On 22.09.2015 17:12, Tim Janik wrote:
> Hey Stefan,
>
> I've taken a look at the g++4-.8 build error on Ubuntu-14.04 you reported.
> Turns out I don't need a 14.04 docker containe rto reproduce this, my
> Ubuntu-15.04
> also ships g++-4.8.real (Ubuntu 4.8.4-1ubuntu15) 4.8.4.
>
> It looks like g++-4.8 has problems with C++11 "delegate constructors", even
> though g++-4.7
> should already have gotten full support:
> https://gcc.gnu.org/projects/cxx0x.html
>
> Attached is a stupid workaround that compiles rcore/aida.cc.
Hm, bad news here.
G++-4.9 chokes on the workaround for g++-4.8, so I cannot apply a fix like this
to master.
I don't currently have an idea what approach would work for both compiler
versions, suggestions welcome...
CXX aida.lo
In file included from aida.cc:2:0:
aida.hh: In instantiation of 'Rapicorn1509::Aida::Any::Any(V&&) [with V =
Rapicorn1509::Aida::Fix1; typename std::enable_if<(!
std::is_base_of<Rapicorn1509::Aida::Any, typename std::remove_reference<
<template-parameter-1-1> >::type>::value), bool>::type <anonymous> = 1u]':
aida.cc:325:14: required from here
aida.hh:285:41: error: constructor delegates to itself
284ff:
/// Initialize Any and set its contents from @a value.
template<class V, REQUIRES< !::std::is_base_of< Any, typename
std::remove_reference<V>::type >::value > = true> inline
explicit Any (V &&value) : Any (Fix1()) { set (::std::forward<V>
(value)); }
--
Yours sincerely,
Tim Janik
https://testbit.eu/timj/
Free software author and speaker.
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