Package init
This commit is contained in:
overweight
commit
7de5b1e178
BIN
mpfr-3.1.6.tar.xz
Normal file
BIN
mpfr-3.1.6.tar.xz
Normal file
Binary file not shown.
84
mpfr.spec
Normal file
84
mpfr.spec
Normal file
@ -0,0 +1,84 @@
|
|||||||
|
Name: mpfr
|
||||||
|
Version: 3.1.6
|
||||||
|
Release: 3
|
||||||
|
Summary: A C library for multiple-precision floating-point computations
|
||||||
|
URL: http://www.mpfr.org/
|
||||||
|
License: LGPLv3+ and GPLv3+ and GFDL
|
||||||
|
BuildRequires: autoconf libtool gmp-devel gcc git
|
||||||
|
Requires: /sbin/ldconfig
|
||||||
|
Requires: gmp >= 4.2.3
|
||||||
|
|
||||||
|
Source0: http://www.mpfr.org/%{name}-%{version}/%{name}-%{version}.tar.xz
|
||||||
|
|
||||||
|
Patch0: rev11783.patch
|
||||||
|
Patch1: rev11982.patch
|
||||||
|
|
||||||
|
%description
|
||||||
|
MPFR is a C library for arbitrary-precision binary floating-point computation
|
||||||
|
with correct rounding, based on Multi-Precision Library. The computation is
|
||||||
|
both efficient and has a well-defined semantics: the functions are completely
|
||||||
|
specified on all the possible operands and the results do not depend on the
|
||||||
|
platform. This is done by copying the ideas from the ANSI/IEEE-754 standard
|
||||||
|
for fixed-precision floating-point arithmetic (correct rounding and exceptions,
|
||||||
|
in particular)
|
||||||
|
|
||||||
|
%package devel
|
||||||
|
Summary: Development files for the MPFR library
|
||||||
|
Requires: %{name} = %{version}-%{release}
|
||||||
|
Requires: /sbin/install-info
|
||||||
|
Requires: gmp-devel
|
||||||
|
|
||||||
|
%description devel
|
||||||
|
Devel for %{name}
|
||||||
|
|
||||||
|
If you want to develop applications which will use the MPFR library,
|
||||||
|
you'll need to install the mpfr-devel package. You'll also need to
|
||||||
|
install the mpfr package.
|
||||||
|
|
||||||
|
%prep
|
||||||
|
%autosetup -p1
|
||||||
|
|
||||||
|
%build
|
||||||
|
%configure --disable-assert --disable-static
|
||||||
|
make %{?_smp_mflags}
|
||||||
|
|
||||||
|
%install
|
||||||
|
make install DESTDIR=$RPM_BUILD_ROOT
|
||||||
|
rm -f $RPM_BUILD_ROOT%{_libdir}/libmpfr.la
|
||||||
|
rm -f $RPM_BUILD_ROOT%{_infodir}/dir
|
||||||
|
|
||||||
|
rm -f $RPM_BUILD_ROOT%{_pkgdocdir}/COPYING $RPM_BUILD_ROOT%{_pkgdocdir}/COPYING.LESSER
|
||||||
|
|
||||||
|
%check
|
||||||
|
make %{?_smp_mflags} check
|
||||||
|
|
||||||
|
%post -p /sbin/ldconfig
|
||||||
|
|
||||||
|
%postun -p /sbin/ldconfig
|
||||||
|
|
||||||
|
%post devel
|
||||||
|
if [ -f %{_infodir}/mpfr.info.gz ]; then
|
||||||
|
/sbin/install-info %{_infodir}/mpfr.info.gz %{_infodir}/dir || :
|
||||||
|
fi
|
||||||
|
|
||||||
|
%preun devel
|
||||||
|
if [ "$1" = 0 ]; then
|
||||||
|
if [ -f %{_infodir}/mpfr.info.gz ]; then
|
||||||
|
/sbin/install-info --delete %{_infodir}/mpfr.info.gz %{_infodir}/dir || :
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
%files
|
||||||
|
%license COPYING COPYING.LESSER
|
||||||
|
%doc NEWS README AUTHORS BUGS TODO doc/FAQ.html
|
||||||
|
%{_libdir}/libmpfr.so.*
|
||||||
|
|
||||||
|
%files devel
|
||||||
|
%{_pkgdocdir}/examples
|
||||||
|
%{_libdir}/libmpfr.so
|
||||||
|
%{_includedir}/*.h
|
||||||
|
%{_infodir}/mpfr.info*
|
||||||
|
|
||||||
|
%changelog
|
||||||
|
* Tue Aug 13 2019 openEuler Buildteam <buildteam@openeuler.org> - 3.1.6-3
|
||||||
|
- Package init
|
||||||
285
rev11783.patch
Normal file
285
rev11783.patch
Normal file
@ -0,0 +1,285 @@
|
|||||||
|
diff -Naurd mpfr-3.1.6-a/PATCHES mpfr-3.1.6-b/PATCHES
|
||||||
|
--- mpfr-3.1.6-a/PATCHES 2017-10-26 13:55:51.168013439 +0000
|
||||||
|
+++ mpfr-3.1.6-b/PATCHES 2017-10-26 13:55:51.236013121 +0000
|
||||||
|
@@ -0,0 +1 @@
|
||||||
|
+mpfr_get
|
||||||
|
diff -Naurd mpfr-3.1.6-a/VERSION mpfr-3.1.6-b/VERSION
|
||||||
|
--- mpfr-3.1.6-a/VERSION 2017-09-07 11:36:44.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/VERSION 2017-10-26 13:55:51.236013121 +0000
|
||||||
|
@@ -1 +1 @@
|
||||||
|
-3.1.6
|
||||||
|
+3.1.6-p1
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/get_ld.c mpfr-3.1.6-b/src/get_ld.c
|
||||||
|
--- mpfr-3.1.6-a/src/get_ld.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/get_ld.c 2017-10-26 13:55:51.208013252 +0000
|
||||||
|
@@ -41,6 +41,9 @@
|
||||||
|
mpfr_exp_t sh; /* exponent shift, so that x/2^sh is in the double range */
|
||||||
|
mpfr_t y, z;
|
||||||
|
int sign;
|
||||||
|
+ MPFR_SAVE_EXPO_DECL (expo);
|
||||||
|
+
|
||||||
|
+ MPFR_SAVE_EXPO_MARK (expo);
|
||||||
|
|
||||||
|
/* first round x to the target long double precision, so that
|
||||||
|
all subsequent operations are exact (this avoids double rounding
|
||||||
|
@@ -103,6 +106,7 @@
|
||||||
|
}
|
||||||
|
if (sign < 0)
|
||||||
|
r = -r;
|
||||||
|
+ MPFR_SAVE_EXPO_FREE (expo);
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/get_si.c mpfr-3.1.6-b/src/get_si.c
|
||||||
|
--- mpfr-3.1.6-a/src/get_si.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/get_si.c 2017-10-26 13:55:51.208013252 +0000
|
||||||
|
@@ -28,6 +28,7 @@
|
||||||
|
mpfr_prec_t prec;
|
||||||
|
long s;
|
||||||
|
mpfr_t x;
|
||||||
|
+ MPFR_SAVE_EXPO_DECL (expo);
|
||||||
|
|
||||||
|
if (MPFR_UNLIKELY (!mpfr_fits_slong_p (f, rnd)))
|
||||||
|
{
|
||||||
|
@@ -39,14 +40,22 @@
|
||||||
|
if (MPFR_IS_ZERO (f))
|
||||||
|
return (long) 0;
|
||||||
|
|
||||||
|
- /* determine prec of long */
|
||||||
|
- for (s = LONG_MIN, prec = 0; s != 0; s /= 2, prec++)
|
||||||
|
+ /* Determine the precision of long. |LONG_MIN| may have one more bit
|
||||||
|
+ as an integer, but in this case, this is a power of 2, thus fits
|
||||||
|
+ in a precision-prec floating-point number. */
|
||||||
|
+ for (s = LONG_MAX, prec = 0; s != 0; s /= 2, prec++)
|
||||||
|
{ }
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_MARK (expo);
|
||||||
|
+
|
||||||
|
/* first round to prec bits */
|
||||||
|
mpfr_init2 (x, prec);
|
||||||
|
mpfr_rint (x, f, rnd);
|
||||||
|
|
||||||
|
+ /* The flags from mpfr_rint are the wanted ones. In particular,
|
||||||
|
+ it sets the inexact flag when necessary. */
|
||||||
|
+ MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
|
||||||
|
+
|
||||||
|
/* warning: if x=0, taking its exponent is illegal */
|
||||||
|
if (MPFR_UNLIKELY (MPFR_IS_ZERO(x)))
|
||||||
|
s = 0;
|
||||||
|
@@ -65,5 +74,7 @@
|
||||||
|
|
||||||
|
mpfr_clear (x);
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_FREE (expo);
|
||||||
|
+
|
||||||
|
return s;
|
||||||
|
}
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/get_sj.c mpfr-3.1.6-b/src/get_sj.c
|
||||||
|
--- mpfr-3.1.6-a/src/get_sj.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/get_sj.c 2017-10-26 13:55:51.208013252 +0000
|
||||||
|
@@ -35,6 +35,7 @@
|
||||||
|
intmax_t r;
|
||||||
|
mpfr_prec_t prec;
|
||||||
|
mpfr_t x;
|
||||||
|
+ MPFR_SAVE_EXPO_DECL (expo);
|
||||||
|
|
||||||
|
if (MPFR_UNLIKELY (!mpfr_fits_intmax_p (f, rnd)))
|
||||||
|
{
|
||||||
|
@@ -46,20 +47,24 @@
|
||||||
|
if (MPFR_IS_ZERO (f))
|
||||||
|
return (intmax_t) 0;
|
||||||
|
|
||||||
|
- /* determine the precision of intmax_t */
|
||||||
|
- for (r = MPFR_INTMAX_MIN, prec = 0; r != 0; r /= 2, prec++)
|
||||||
|
+ /* Determine the precision of intmax_t. |INTMAX_MIN| may have one
|
||||||
|
+ more bit as an integer, but in this case, this is a power of 2,
|
||||||
|
+ thus fits in a precision-prec floating-point number. */
|
||||||
|
+ for (r = MPFR_INTMAX_MAX, prec = 0; r != 0; r /= 2, prec++)
|
||||||
|
{ }
|
||||||
|
- /* Note: though INTMAX_MAX would have been sufficient for the conversion,
|
||||||
|
- we chose INTMAX_MIN so that INTMAX_MIN - 1 is always representable in
|
||||||
|
- precision prec; this is useful to detect overflows in MPFR_RNDZ (will
|
||||||
|
- be needed later). */
|
||||||
|
|
||||||
|
- /* Now, r = 0. */
|
||||||
|
+ MPFR_ASSERTD (r == 0);
|
||||||
|
+
|
||||||
|
+ MPFR_SAVE_EXPO_MARK (expo);
|
||||||
|
|
||||||
|
mpfr_init2 (x, prec);
|
||||||
|
mpfr_rint (x, f, rnd);
|
||||||
|
MPFR_ASSERTN (MPFR_IS_FP (x));
|
||||||
|
|
||||||
|
+ /* The flags from mpfr_rint are the wanted ones. In particular,
|
||||||
|
+ it sets the inexact flag when necessary. */
|
||||||
|
+ MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
|
||||||
|
+
|
||||||
|
if (MPFR_NOTZERO (x))
|
||||||
|
{
|
||||||
|
mp_limb_t *xp;
|
||||||
|
@@ -67,15 +72,15 @@
|
||||||
|
|
||||||
|
xp = MPFR_MANT (x);
|
||||||
|
sh = MPFR_GET_EXP (x);
|
||||||
|
- MPFR_ASSERTN ((mpfr_prec_t) sh <= prec);
|
||||||
|
+ MPFR_ASSERTN ((mpfr_prec_t) sh <= prec + 1);
|
||||||
|
if (MPFR_INTMAX_MIN + MPFR_INTMAX_MAX != 0
|
||||||
|
- && MPFR_UNLIKELY ((mpfr_prec_t) sh == prec))
|
||||||
|
+ && MPFR_UNLIKELY ((mpfr_prec_t) sh > prec))
|
||||||
|
{
|
||||||
|
/* 2's complement and x <= INTMAX_MIN: in the case mp_limb_t
|
||||||
|
has the same size as intmax_t, we cannot use the code in
|
||||||
|
the for loop since the operations would be performed in
|
||||||
|
unsigned arithmetic. */
|
||||||
|
- MPFR_ASSERTN (MPFR_IS_NEG (x) && (mpfr_powerof2_raw (x)));
|
||||||
|
+ MPFR_ASSERTN (MPFR_IS_NEG (x) && mpfr_powerof2_raw (x));
|
||||||
|
r = MPFR_INTMAX_MIN;
|
||||||
|
}
|
||||||
|
else if (MPFR_IS_POS (x))
|
||||||
|
@@ -117,6 +122,8 @@
|
||||||
|
|
||||||
|
mpfr_clear (x);
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_FREE (expo);
|
||||||
|
+
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/get_ui.c mpfr-3.1.6-b/src/get_ui.c
|
||||||
|
--- mpfr-3.1.6-a/src/get_ui.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/get_ui.c 2017-10-26 13:55:51.208013252 +0000
|
||||||
|
@@ -30,6 +30,7 @@
|
||||||
|
mpfr_t x;
|
||||||
|
mp_size_t n;
|
||||||
|
mpfr_exp_t exp;
|
||||||
|
+ MPFR_SAVE_EXPO_DECL (expo);
|
||||||
|
|
||||||
|
if (MPFR_UNLIKELY (!mpfr_fits_ulong_p (f, rnd)))
|
||||||
|
{
|
||||||
|
@@ -44,10 +45,16 @@
|
||||||
|
for (s = ULONG_MAX, prec = 0; s != 0; s /= 2, prec ++)
|
||||||
|
{ }
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_MARK (expo);
|
||||||
|
+
|
||||||
|
/* first round to prec bits */
|
||||||
|
mpfr_init2 (x, prec);
|
||||||
|
mpfr_rint (x, f, rnd);
|
||||||
|
|
||||||
|
+ /* The flags from mpfr_rint are the wanted ones. In particular,
|
||||||
|
+ it sets the inexact flag when necessary. */
|
||||||
|
+ MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
|
||||||
|
+
|
||||||
|
/* warning: if x=0, taking its exponent is illegal */
|
||||||
|
if (MPFR_IS_ZERO(x))
|
||||||
|
s = 0;
|
||||||
|
@@ -61,5 +68,7 @@
|
||||||
|
|
||||||
|
mpfr_clear (x);
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_FREE (expo);
|
||||||
|
+
|
||||||
|
return s;
|
||||||
|
}
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/get_uj.c mpfr-3.1.6-b/src/get_uj.c
|
||||||
|
--- mpfr-3.1.6-a/src/get_uj.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/get_uj.c 2017-10-26 13:55:51.208013252 +0000
|
||||||
|
@@ -35,6 +35,7 @@
|
||||||
|
uintmax_t r;
|
||||||
|
mpfr_prec_t prec;
|
||||||
|
mpfr_t x;
|
||||||
|
+ MPFR_SAVE_EXPO_DECL (expo);
|
||||||
|
|
||||||
|
if (MPFR_UNLIKELY (!mpfr_fits_uintmax_p (f, rnd)))
|
||||||
|
{
|
||||||
|
@@ -50,12 +51,18 @@
|
||||||
|
for (r = MPFR_UINTMAX_MAX, prec = 0; r != 0; r /= 2, prec++)
|
||||||
|
{ }
|
||||||
|
|
||||||
|
- /* Now, r = 0. */
|
||||||
|
+ MPFR_ASSERTD (r == 0);
|
||||||
|
+
|
||||||
|
+ MPFR_SAVE_EXPO_MARK (expo);
|
||||||
|
|
||||||
|
mpfr_init2 (x, prec);
|
||||||
|
mpfr_rint (x, f, rnd);
|
||||||
|
MPFR_ASSERTN (MPFR_IS_FP (x));
|
||||||
|
|
||||||
|
+ /* The flags from mpfr_rint are the wanted ones. In particular,
|
||||||
|
+ it sets the inexact flag when necessary. */
|
||||||
|
+ MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
|
||||||
|
+
|
||||||
|
if (MPFR_NOTZERO (x))
|
||||||
|
{
|
||||||
|
mp_limb_t *xp;
|
||||||
|
@@ -76,6 +83,8 @@
|
||||||
|
|
||||||
|
mpfr_clear (x);
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_FREE (expo);
|
||||||
|
+
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/get_z.c mpfr-3.1.6-b/src/get_z.c
|
||||||
|
--- mpfr-3.1.6-a/src/get_z.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/get_z.c 2017-10-26 13:55:51.208013252 +0000
|
||||||
|
@@ -29,6 +29,7 @@
|
||||||
|
int inex;
|
||||||
|
mpfr_t r;
|
||||||
|
mpfr_exp_t exp;
|
||||||
|
+ MPFR_SAVE_EXPO_DECL (expo);
|
||||||
|
|
||||||
|
if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (f)))
|
||||||
|
{
|
||||||
|
@@ -41,6 +42,8 @@
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_MARK (expo);
|
||||||
|
+
|
||||||
|
exp = MPFR_GET_EXP (f);
|
||||||
|
/* if exp <= 0, then |f|<1, thus |o(f)|<=1 */
|
||||||
|
MPFR_ASSERTN (exp < 0 || exp <= MPFR_PREC_MAX);
|
||||||
|
@@ -50,6 +53,11 @@
|
||||||
|
MPFR_ASSERTN (inex != 1 && inex != -1); /* integral part of f is
|
||||||
|
representable in r */
|
||||||
|
MPFR_ASSERTN (MPFR_IS_FP (r));
|
||||||
|
+
|
||||||
|
+ /* The flags from mpfr_rint are the wanted ones. In particular,
|
||||||
|
+ it sets the inexact flag when necessary. */
|
||||||
|
+ MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
|
||||||
|
+
|
||||||
|
exp = mpfr_get_z_2exp (z, r);
|
||||||
|
if (exp >= 0)
|
||||||
|
mpz_mul_2exp (z, z, exp);
|
||||||
|
@@ -57,5 +65,7 @@
|
||||||
|
mpz_fdiv_q_2exp (z, z, -exp);
|
||||||
|
mpfr_clear (r);
|
||||||
|
|
||||||
|
+ MPFR_SAVE_EXPO_FREE (expo);
|
||||||
|
+
|
||||||
|
return inex;
|
||||||
|
}
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/mpfr.h mpfr-3.1.6-b/src/mpfr.h
|
||||||
|
--- mpfr-3.1.6-a/src/mpfr.h 2017-09-07 11:36:44.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/mpfr.h 2017-10-26 13:55:51.232013138 +0000
|
||||||
|
@@ -27,7 +27,7 @@
|
||||||
|
#define MPFR_VERSION_MAJOR 3
|
||||||
|
#define MPFR_VERSION_MINOR 1
|
||||||
|
#define MPFR_VERSION_PATCHLEVEL 6
|
||||||
|
-#define MPFR_VERSION_STRING "3.1.6"
|
||||||
|
+#define MPFR_VERSION_STRING "3.1.6-p1"
|
||||||
|
|
||||||
|
/* Macros dealing with MPFR VERSION */
|
||||||
|
#define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/version.c mpfr-3.1.6-b/src/version.c
|
||||||
|
--- mpfr-3.1.6-a/src/version.c 2017-09-07 11:36:44.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/version.c 2017-10-26 13:55:51.232013138 +0000
|
||||||
|
@@ -25,5 +25,5 @@
|
||||||
|
const char *
|
||||||
|
mpfr_get_version (void)
|
||||||
|
{
|
||||||
|
- return "3.1.6";
|
||||||
|
+ return "3.1.6-p1";
|
||||||
|
}
|
||||||
111
rev11982.patch
Normal file
111
rev11982.patch
Normal file
@ -0,0 +1,111 @@
|
|||||||
|
diff -Naurd mpfr-3.1.6-a/PATCHES mpfr-3.1.6-b/PATCHES
|
||||||
|
--- mpfr-3.1.6-a/PATCHES 2017-12-15 12:37:44.074256548 +0000
|
||||||
|
+++ mpfr-3.1.6-b/PATCHES 2017-12-15 12:37:44.146256304 +0000
|
||||||
|
@@ -0,0 +1 @@
|
||||||
|
+root
|
||||||
|
diff -Naurd mpfr-3.1.6-a/VERSION mpfr-3.1.6-b/VERSION
|
||||||
|
--- mpfr-3.1.6-a/VERSION 2017-10-26 13:55:51.236013121 +0000
|
||||||
|
+++ mpfr-3.1.6-b/VERSION 2017-12-15 12:37:44.142256319 +0000
|
||||||
|
@@ -1 +1 @@
|
||||||
|
-3.1.6-p1
|
||||||
|
+3.1.6-p2
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/mpfr.h mpfr-3.1.6-b/src/mpfr.h
|
||||||
|
--- mpfr-3.1.6-a/src/mpfr.h 2017-10-26 13:55:51.232013138 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/mpfr.h 2017-12-15 12:37:44.142256319 +0000
|
||||||
|
@@ -27,7 +27,7 @@
|
||||||
|
#define MPFR_VERSION_MAJOR 3
|
||||||
|
#define MPFR_VERSION_MINOR 1
|
||||||
|
#define MPFR_VERSION_PATCHLEVEL 6
|
||||||
|
-#define MPFR_VERSION_STRING "3.1.6-p1"
|
||||||
|
+#define MPFR_VERSION_STRING "3.1.6-p2"
|
||||||
|
|
||||||
|
/* Macros dealing with MPFR VERSION */
|
||||||
|
#define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/root.c mpfr-3.1.6-b/src/root.c
|
||||||
|
--- mpfr-3.1.6-a/src/root.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/root.c 2017-12-15 12:37:44.118256398 +0000
|
||||||
|
@@ -107,6 +107,11 @@
|
||||||
|
MPFR_RET_NAN;
|
||||||
|
}
|
||||||
|
|
||||||
|
+ /* Special case |x| = 1. Note that if x = -1, then k is odd
|
||||||
|
+ (NaN results have already been filtered), so that y = -1. */
|
||||||
|
+ if (mpfr_cmpabs (x, __gmpfr_one) == 0)
|
||||||
|
+ return mpfr_set (y, x, rnd_mode);
|
||||||
|
+
|
||||||
|
/* General case */
|
||||||
|
|
||||||
|
/* For large k, use exp(log(x)/k). The threshold of 100 seems to be quite
|
||||||
|
@@ -188,6 +193,14 @@
|
||||||
|
Assume all special cases have been eliminated before.
|
||||||
|
In the extended exponent range, overflows/underflows are not possible.
|
||||||
|
Assume x > 0, or x < 0 and k odd.
|
||||||
|
+ Also assume |x| <> 1 because log(1) = 0, which does not have an exponent
|
||||||
|
+ and would yield a failure in the error bound computation. A priori, this
|
||||||
|
+ constraint is quite artificial because if |x| is close enough to 1, then
|
||||||
|
+ the exponent of log|x| does not need to be used (in the code, err would
|
||||||
|
+ be 1 in such a domain). So this constraint |x| <> 1 could be avoided in
|
||||||
|
+ the code. However, this is an exact case easy to detect, so that such a
|
||||||
|
+ change would be useless. Values very close to 1 are not an issue, since
|
||||||
|
+ an underflow is not possible before the MPFR_GET_EXP.
|
||||||
|
*/
|
||||||
|
static int
|
||||||
|
mpfr_root_aux (mpfr_ptr y, mpfr_srcptr x, unsigned long k, mpfr_rnd_t rnd_mode)
|
||||||
|
@@ -219,7 +232,8 @@
|
||||||
|
mpfr_log (t, absx, MPFR_RNDN);
|
||||||
|
/* t = log|x| * (1 + theta) with |theta| <= 2^(-w) */
|
||||||
|
mpfr_div_ui (t, t, k, MPFR_RNDN);
|
||||||
|
- expt = MPFR_GET_EXP (t);
|
||||||
|
+ /* No possible underflow in mpfr_log and mpfr_div_ui. */
|
||||||
|
+ expt = MPFR_GET_EXP (t); /* assumes t <> 0 */
|
||||||
|
/* t = log|x|/k * (1 + theta) + eps with |theta| <= 2^(-w)
|
||||||
|
and |eps| <= 1/2 ulp(t), thus the total error is bounded
|
||||||
|
by 1.5 * 2^(expt - w) */
|
||||||
|
diff -Naurd mpfr-3.1.6-a/src/version.c mpfr-3.1.6-b/src/version.c
|
||||||
|
--- mpfr-3.1.6-a/src/version.c 2017-10-26 13:55:51.232013138 +0000
|
||||||
|
+++ mpfr-3.1.6-b/src/version.c 2017-12-15 12:37:44.142256319 +0000
|
||||||
|
@@ -25,5 +25,5 @@
|
||||||
|
const char *
|
||||||
|
mpfr_get_version (void)
|
||||||
|
{
|
||||||
|
- return "3.1.6-p1";
|
||||||
|
+ return "3.1.6-p2";
|
||||||
|
}
|
||||||
|
diff -Naurd mpfr-3.1.6-a/tests/troot.c mpfr-3.1.6-b/tests/troot.c
|
||||||
|
--- mpfr-3.1.6-a/tests/troot.c 2017-01-01 01:39:09.000000000 +0000
|
||||||
|
+++ mpfr-3.1.6-b/tests/troot.c 2017-12-15 12:37:44.118256398 +0000
|
||||||
|
@@ -405,6 +405,26 @@
|
||||||
|
mpfr_clears (x, y1, y2, (mpfr_ptr) 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
+static void
|
||||||
|
+bug20171214 (void)
|
||||||
|
+{
|
||||||
|
+ mpfr_t x, y;
|
||||||
|
+ int inex;
|
||||||
|
+
|
||||||
|
+ mpfr_init2 (x, 805);
|
||||||
|
+ mpfr_init2 (y, 837);
|
||||||
|
+ mpfr_set_ui (x, 1, MPFR_RNDN);
|
||||||
|
+ inex = mpfr_root (y, x, 120, MPFR_RNDN);
|
||||||
|
+ MPFR_ASSERTN (inex == 0);
|
||||||
|
+ MPFR_ASSERTN (mpfr_cmp_ui (y, 1) == 0);
|
||||||
|
+ mpfr_set_si (x, -1, MPFR_RNDN);
|
||||||
|
+ inex = mpfr_root (y, x, 121, MPFR_RNDN);
|
||||||
|
+ MPFR_ASSERTN (inex == 0);
|
||||||
|
+ MPFR_ASSERTN (mpfr_cmp_si (y, -1) == 0);
|
||||||
|
+ mpfr_clear (x);
|
||||||
|
+ mpfr_clear (y);
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
int
|
||||||
|
main (void)
|
||||||
|
{
|
||||||
|
@@ -415,6 +435,7 @@
|
||||||
|
|
||||||
|
tests_start_mpfr ();
|
||||||
|
|
||||||
|
+ bug20171214 ();
|
||||||
|
exact_powers (3, 1000);
|
||||||
|
special ();
|
||||||
|
bigint ();
|
||||||
Loading…
x
Reference in New Issue
Block a user