如何摆脱 属性 网格警告？

Question

我总是收到这样的警告： https://gist.githubusercontent.com/jS5t3r/ccb8a6e3db18d5133d37986b8979baef/raw/f4750f5ac3211b0560d27b035d31542877669e07/warnings

我正在使用

• ArchLinux
• 海湾合作委员会（海合会）6.2.1 20160830
• wxwidget 3.0

我使用这些标志进行编译

WXWIDGETSFLAGS=`wx-config --gl-libs --cxxflags --libs std stc propgrid richtext` 

警告：

g++ `wx-config --gl-libs --cxxflags --libs std stc propgrid richtext`  -std=c++11 -Wall -Iinclude  source/wxwidget/GUIMemLayMgr.h source/wxwidget/gui.h source/wxwidget/GUIMemLayMgr.cpp source/wxwidget/gui.cpp  source/wxwidget/main.cpp -o output/wxwidget
In file included from /usr/include/wx-3.0/wx/propgrid/propgrid.h:26:0,
             from source/wxwidget/gui.h:31,
             from source/wxwidget/GUIMemLayMgr.h:9:
/usr/include/wx-3.0/wx/propgrid/property.h: In member function 'void  wxPGChoices::Set(const wxArrayString&, const wxArrayInt&)':
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
     if ( &values )
                  ^
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
In file included from /usr/include/wx-3.0/wx/propgrid/propgrid.h:26:0,
             from source/wxwidget/gui.h:31:
/usr/include/wx-3.0/wx/propgrid/property.h: In member function 'void wxPGChoices::Set(const wxArrayString&, const wxArrayInt&)':
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
     if ( &values )
                  ^
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
In file included from /usr/include/wx-3.0/wx/propgrid/propgrid.h:26:0,
             from source/wxwidget/gui.h:31,
             from source/wxwidget/GUIMemLayMgr.h:9,
             from source/wxwidget/GUIMemLayMgr.cpp:1:
/usr/include/wx-3.0/wx/propgrid/property.h: In member function 'void wxPGChoices::Set(const wxArrayString&, const wxArrayInt&)':
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler  can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
     if ( &values )
                  ^
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
In file included from /usr/include/wx-3.0/wx/propgrid/propgrid.h:26:0,
             from source/wxwidget/gui.h:31,
             from source/wxwidget/gui.cpp:8:
/usr/include/wx-3.0/wx/propgrid/property.h: In member function 'void   wxPGChoices::Set(const wxArrayString&, const wxArrayInt&)':
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the  compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
     if ( &values )
                  ^
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
In file included from /usr/include/wx-3.0/wx/propgrid/propgrid.h:26:0,
             from source/wxwidget/gui.h:31,
             from source/wxwidget/main.cpp:22:
/usr/include/wx-3.0/wx/propgrid/property.h: In member function 'void wxPGChoices::Set(const wxArrayString&, const wxArrayInt&)':
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]
     if ( &values )
                  ^
/usr/include/wx-3.0/wx/propgrid/property.h:1049:22: warning: the compiler can assume that the address of 'values' will always evaluate to 'true' [-Waddress]

Answer 1

我更改了包含

#include <wx/propgrid/propgrid.h>

至

#include <wx-3.0/wx/propgrid/propgrid.h>

现在一切正常。

Answer 2

在 3.0.2 之后的 Optimize wxPGChoices::Set method 提交中修复了该问题。要使用它，您需要从 git 或 3.1.0 版本获取最新的 3.0 分支 - 基本上是提交之后的任何内容。