Hi,
On Oct 3, 2017 10:33, "Philipp Klaus Krause" <p...@spth.de> wrote:
Am 01.10.2017 um 23:40 schrieb alvin albrecht:
>
> I have a couple of compile issues using vs2015 with the current version
> 10024.
>
> (1)
> In sdcc/src/SDCCralloc.hpp line 618, the compiler complains that there
> is an attempt to use deleted operator=.
> Line 591 gives the option to use alternative code and if I set the IF to
> 0, the compile is fine.
>
> C:\Program Files (x86)\Microsoft Visual Studio
> 14.0\VC\include\xutility(458): error C2280:
> 'assignments_introduce_instruction::inserter_t
> &assignments_introduce_instruction::inserter_t::operator =(const
> assignments_introduce_instruction::inserter_t &)': attempting to
> reference a deleted function
>
> 2> C:\Projects\z80\z88dk\zsdcc\sdcc\src\SDCCralloc.hpp(618): note:
> compiler has generated
> 'assignments_introduce_instruction::inserter_t::operator =' here
>
> 2> C:\Program Files (x86)\Microsoft Visual Studio
> 14.0\VC\include\algorithm(3211): note: see reference to function
> template instantiation '_Iter &std::_Rechecked<_OutIt,_OutIt>(_Iter
> &,_UIter)' being compiled
I don't think I know C++ well enough to really see what's going on here.
But it seems GCC 7 doesn't complain about that code, even when using
-pedantic --std=c++11 -Wall.
So maybe we just make the alternative code the default for Microsoft
Visual C++?
To me this looks as if Microsoft generates the operator=(iterator_t &rhs)
for our local struct as deleted, possibly because we do define some
constructors and/or operator=() overloads. Manually providing an
implementation of said (copy-)assignment operator - copying all fields from
rhs to *this - might do the trick...
The copy assignment operator is likely required for the (unused) return
value of set_intersection().
Best regards,
Raphael
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