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Why does SIGPIPE exist?
...en the write fails with EPIPE, not beforehand - in fact one safe way to avoid SIGPIPE without changing global signal dispositions is to temporarily mask it with pthread_sigmask, perform the write, then perform sigtimedwait (with zero timeout) to consume any pending SIGPIPE signal (which is sent to t...
Django: “projects” vs “apps”
...complex "product" I'm getting ready to build using Django. I'm going to avoid using the terms "project" and "application" in this context, because I'm not clear on their specific meaning in Django.
...
xtreme toolkit pro——CXTPReportControl控件教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...添加一个自定义控件，将该控件的class属性改为XTPReport，ID改为;IDC_REPORTCTRL_LIST。
（2）添加一个自定义变量：CXTPReportControl m_wndReportCtrl;
（3）将控件和变量联系起来，在对话框初始化函数OnInitDialog()中添加如下代码：
m_wndReport...
What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
...file.
Config mode (install)
<package>Config.cmake file located outside and produced by install
command of other project (Foo for example).
foo library:
> cat CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
project(Foo)
add_library(foo Foo.hpp Foo.cpp)
install(FILES Foo.hpp DESTINAT...
Proper SCSS Asset Structure in Rails
...clude this sheet somewhere in your css imports, it will then not only override the browser default styles, but also any styles defined in all css files that were loaded before it. This goes the same for variables and mixins.
After seeing a presentation by Roy Tomeij at Euruko2012 I decided for the ...
What is Cache-Control: private?
...er your question about why caching is working, even though the web-server didn't include the headers:
Expires: [a date]
Cache-Control: max-age=[seconds]
The server kindly asked any intermediate proxies to not cache the contents (i.e. the item should only be cached in a private cache, i.e. only o...
When to make a type non-movable in C++11?
I was surprised this didn't show up in my search results, I thought someone would've asked this before, given the usefulness of move semantics in C++11:
...
std::vector versus std::array in C++
...t grows and shrinks automatically if elements are added or removed. It provides all the hooks (begin(), end(), iterators, etc) that make it work fine with the rest of the STL. It also has several useful methods that let you perform operations that on a normal array would be cumbersome, like e.g. ins...
What is the correct answer for cout
...<(std::operator<<(std::cout, a++), a);
C++ guarantees that all side effects of previous evaluations will have been performed at sequence points. There are no sequence points in between function arguments evaluation which means that argument a can be evaluated before argument std::operator...
How does the const constructor actually work?
...ly initialize fields to other compile-time constants, so the
right-hand sides are limited to "compile-time constant
expressions"[1]. And it must be prefixed with "const" - otherwise you
just get a normal constructor that happens to satisfy those
requirements. That is perfectly fine, it's jus...