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STL中map容器使用自定义key类型报错详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...l(143) : error C2784: “bool std::operator <(const std::_Revranit<_RanIt,_Base> &,const std::_Revranit<_RanIt2,_Base2> &)”: 无法从“const a”为“const std::_Revranit<_RanIt,_Base> &”推导 模板 参数
1> f:\vs2008\vc\include\xutility(2046) : 参见“std::operator <”的声...
Converting pixels to dp
...
@MuhammadBabar This is because 160 dpi (mdpi) is the baseline desity from which other densities are calculated. hdpi for instance is considered to be 1.5x the density of mdpi which is really just another way of saying 240 dpi. See Zsolt Safrany's answer below for all densities....
Prefer composition over inheritance?
...this object be usable by code which expects objects of (what would be) the base type". If the answer is yes, the object must inherit. If no, then it probably should not. If I had my druthers, languages would provide a keyword to refer to "this class", and provide a means of defining a class which...
JSONP with ASP.NET Web API
...er.Write(callback + "(");
writer.Flush();
base.WriteToStreamAsync(type, value, stream, content, transportContext).Wait();
writer.Write(")");
writer.Flush();
});
}
else
{
return base.Writ...
AngularJS - How can I do a redirect with a full page load?
...s.org/">link</a>
Links starting with '/' that lead to a different base path when base is defined
Example: <a href="/not-my-base/link">link</a>
Using javascript:
The $location service allows you to change only the URL; it does not allow you to reload the page. When you need to...
How can I create a directly-executable cross-platform GUI app using Python?
...re are many, but the most popular that I've seen in wild are:
Tkinter - based on Tk GUI toolkit (de-facto standard GUI library for python, free for commercial projects)
WxPython - based on WxWidgets (popular, free for commercial projects)
Qt using the PyQt bindings or Qt for Python. The former is...
What's the best three-way merge tool? [closed]
...rial and others support three-way merges (combining mine, theirs, and the "base" revision) and support graphical tools to resolve conflicts.
...
Changing overflow icon in the action bar
...ve to add it to the main Theme declaration.
<resources>
<!-- Base application theme. -->
<style name="Your.Theme" parent="@android:style/Theme.Holo">
<!-- Pointer to Overflow style ***MUST*** go here or it will not work -->
<item name="android:acti...
What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
... is very easy and automatic, the same site is in the same time SPI or page based for SEO (or when JavaScript is disabled for accessibility). With other web frameworks you can ever follow the double site approach, one site is SPI based and another page based for SEO, for instance Twitter uses this "d...
Does a view exist in ASP.NET MVC?
...ew != null)
{
return result;
}
return base.FindView(context);
}
...
}
Then in your action simply return an instance of your custom view:
public ActionResult Index()
{
return new CustomViewResult();
}
...