Your message dated Wed, 27 May 2009 01:33:17 -0500
with message-id <[email protected]>
and subject line not-a-bug
has caused the Debian Bug report #440178,
regarding interval problem
to be marked as done.
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440178: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=440178
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--- Begin Message ---
Package: libboost-dev
Version: 1.34.1-2
Severity: normal
--- Please enter the report below this line. ---
Hello
I try to use the numeric/interval library from boost 1.34.1.
So I created a
boost::numeric::interval<double> I(min, max);
I = tan(I);
but when I compile :
g++ -o debug/linux2/src/kappa4C_vertical_pseudoaxeengine.o -c -Wall -g
-O0 -Iinclude/hkl src/kappa4C_vertical_pseudoaxeengine.cpp
/usr/include/boost/numeric/interval/transc.hpp:
In function 'boost::numeric::interval<T, Policies> boost::numeric::tan(const
boost::numeric::interval<T, Policies>&) [with
T = double, Policies =
boost::numeric::interval_lib::policies<boost::numeric::interval_lib::rounded_math<double>,
boost::numeric::interval_lib::checking_strict<double> >]':
src/kappa4C_vertical_pseudoaxeengine.cpp:84: instantiated from
here /usr/include/boost/numeric/interval/transc.hpp:110: error: 'struct
boost::numeric::interval_lib::rounded_math<double>' has no member named
'tan_down' /usr/include/boost/numeric/interval/transc.hpp:110: error:
'struct boost::numeric::interval_lib::rounded_math<double>' has no
member named 'tan_up'
So it seems that there is no member tan_down and tan_up in the
rounded_math class.
If you do a rgrep in boost/numeric you find only reference to those
tan_down and tan_up.
pi...@grisette:/usr/include/boost/numeric$ rgrep tan_down *
interval/transc.hpp: return
I(rnd.tan_down(tmp.lower()),rnd.tan_up(tmp.upper()), true);
interval/transc.hpp: return I(rnd.atan_down(x.lower()),
rnd.atan_up(x.upper()), true);
but no definition. so something is missing in the interval library.
Have a nice day.
Frederic
--- System information. ---
Architecture: i386
Kernel: Linux 2.6.21-2-686
Debian Release: lenny/sid
500 unstable edevelop.org
500 testing ftp.fr.debian.org
500 stable wine.budgetdedicated.com
--- Package information. ---
Depends (Version) | Installed
============================-+-===========
libstdc++-dev |
--- End Message ---
--- Begin Message ---
Hi,
Upstream suggests this is working as documented [1], so I'm closing this bug.
According to the documentation at
http://www.boost.org/doc/libs/1_35_0/libs/numeric/interval/doc/rounding.htm
in the "transcendental function" section, the standard library
routines for tan, etc, do not typically satisfy the needed
rounding properties and therefore the templates which
implement them are disabled by default.
-Steve
[1] https://svn.boost.org/trac/boost/ticket/1632#comment:3
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