id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13360	std::numeric_limits<multiprecision::float128> methods fail to compile in C++11 mode	b7.10110111@…	John Maddock	"The following code compiles fine in C++03 mode, but fails in C++11 mode. This happens in boost 1.66.0, but didn't happen in 1.63.0.

{{{
#include <boost/multiprecision/float128.hpp>
int main()
{
    std::numeric_limits<boost::multiprecision::float128>::min();
}
}}}

Similar problem with some other methods — those which return without explicit construction of {{{number_type}}}.

I'm compiling with g++ using the following command line:

{{{
g++ -std=c++11 boost-test.cpp -o boost-test -fext-numeric-literals -lquadmath
}}}

The compiler prints the following error:

{{{
In file included from boost-test.cpp:1:0:
/usr/include/boost/multiprecision/float128.hpp: In instantiation of ‘static std::numeric_limits<boost::multiprecision::number<boost::multiprecision::backends::float128_backend, ExpressionTemplates> >::number_type std::numeric_limits<boost::multiprecision::number<boost::multiprecision::backends::float128_backend, ExpressionTemplates> >::min() [with boost::multiprecision::expression_template_option ExpressionTemplates = (boost::multiprecision::expression_template_option)0u; std::numeric_limits<boost::multiprecision::number<boost::multiprecision::backends::float128_backend, ExpressionTemplates> >::number_type = boost::multiprecision::number<boost::multiprecision::backends::float128_backend, (boost::multiprecision::expression_template_option)0u>]’:
boost-test.cpp:4:59:   required from here
/usr/include/boost/multiprecision/float128.hpp:645:55: error: could not convert ‘3.3621031431120935062626778173217526e-4932’ from ‘__float128’ to ‘std::numeric_limits<boost::multiprecision::number<boost::multiprecision::backends::float128_backend, (boost::multiprecision::expression_template_option)0u> >::number_type {aka boost::multiprecision::number<boost::multiprecision::backends::float128_backend, (boost::multiprecision::expression_template_option)0u>}’
    static number_type (min)() BOOST_NOEXCEPT { return 3.36210314311209350626267781732175260e-4932Q; }
                                                       ^
}}}"	Bugs	new	To Be Determined	multiprecision	Boost 1.66.0	Regression			b7.10110111@…