mpfr-4.2.2

[Bruce Dubbs]

New point version.

[Bruce Dubbs]

Changes from version 4.2.1 to version 4.2.2:

• In order to resolve a portability issue with the _Float128 fallback to float128 for binary128 support (e.g. with Clang and glibc 2.41), the prototypes of the corresponding conversion functions had to be changed, with _Float128 replaced by mpfr_float128, where mpfr_float128 is a macro defined as _Float128 by default. This changes neither the ABI nor the API (except that the end user of MPFR would need to define mpfr_float128 as the actual type for the binary128 format if this is not the standard _Float128 type).
• Other bug fixes (see <​https://www.mpfr.org/mpfr-4.2.1/#fixed> and/or the ChangeLog file). In particular, the formatted output functions behaved incorrectly with %c on the value 0; such a use is uncommon, but this bug may have security implications.
• Improved MPFR manual.
• Detect the use of GMP's buggy vsnprintf replacement at configure time. With it, the tests of "%a" will be disabled to avoid an assertion failure in the MPFR testsuite. A warning will be displayed in the configure output in such a case.

[Bruce Dubbs]

Fixed at commit a05804f155.