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apply C++17 folding expression

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This commit is contained in:
Jinhao 2017-12-20 11:53:29 +08:00
parent 9d75d15474
commit c66895ead6
2 changed files with 8 additions and 0 deletions
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6
include/nana/gui/msgbox.hpp
View File

@ -240,7 +240,11 @@ namespace nana
bool show(Args&& ... args)
{
std::vector<abstract_content*> contents;
#ifdef _nana_cxx_folding_expression
(contents.emplace_back(&args), ...);
#else
_m_fetch_args(contents, std::forward<Args>(args)...);
#endif
if (contents.empty())
return false;
@ -270,6 +274,7 @@ namespace nana
void min_width_entry_field( unsigned pixels );
private:
#ifndef _nana_cxx_folding_expression
void _m_fetch_args(std::vector<abstract_content*>&);
template<typename ...Args>
@ -278,6 +283,7 @@ namespace nana
contents.push_back(&content);
_m_fetch_args(contents, std::forward<Args>(args)...);
}
#endif
bool _m_open(std::vector<abstract_content*>&, bool modal);
private:

2
source/gui/msgbox.cpp
View File

@ -1294,8 +1294,10 @@ namespace nana
min_width_entry_field_pixels_ = pixels;
}
#ifndef _nana_cxx_folding_expression
void inputbox::_m_fetch_args(std::vector<abstract_content*>&)
{}
#endif
bool inputbox::_m_open(std::vector<abstract_content*>& contents, bool modal)
{