GNU MPFR version 4.2.0 (released on 6 January 2023)

The fondue savoyarde release.

MPFR 4.2.0 requires GMP 5.0 or higher.

Download

The MPFR 4.2.0 source can be downloaded in the following archive formats:

• mpfr-4.2.0.tar.xz (tar/xz, 1.5 MB, signature),
• mpfr-4.2.0.tar.bz2 (tar/bzip2, 1.7 MB, signature),
• mpfr-4.2.0.tar.gz (tar/gzip, 2.2 MB, signature),
• mpfr-4.2.0.zip (zip, 2.6 MB, signature).

Each tarball is signed by Vincent Lefèvre. This can be verified using the DSA key ID 5831D11A0D4DB02A; this key can be retrieved with:

gpg --recv-keys 5831D11A0D4DB02A

or by downloading it from https://www.vinc17.net/pgp.html. The key fingerprint is:

A534 BE3F 83E2 41D9 1828  0AEB 5831 D11A 0D4D B02A

The signatures can be verified with:

gpg --verify file.asc

You should check that the key fingerprint matches.

MPFR is also available via third-party packages and ports.

Documentation

• The reference manual: [html] [dvi] [ps] [pdf]
• The MPFR FAQ (common to all MPFR versions).

Bugs

See the BUGS file.

Changes from versions 4.1.* to version 4.2.0

• Binary compatible with MPFR 4.0.* and 4.1.*, though some minor changes in the behavior of the formatted output functions may be visible, regarded as underspecified behavior or bug fixes (see below).
• New functions mpfr_cosu, mpfr_sinu, mpfr_tanu, mpfr_acosu, mpfr_asinu, mpfr_atanu and mpfr_atan2u.
• New functions mpfr_cospi, mpfr_sinpi, mpfr_tanpi, mpfr_acospi, mpfr_asinpi, mpfr_atanpi and mpfr_atan2pi.
• New functions mpfr_log2p1, mpfr_log10p1, mpfr_exp2m1, mpfr_exp10m1 and mpfr_compound_si.
• New functions mpfr_fmod_ui, mpfr_powr, mpfr_pown, mpfr_pow_uj, mpfr_pow_sj and mpfr_rootn_si (mpfr_pown is actually a macro defined as an alias for mpfr_pow_sj).
• Bug fixes.
  • In particular, for the formatted output functions (mpfr_printf, etc.), the case where the precision consists only of a period has been fixed to be like .0 as specified in the ISO C standard, and the manual has been corrected and clarified.
  • The macros of the custom interface have also been fixed: they now behave like functions (except a minor limitation for mpfr_custom_init_set).

Platforms Known to Support MPFR

MPFR 4.2.0 has been successfully compiled and checked on the following platforms:

• aarch64-unknown-linux-gnu (gcc 8.5.0 and 12.2.0, clang 15.0.6 on Termux/Android, tcc mob branch);
• amd64-unknown-openbsd7.0 (OpenBSD 7.0, gcc 8.4.0);
• armv7l-unknown-linux-gnueabihf (gcc 12.1.0 bootstrap);
• i586-unknown-freebsd13.1 (clang 13.0.0);
• i686-w64-mingw32 (Wine, MinGW32 gcc 12 20220819);
• loongarch64-unknown-linux-gnu (gcc 12.2.1);
• mips-unknown-linux-gnu (o32 and n32 ABI, gcc 8.3.0);
• mips64-unknown-openbsd7.2 (OpenBSD 7.2, clang 13.0.0);
• powerpc-ibm-aix7.2.4.0 (IBM POWER8, gcc7.2.0);
• powerpc64-unknown-linux-gnu (IBM POWER7, gcc 4.8.5);
• powerpc64le-unknown-linux-gnu (IBM POWER8, gcc 4.8.5; IBM POWER9, gcc 4.8.5 and 8.3.1, IBM XL C/C++ 16.1.1.3);
• riscv64-unknown-freebsd14.0 (clang 14.0.5);
• sparc-sun-solaris2.8 (gcc 4.5.1);
• sparc-sun-solaris2.9 (gcc 4.6.4);
• sparc-sun-solaris2.10 (gcc 5.5.0);
• sparc-sun-solaris2.11 (Studio 12.6 Sun C 5.15);
• sparc64-unknown-linux-gnu (gcc 12.2.0);
• x86_64-pc-linux-gnu (gcc 4.8.5, 4.9.4, 5.5.0, 6.5.0, 8.4.0, 9.5.0, 10.4.0 and 12.2.0, g++ 4.9.4 and 12.2.0, clang 3.6.2, 3.7.1, 6.0.1, 7.0.1, 8.0.1, 9.0.1, 10.0.1, 11.1.0, 12.0.1, 13.0.1, 14.0.6 and 15.0.6, Intel oneAPI icx 2021.3.0, and tcc 0.9.27);
• x86_64-unknown-freebsd13.0 (FreeBSD 13.0-RELEASE-p3, clang 11.0.1);
• x86_64-unknown-netbsd9.2 (NetBSD 9.2, gcc 7.5.0);
• x86_64-unknown-netbsd9.3 (NetBSD 9.3, gcc 12.2.0).

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