initial import of mpc 1.3.1. changes from 1.2.1 include:

New function: mpc_agm
New rounding modes "away from zero", indicated by the letter "A" and
corresponding to MPFR_RNDA on the designated real or imaginary part.
New experimental ball arithmetic.
New experimental function: mpc_eta_fund
Bug fixes:
- mpc_asin for asin(z) with small |Re(z)| and tiny |Im(z)|
- mpc_pow_fr: sign of zero part of result when the base has up to sign
the same real and imaginary part, and the exponent is an even positive
integer
- mpc_fma: the returned int value was incorrect in some cases
(indicating whether the rounded real/imaginary parts were
smaller/equal/greater than the exact values), but the computed complex
value was correct.
- Remove the unmaintained Makefile.vc; build files for Visual Studio are
maintained independently by Brian Gladman.

initial import of mpc 1.2.0. main changes are:

New functions:
mpc_sum
mpc_dot

Several functions are more robust with a reduced exponent range (for
example corresponding to IEEE 754 binary formats).

import MPC 1.1.0. from their NEWS:

Changes in version 1.1.0:
- Minimally required library versions: GMP 5.0.0 and MPFR 3.0.0
- Fixed issues with MPFR 4.0.0
- New functions: mpc_cmp_abs, mpc_rootofunity
- Improved speed for corner cases of mpc_asin, mpc_sin, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2013-December/001266.html
- Rewrite of the testing framework
- New mpcbench tool, used with "make bench"
- Fixed handling of over- and underflows with directed rounding in the
"other direction" for mpc_cos, mpc_sin, mpc_exp and mpc_pow, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2015-March/001336.html
- Fixed a bug in mpc_atan(0,y) with |y| near 1, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2017-March/001404.html

branches: 1.1.1.2.2; 1.1.1.2.4;
initial import of MPC 1.0.3 package. changes since 1.0.1:

Changes in version 1.0.3:
- Fixed mpc_pow, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2014-October/001315.html
- #18257: Switched to libtool 2.4.5.

Changes in version 1.0.2:
- Fixed mpc_atan, mpc_atanh for (+-0, +-1), see
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57994#c7
- Fixed mpc_log10 for purely imaginary argument, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2012-September/001208.html

branches: 1.1.1.1.4; 1.1.1.1.8;
initial import of MPC 1.0.1 package. changes since 0.9:

Changes in version 1.0.1:
- Switched to automake 1.11.6, see
https://lists.gnu.org/archive/html/automake/2012-07/msg00023.html
- #14669: Fixed extraction of CC from gmp.h
- Fixed case of intermediate zero real or imaginary part in mpc_fma,
found by hydra with GMP_CHECK_RANDOMIZE=1346362345

Changes in version 1.0:
- First release as a GNU package
- License change: LGPLv3+ for code, GFDLv1.3+ (with no invariant sections)
for documentation
- 100% of all lines are covered by tests
- Functions renamed:
mpc_mul_2exp to mpc_mul_2ui, mpc_div_2exp to mpc_div_2ui
- 0^0, which returned (NaN,NaN) previously, now returns (1,+0)
- Removed compatibility with K&R compilers, untestable due to lack of
such compilers
- New functions: mpc_log10, mpc_mul_2si, mpc_div_2si
- Speed-ups:
- mpc_fma
- Bug fixes:
- mpc_div and mpc_norm now return a value indicating the effective
rounding direction, as the other functions
- mpc_mul, mpc_sqr and mpc_norm now return correct results even if there
are over- or underflows during the computation
- mpc_asin, mpc_proj, mpc_sqr: Wrong result when input variable has
infinite part and equals output variable is corrected
- mpc_fr_sub: Wrong return value for imaginary part is corrected

initial import of mpc 1.2.0. main changes are:

New functions:
mpc_sum
mpc_dot

Several functions are more robust with a reduced exponent range (for
example corresponding to IEEE 754 binary formats).

import MPC 1.1.0. from their NEWS:

Changes in version 1.1.0:
- Minimally required library versions: GMP 5.0.0 and MPFR 3.0.0
- Fixed issues with MPFR 4.0.0
- New functions: mpc_cmp_abs, mpc_rootofunity
- Improved speed for corner cases of mpc_asin, mpc_sin, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2013-December/001266.html
- Rewrite of the testing framework
- New mpcbench tool, used with "make bench"
- Fixed handling of over- and underflows with directed rounding in the
"other direction" for mpc_cos, mpc_sin, mpc_exp and mpc_pow, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2015-March/001336.html
- Fixed a bug in mpc_atan(0,y) with |y| near 1, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2017-March/001404.html

branches: 1.1.1.2.2; 1.1.1.2.4;
initial import of MPC 1.0.3 package. changes since 1.0.1:

Changes in version 1.0.3:
- Fixed mpc_pow, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2014-October/001315.html
- #18257: Switched to libtool 2.4.5.

Changes in version 1.0.2:
- Fixed mpc_atan, mpc_atanh for (+-0, +-1), see
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57994#c7
- Fixed mpc_log10 for purely imaginary argument, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2012-September/001208.html

branches: 1.1.1.1.4; 1.1.1.1.8;
initial import of MPC 1.0.1 package. changes since 0.9:

Changes in version 1.0.1:
- Switched to automake 1.11.6, see
https://lists.gnu.org/archive/html/automake/2012-07/msg00023.html
- #14669: Fixed extraction of CC from gmp.h
- Fixed case of intermediate zero real or imaginary part in mpc_fma,
found by hydra with GMP_CHECK_RANDOMIZE=1346362345

Changes in version 1.0:
- First release as a GNU package
- License change: LGPLv3+ for code, GFDLv1.3+ (with no invariant sections)
for documentation
- 100% of all lines are covered by tests
- Functions renamed:
mpc_mul_2exp to mpc_mul_2ui, mpc_div_2exp to mpc_div_2ui
- 0^0, which returned (NaN,NaN) previously, now returns (1,+0)
- Removed compatibility with K&R compilers, untestable due to lack of
such compilers
- New functions: mpc_log10, mpc_mul_2si, mpc_div_2si
- Speed-ups:
- mpc_fma
- Bug fixes:
- mpc_div and mpc_norm now return a value indicating the effective
rounding direction, as the other functions
- mpc_mul, mpc_sqr and mpc_norm now return correct results even if there
are over- or underflows during the computation
- mpc_asin, mpc_proj, mpc_sqr: Wrong result when input variable has
infinite part and equals output variable is corrected
- mpc_fr_sub: Wrong return value for imaginary part is corrected

import MPC 1.1.0. from their NEWS:

Changes in version 1.1.0:
- Minimally required library versions: GMP 5.0.0 and MPFR 3.0.0
- Fixed issues with MPFR 4.0.0
- New functions: mpc_cmp_abs, mpc_rootofunity
- Improved speed for corner cases of mpc_asin, mpc_sin, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2013-December/001266.html
- Rewrite of the testing framework
- New mpcbench tool, used with "make bench"
- Fixed handling of over- and underflows with directed rounding in the
"other direction" for mpc_cos, mpc_sin, mpc_exp and mpc_pow, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2015-March/001336.html
- Fixed a bug in mpc_atan(0,y) with |y| near 1, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2017-March/001404.html

branches: 1.1.1.2.2;
initial import of MPC 1.0.3 package. changes since 1.0.1:

Changes in version 1.0.3:
- Fixed mpc_pow, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2014-October/001315.html
- #18257: Switched to libtool 2.4.5.

Changes in version 1.0.2:
- Fixed mpc_atan, mpc_atanh for (+-0, +-1), see
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57994#c7
- Fixed mpc_log10 for purely imaginary argument, see
http://lists.gforge.inria.fr/pipermail/mpc-discuss/2012-September/001208.html

branches: 1.1.1.1.4; 1.1.1.1.8;
initial import of MPC 1.0.1 package. changes since 0.9:

Changes in version 1.0.1:
- Switched to automake 1.11.6, see
https://lists.gnu.org/archive/html/automake/2012-07/msg00023.html
- #14669: Fixed extraction of CC from gmp.h
- Fixed case of intermediate zero real or imaginary part in mpc_fma,
found by hydra with GMP_CHECK_RANDOMIZE=1346362345

Changes in version 1.0:
- First release as a GNU package
- License change: LGPLv3+ for code, GFDLv1.3+ (with no invariant sections)
for documentation
- 100% of all lines are covered by tests
- Functions renamed:
mpc_mul_2exp to mpc_mul_2ui, mpc_div_2exp to mpc_div_2ui
- 0^0, which returned (NaN,NaN) previously, now returns (1,+0)
- Removed compatibility with K&R compilers, untestable due to lack of
such compilers
- New functions: mpc_log10, mpc_mul_2si, mpc_div_2si
- Speed-ups:
- mpc_fma
- Bug fixes:
- mpc_div and mpc_norm now return a value indicating the effective
rounding direction, as the other functions
- mpc_mul, mpc_sqr and mpc_norm now return correct results even if there
are over- or underflows during the computation
- mpc_asin, mpc_proj, mpc_sqr: Wrong result when input variable has
infinite part and equals output variable is corrected
- mpc_fr_sub: Wrong return value for imaginary part is corrected