpfr_vfprintf,
     mpfr_sprintf, mpfr_snprintf, mpfr_vsprintf, mpfr_vsnprintf,
     mpfr_asprintf, mpfr_vasprintf.
   * mpfr_sinh_cosh, mpfr_li2, mpfr_modf, mpfr_fmod, mpfr_rec_sqrt.
 - Configure test for TLS support.
 - Get default $CC and $CFLAGS from gmp.h (__GMP_CC / __GMP_CFLAGS,
   which are available as of GMP 4.2.3).
 - Documented the fact that mpfr_random and mpfr_random2 will be
   suppressed in the next release, and that the specification of
   mpfr_eq may change in the next release (for compatibility with
   the mpf layer of GMP).
 - Test coverage: 96.7% lines of code
 - Bug fixes.

 Changes from versions 2.2.* to version 2.3.0:
 - The mpfr.info file is now installed in the share subdirectory
   (as required by the Filesystem Hierarchy Standard); see output
   of "./configure --help".
 - The shared library is now enabled by default. If the MPFR build
   fails on your platform, try the --disable-shared configure option
   to disable the shared library.
 - Thread-safe support with Microsoft Visual compiler.
 - New functions mpfr_j0, mpfr_j1, mpfr_jn, mpfr_y0, mpfr_y1, mpfr_yn,
   mpfr_lgamma, mpfr_remainder, mpfr_remquo, mpfr_fms, mpfr_signbit,
   mpfr_setsign, mpfr_copysign, mpfr_get_patches.
 - Functions mpfr_sin, mpfr_cos and mpfr_sin_cos improved (argument
   reduction).
 - More detailed MPFR manual.
 - Improved tests (make check).
 - Bug fixes.

 Changes from versions 2.1.* to version 2.2.0:
 - Bug fixes.
 - new functions mpfr_set_overflow, mpfr_set_underflow, mpfr_set_inexflag,
   mpfr_set_erangeflag, mpfr_set_nanflag, mpfr_erfc, mpfr_atan2, mpfr_pow_z,
   mpfr_subnormalize, mpfr_const_catalan, mpfr_sec, mpfr_csc, mpfr_cot,
   mpfr_root, mpfr_eint, mpfr_get_f, mpfr_sech, mpfr_csch, mpfr_coth,
   mpfr_lngamma.
 - new macro: MPFR_VERSION_STRING
 - Remove the exported MPFR variables from mpfr.h to mpfr-impl.h.
   (They were undocumented, so programs which respect the API still work).
 - Grep CC and CFLAGS from GMP Makefile if possible.
 - Math functions are faster (both average and worst cases).
 - Better support for long double.
 - Shared library of MPFR.
 - Binary compatible with previous versions if you do not use undocumented
   features.
 - Thread safe (if built with --enable-thread-safe).
 - Logging facility.
 - Change in the semantics of mpfr_out_str/mpfr_get_str when n_digits=0.
 - Better locale support.

 Changes from version 2.1.0 to version 2.1.1:
 - Better way to detect the GMP library.
 - Bug fixes.

 Changes from version 2.0.3 to version 2.1.0:
 - Bug fixes.
 - new functions mpfr_strtofr, mpfr_set_uj, mpfr_set_sj, mpfr_set_ui_2exp,
   mpfr_set_si_2exp, mpfr_set_sj_2exp, mpfr_set_uj_2exp, mpfr_get_uj,
   mpfr_get_sj, mpfr_get_z, mpfr_free_str, mpfr_si_sub, mpfr_sub_si,
   mpfr_mul_si, mpfr_si_div, mpfr_div_si, mpfr_sqr, mpfr_cmp_z, mpfr_cmp_q,
   mpfr_zero_p, mpfr_free_cache, mpfr_sum, mpfr_get_version,
   mpfr_get_default_rounding_mode, mpfr_get_emin_min, mpfr_get_emin_max,
   mpfr_get_emax_min, mpfr_get_emax_max, mpfr_inits, mpfr_inits2, mpfr_clears,
   mpfr_fits_intmax_p, mpfr_fits_uintmax_p, mpfr_clear_erangeflag,
   mpfr_erangeflag_p, mpfr_rint_round, mpfr_rint_trunc, mpfr_rint_ceil,
   mpfr_rint_floor.
 - new macros MPFR_DECL_INIT, MPFR_VERSION, MPFR_VERSION_NUM,
   MPFR_VERSION_MAJOR, MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL.
 - improved documentation.
 - improved configure.
 - improved portability (library and test suite).
 - It handles correctly non IEEE-754 double.
 - GMP internal files are not needed to install MPFR.
 - It is faster with low-precision floating point.
 - New global flag: ERANGE_FLAG.
 - Binary incompatible with previous versions, but API compatible.
 - mpfr_set_str doesn't allow anymore "@NAN@garbagechar" and "@INF@garbagechar",
   allows base 0 (detection of the base), prefix (0x, 0b), leading whitespace.

 Changes from version 2.0.2 to version 2.0.3:
 - Bug fixes.
 - Support GMP as a shared library (not fully tested).

 Changes from version 2.0.1 to version 2.0.2:
 - many bug fixes and other improvements.
 - new functions mpfr_prec_round (replaces mpfr_round_prec), mpfr_get_exp,
   mpfr_set_exp, mpfr_get_ld, mpfr_set_ld, mpfr_get_d_2exp, mpfr_get_si,
   mpfr_get_ui, mpfr_nextabove, mpfr_nextbelow, mpfr_nexttoward, mpfr_frac,
   mpfr_fits_*, mpfr_cmp_d, mpfr_cmpabs, mpfr_erf, mpfr_gamma, mpfr_zeta,
   mpfr_greater_p, mpfr_greaterequal_p, mpfr_less_p, mpfr_lessequal_p,
   mpfr_lessgreater_p, mpfr_equal_p, mpfr_unordered_p.
 - removed functions: mpfr_print_binary, mpfr_round_prec (replaced by
   mpfr_prec_round), mpfr_set_str_raw, mpfr_set_machine_rnd_mode.
 - function mpfr_isinteger renamed mpfr_integer_p.
 - return type of some functions changed from void to int, for consistency.
 - return type of mpfr_set_prec changed from int to void.
 - new values for exponent range.
 - rename internal variables.

 Changes from version 2001 to version 2.0.1:
 - new mathematical functions: acos, acosh, asin, asinh, atan, atanh, cosh,
   base-2 exponential and logarithm, base-10 logarithm, expm1, factorial,
   pow, pow_si, pow_ui, sinh, tan, tanh, ui_pow, ui_pow_ui
 - other new functions: mpfr_const_euler, mpfr_dim, mpfr_fma, mpfr_hypot,
   mpfr_min, mpfr_max, mpfr_rint, mpfr_set_inf, mpfr_set_nan
 - new operations with MPZ or MPQ: mpfr_{add,sub,mul,div}_[zq]
 - new predicates: mpfr_inf_p, mpfr_nan_p, mpfr_number_p, mpfr_isinteger,
 - add mechanism to set/check exponent range (overflow, underflow), partially
   implemented in the mpfr functions.
 - efficiency: mpfr_div is now faster when the divisor has a few limbs
 - rounding: now mpfr_pow implements exact rounding, and most functions return a
   ternary value indicating the position of the returned value wrt the exact one
   (thus the return value is now 'int' instead of 'void')
 - complete rewrite of the configuration files
 - mpfr_get_d, mpfr_{add,sub}_one_ulp now get a rounding mode as 2nd argument
 - some function names did change: mpz_set_fr is now mpfr_get_z_exp,
   mpfr_print_raw is now mpfr_print_binary.

 Changes from version 1.0 to version 2001:
 - the default installation does not provide any more access to machine
   rounding mode, and as a consequence does not compare MPFR results with
   precision=53 to machine results. Add option -DTEST if you want to have
   access to machine rounding mode, and to check MPFR results against.
 - the MPFR files do not need <math.h> any more
 - the header file <mpfr.h> was split into <mpfr.h> for exported functions
   and <mpfr-impl.h> for internal functions. The user should not use functions
   or macros from <mpfr-impl.h>, since those may change in further releases.
 - <mpfr.h> was modified in order to make easy a C++ interface
 - MPFR now deals with infinities (+infinity and -infinity) and NaN
 - the missing function mpfr_swap is now available
 - mpfr_zeta was removed (was incomplete)
 - mpfr_init and mpfr_init2 now initialize the corresponding variable to 0
   (like in other initialization functions from GNU MP)
 - in case memory allocation fails, an error message is output
 - several bugs of version 1.0 were fixed

 Changes from version 0.4 to version 1.0:

 - Version 1.0 now uses a standard configure/make installation.
 - Version 1.0 implements all functions that are available in the MPF class
   from GMP 3.1 (except mpf_swap) and a header file mpf2mpfr.h is included in
   the distribution for easy change from MPF to MPFR.
 - Version 1.0 implements new elementary functions: mpfr_sincos
 - Some functions and macros have been renamed: mpfr_log2 is now
   mpfr_const_log2, mpfr_pi is now mpfr_const_pi, SIGN is now MPFR_SIGN.
 - Version 1.0 uses faster algorithms for mpfr_exp, mpfr_const_pi,
   mpfr_const_log2. Compare the timings from version 1.0 and version 0.4.
 - Version 1.0 corrects some bugs of version 0.4.
 - The precision of MPFR variables is now named mpfr_prec, which makes it
   easier to change it, to say unsigned long long. Same for the rounding mode
   which is called mp_rnd_t.

 You'll find other news concerning the GNU MPFR library on the web
 page <http://www.mpfr.org/>.
	Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
	Contributed by the Arenaire and Cacao projects, INRIA.

	This file is part of the GNU MPFR Library.

	The GNU MPFR Library is free software; you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published by
	the Free Software Foundation; either version 2.1 of the License, or (at your
	option) any later version.

	The GNU MPFR Library is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
	License for more details.

	You should have received a copy of the GNU Lesser General Public License
	along with the GNU MPFR Library; see the file COPYING.LIB. If not, write to
	the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
	MA 02110-1301, USA.

	##############################################################################

	Changes from version 2.4.0 to version 2.4.1:
	- Security fix in mpfr_snprintf and mpfr_vsnprintf (buffer overflow).
	- Configure: new checks for length modifiers 'hh' and 'll' (new in C99)
	as 'hh' is absent on alpha-OSF1-V5.
	- Miscellaneous corrections in the MPFR manual. In particular,
	mpfr_inits, mpfr_inits2, mpfr_clears and MPFR_DECL_INIT have been
	in the public API since MPFR 2.4.0.

	Changes from versions 2.3.* to version 2.4.0:
	- The "andouillette sauce moutarde" release.
	- MPFR is now a GNU package.
	- Changes in the behavior of mpfr_strtofr and in its documentation
	concerning particular cases where the code and the documentation
	did not match; this change is also present in MPFR 2.3.1.
	- Behavior of mpfr_check_range changed: if the value is an inexact
	infinity, the overflow flag is set (in case it was lost); this
	change is also present in MPFR 2.3.2.
	- Function mpfr_init_gmp_rand (only defined when building MPFR without
	the --with-gmp-build configure option) is no longer defined at all.
	This function was private and not documented, and was used only in
	the MPFR test suite. User code that calls it is regarded as broken
	and may fail as a consequence. Running the old test suite against
	MPFR 2.4.0 may also fail.
	- New functions:
	* between a MPFR number and a double: mpfr_add_d, mpfr_sub_d,
	mpfr_d_sub, mpfr_mul_d, mpfr_div_d, mpfr_d_div,
	* formatted input/output:
	mpfr_printf, mpfr_fprintf, mpfr_vprintf, mpfr_vfprintf,
	mpfr_sprintf, mpfr_snprintf, mpfr_vsprintf, mpfr_vsnprintf,
	mpfr_asprintf, mpfr_vasprintf.
	* mpfr_sinh_cosh, mpfr_li2, mpfr_modf, mpfr_fmod, mpfr_rec_sqrt.
	- Configure test for TLS support.
	- Get default $CC and $CFLAGS from gmp.h (__GMP_CC / __GMP_CFLAGS,
	which are available as of GMP 4.2.3).
	- Documented the fact that mpfr_random and mpfr_random2 will be
	suppressed in the next release, and that the specification of
	mpfr_eq may change in the next release (for compatibility with
	the mpf layer of GMP).
	- Test coverage: 96.7% lines of code
	- Bug fixes.

	Changes from versions 2.2.* to version 2.3.0:
	- The mpfr.info file is now installed in the share subdirectory
	(as required by the Filesystem Hierarchy Standard); see output
	of "./configure --help".
	- The shared library is now enabled by default. If the MPFR build
	fails on your platform, try the --disable-shared configure option
	to disable the shared library.
	- Thread-safe support with Microsoft Visual compiler.
	- New functions mpfr_j0, mpfr_j1, mpfr_jn, mpfr_y0, mpfr_y1, mpfr_yn,
	mpfr_lgamma, mpfr_remainder, mpfr_remquo, mpfr_fms, mpfr_signbit,
	mpfr_setsign, mpfr_copysign, mpfr_get_patches.
	- Functions mpfr_sin, mpfr_cos and mpfr_sin_cos improved (argument
	reduction).
	- More detailed MPFR manual.
	- Improved tests (make check).
	- Bug fixes.

	Changes from versions 2.1.* to version 2.2.0:
	- Bug fixes.
	- new functions mpfr_set_overflow, mpfr_set_underflow, mpfr_set_inexflag,
	mpfr_set_erangeflag, mpfr_set_nanflag, mpfr_erfc, mpfr_atan2, mpfr_pow_z,
	mpfr_subnormalize, mpfr_const_catalan, mpfr_sec, mpfr_csc, mpfr_cot,
	mpfr_root, mpfr_eint, mpfr_get_f, mpfr_sech, mpfr_csch, mpfr_coth,
	mpfr_lngamma.
	- new macro: MPFR_VERSION_STRING
	- Remove the exported MPFR variables from mpfr.h to mpfr-impl.h.
	(They were undocumented, so programs which respect the API still work).
	- Grep CC and CFLAGS from GMP Makefile if possible.
	- Math functions are faster (both average and worst cases).
	- Better support for long double.
	- Shared library of MPFR.
	- Binary compatible with previous versions if you do not use undocumented
	features.
	- Thread safe (if built with --enable-thread-safe).
	- Logging facility.
	- Change in the semantics of mpfr_out_str/mpfr_get_str when n_digits=0.
	- Better locale support.

	Changes from version 2.1.0 to version 2.1.1:
	- Better way to detect the GMP library.
	- Bug fixes.

	Changes from version 2.0.3 to version 2.1.0:
	- Bug fixes.
	- new functions mpfr_strtofr, mpfr_set_uj, mpfr_set_sj, mpfr_set_ui_2exp,
	mpfr_set_si_2exp, mpfr_set_sj_2exp, mpfr_set_uj_2exp, mpfr_get_uj,
	mpfr_get_sj, mpfr_get_z, mpfr_free_str, mpfr_si_sub, mpfr_sub_si,
	mpfr_mul_si, mpfr_si_div, mpfr_div_si, mpfr_sqr, mpfr_cmp_z, mpfr_cmp_q,
	mpfr_zero_p, mpfr_free_cache, mpfr_sum, mpfr_get_version,
	mpfr_get_default_rounding_mode, mpfr_get_emin_min, mpfr_get_emin_max,
	mpfr_get_emax_min, mpfr_get_emax_max, mpfr_inits, mpfr_inits2, mpfr_clears,
	mpfr_fits_intmax_p, mpfr_fits_uintmax_p, mpfr_clear_erangeflag,
	mpfr_erangeflag_p, mpfr_rint_round, mpfr_rint_trunc, mpfr_rint_ceil,
	mpfr_rint_floor.
	- new macros MPFR_DECL_INIT, MPFR_VERSION, MPFR_VERSION_NUM,
	MPFR_VERSION_MAJOR, MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL.
	- improved documentation.
	- improved configure.
	- improved portability (library and test suite).
	- It handles correctly non IEEE-754 double.
	- GMP internal files are not needed to install MPFR.
	- It is faster with low-precision floating point.
	- New global flag: ERANGE_FLAG.
	- Binary incompatible with previous versions, but API compatible.
	- mpfr_set_str doesn't allow anymore "@NAN@garbagechar" and "@INF@garbagechar",
	allows base 0 (detection of the base), prefix (0x, 0b), leading whitespace.

	Changes from version 2.0.2 to version 2.0.3:
	- Bug fixes.
	- Support GMP as a shared library (not fully tested).

	Changes from version 2.0.1 to version 2.0.2:
	- many bug fixes and other improvements.
	- new functions mpfr_prec_round (replaces mpfr_round_prec), mpfr_get_exp,
	mpfr_set_exp, mpfr_get_ld, mpfr_set_ld, mpfr_get_d_2exp, mpfr_get_si,
	mpfr_get_ui, mpfr_nextabove, mpfr_nextbelow, mpfr_nexttoward, mpfr_frac,
	mpfr_fits_*, mpfr_cmp_d, mpfr_cmpabs, mpfr_erf, mpfr_gamma, mpfr_zeta,
	mpfr_greater_p, mpfr_greaterequal_p, mpfr_less_p, mpfr_lessequal_p,
	mpfr_lessgreater_p, mpfr_equal_p, mpfr_unordered_p.
	- removed functions: mpfr_print_binary, mpfr_round_prec (replaced by
	mpfr_prec_round), mpfr_set_str_raw, mpfr_set_machine_rnd_mode.
	- function mpfr_isinteger renamed mpfr_integer_p.
	- return type of some functions changed from void to int, for consistency.
	- return type of mpfr_set_prec changed from int to void.
	- new values for exponent range.
	- rename internal variables.

	Changes from version 2001 to version 2.0.1:
	- new mathematical functions: acos, acosh, asin, asinh, atan, atanh, cosh,
	base-2 exponential and logarithm, base-10 logarithm, expm1, factorial,
	pow, pow_si, pow_ui, sinh, tan, tanh, ui_pow, ui_pow_ui
	- other new functions: mpfr_const_euler, mpfr_dim, mpfr_fma, mpfr_hypot,
	mpfr_min, mpfr_max, mpfr_rint, mpfr_set_inf, mpfr_set_nan
	- new operations with MPZ or MPQ: mpfr_{add,sub,mul,div}_[zq]
	- new predicates: mpfr_inf_p, mpfr_nan_p, mpfr_number_p, mpfr_isinteger,
	- add mechanism to set/check exponent range (overflow, underflow), partially
	implemented in the mpfr functions.
	- efficiency: mpfr_div is now faster when the divisor has a few limbs
	- rounding: now mpfr_pow implements exact rounding, and most functions return a
	ternary value indicating the position of the returned value wrt the exact one
	(thus the return value is now 'int' instead of 'void')
	- complete rewrite of the configuration files
	- mpfr_get_d, mpfr_{add,sub}_one_ulp now get a rounding mode as 2nd argument
	- some function names did change: mpz_set_fr is now mpfr_get_z_exp,
	mpfr_print_raw is now mpfr_print_binary.

	Changes from version 1.0 to version 2001:
	- the default installation does not provide any more access to machine
	rounding mode, and as a consequence does not compare MPFR results with
	precision=53 to machine results. Add option -DTEST if you want to have
	access to machine rounding mode, and to check MPFR results against.
	- the MPFR files do not need <math.h> any more
	- the header file <mpfr.h> was split into <mpfr.h> for exported functions
	and <mpfr-impl.h> for internal functions. The user should not use functions
	or macros from <mpfr-impl.h>, since those may change in further releases.
	- <mpfr.h> was modified in order to make easy a C++ interface
	- MPFR now deals with infinities (+infinity and -infinity) and NaN
	- the missing function mpfr_swap is now available
	- mpfr_zeta was removed (was incomplete)
	- mpfr_init and mpfr_init2 now initialize the corresponding variable to 0
	(like in other initialization functions from GNU MP)
	- in case memory allocation fails, an error message is output
	- several bugs of version 1.0 were fixed

	Changes from version 0.4 to version 1.0:

	- Version 1.0 now uses a standard configure/make installation.
	- Version 1.0 implements all functions that are available in the MPF class
	from GMP 3.1 (except mpf_swap) and a header file mpf2mpfr.h is included in
	the distribution for easy change from MPF to MPFR.
	- Version 1.0 implements new elementary functions: mpfr_sincos
	- Some functions and macros have been renamed: mpfr_log2 is now
	mpfr_const_log2, mpfr_pi is now mpfr_const_pi, SIGN is now MPFR_SIGN.
	- Version 1.0 uses faster algorithms for mpfr_exp, mpfr_const_pi,
	mpfr_const_log2. Compare the timings from version 1.0 and version 0.4.
	- Version 1.0 corrects some bugs of version 0.4.
	- The precision of MPFR variables is now named mpfr_prec, which makes it
	easier to change it, to say unsigned long long. Same for the rounding mode
	which is called mp_rnd_t.

	You'll find other news concerning the GNU MPFR library on the web
	page <http://www.mpfr.org/>.