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Why must a lambda expression be cast when supplied as a plain Delegate parameter
...c = Lambda<Func<int, string>>.Cast;
// Use
var f1 = c(x => x.ToString());
var f2 = c(x => "Hello!");
var f3 = c(x => (x + x).ToString());
}
}
share
|
...
记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...nd / -name ".DS_Store" -delete
管理Dashboard里的widgets
按F4或fn-F12调出Dashboard，点左下角的+号，就可以添加和删除widgets了。
将Dashboard里的widget放在桌面。
先在终端输入如下代码：
defaults write com.apple.dashboard devmode YES
killall Dock
然...
What is a correct mime type for docx, pptx etc?
...e-delta-tree", "wg": "application/vnd.pmi.widget", "qxd": "application/vnd.quark.quarkxpress", "esf": "application/vnd.epson.esf", "msf": "application/vnd.epson.msf", "ssf": "application/vnd.epson.ssf", "qam": "application/vnd.epson.quickanime", "qfx": "application/vnd.intu.qfx", "qt": "video/quickt...
What is the curiously recurring template pattern (CRTP)?
...u aim to do with virtual methods.
http://coliru.stacked-crooked.com/a/2d27f1e09d567d0e
template <typename T>
struct Base {
void foo() {
(static_cast<T*>(this))->foo();
}
};
struct Derived : public Base<Derived> {
void foo() {
cout << "derived foo" <<...
Fast Linux File Count for a large number of files
...owing performance numbers (in real clock time):
ls -1 | wc - 0:01.67
ls -f1 | wc - 0:00.14
find | wc - 0:00.22
dircnt | wc - 0:00.04
That last one, dircnt, is the program compiled from the above source.
EDIT 2016-09-26
Due to popular demand, I've re-written this program to be recursive, so i...
Why don't C++ compilers define operator== and operator!=?
...omparison, if the programmer wanted a pointer comparison, he'd write (&f1 == &f2)
– Viktor Sehr
Sep 1 '10 at 9:07
63
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The purpose of Model View Projection Matrix
...
Hi Tommy, can u suggest any sample code for pan functionality in Opengl Es2.0 in Android using this Model View Projection Matrix if Possible. I refereed more links, i could not get any clear idea.if any sample code means, its easy to understand for me..
...
How to display gpg key details without importing it?
...ying to guess what you mean ...
pub rsa8192 2012-12-25 [SC]
0D69E11F12BDBA077B3726AB4E1F799AA4FF2279
uid Jens Erat (born 1988-01-19 in Stuttgart, Germany)
uid Jens Erat <jens.erat@fsfe.org>
uid Jens Erat <jens.erat@uni-konstanz.de>
uid Jens...
Is there an equivalent of CSS max-width that works in HTML emails?
... 800px wide, its not max-width but it works better than letting the table span across the entire window.
<!--[if gte mso 9]>
<style>
#tableForOutlook {
width:800px;
}
</style>
<![endif]-->
<table style="width:98%;max-width:800px">
<!--[if gte mso 9]>
<tab...
From inside of a Docker container, how do I connect to the localhost of the machine?
...isc pfifo_fast state UP group default qlen 1000
link/ether 66:32:13:f0:f1:e3 brd ff:ff:ff:ff:ff:ff
inet 172.17.1.192/16 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::6432:13ff:fef0:f1e3/64 scope link
valid_lft forever preferred_lft forever
Here my ...