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When should we use mutex and when should we use semaphore
... to sleep till you release the mutex.
Spinlock:
Use a spinlock when you really want to use a mutex but your thread is not allowed to sleep.
e.g.: An interrupt handler within OS kernel must never sleep. If it does the system will freeze / crash. If you need to insert a node to globally shared linke...
Resize HTML5 canvas to fit window
How can I automatically scale the HTML5 <canvas> element to fit the page?
15 Answers
...
Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
... its BeanFactory#getBean(String name, Object... args) method which states
Allows for specifying explicit constructor arguments / factory method
arguments, overriding the specified default arguments (if any) in the
bean definition.
Parameters:
args arguments to use if creating a prototype using expl...
Should functions return null or an empty object?
...
Returning null is usually the best idea if you intend to indicate that no data is available.
An empty object implies data has been returned, whereas returning null clearly indicates that nothing has been returned.
Additionally, returning a nul...
The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
... v.end(); ++it) //v is some [std] container
{
//..
}
Or, more generally,
//good : auto increases readability here
for(auto it = std::begin(v); it != std::end(v); ++it)//v could be array as well
{
//..
}
But when the type is not very well-known and infrequently used , then I think ...
Bootstrap combining rows (rowspan)
...mentation number of times and I can see nesting columns where you can basically nest columns within a column but I cannot locate
the capability of combining rows into one and have it aligned with column next to the uncombined rows.
...
What is the difference between HTML tags and ?
...k element
span is an inline element.
This means that to use them semantically, divs should be used to wrap sections of a document, while spans should be used to wrap small portions of text, images, etc.
For example:
<div>This a large main division, with <span>a small bit</span>...
What exactly is RESTful programming?
...
An architectural style called REST (Representational State Transfer) advocates that web applications should use HTTP as it was originally envisioned. Lookups should use GET requests. PUT, POST, and DELETE requests should be used for mutation, creati...
Determine a string's encoding in C#
...ply 8-bit Encoding and you have the Encoding used to decode it, you can usually get the bytes back without any corruption, though.
– Nyerguds
Jan 27 '18 at 13:44
...
CMake: How to build external projects and include their targets
...roject A's import file since it's only created once Project A has been installed.
If you want to include Project A's import file, you'll have to install Project A manually before invoking Project B's CMakeLists.txt - just like any other third-party dependency added this way or via find_file / find_...