大约有 15,000 项符合查询结果（耗时：0.0268秒） [XML]
Checking for NULL pointer in C/C++ [closed]
...inct.
Edit: As SoapBox points out in a comment, they are compatible with C++ classes such as auto_ptr that are objects that act as pointers and which provide a conversion to bool to enable exactly this idiom. For these objects, an explicit comparison to NULL would have to invoke a conversion to po...
How do you declare an interface in C++?
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How typical of a C++ answer that the top answer doesn't directly answer the question (though obviously the code is perfect), instead it optimizes the simple answer.
– Tim
Aug 24 '12 at 22:49
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What exactly does an #if 0 … #endif block do?
In C /C++
9 Answers
9
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Should all jquery events be bound to $(document)?
...am. I am generally for decreased initial page time. For example, if I have 200 elements on a page (and more as events happen), it's about 100 times more expensive at the initial load (since it has to add 100 event listeners) rather than if I add a singular event listener onto the parent container li...
How to create a numpy array of all True or all False?
...r2357112 supports Monicauser2357112 supports Monica
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How can I get the browser's scrollbar sizes?
....createElement('p');
inner.style.width = "100%";
inner.style.height = "200px";
var outer = document.createElement('div');
outer.style.position = "absolute";
outer.style.top = "0px";
outer.style.left = "0px";
outer.style.visibility = "hidden";
outer.style.width = "200px";
outer.sty...
Post JSON using Python Requests
...ttp://httpbin.org/post', json={"key": "value"})
>>> r.status_code
200
>>> r.json()
{'args': {},
'data': '{"key": "value"}',
'files': {},
'form': {},
'headers': {'Accept': '*/*',
'Accept-Encoding': 'gzip, deflate',
'Connection': 'close',
'C...
Why does C++ rand() seem to generate only numbers of the same order of magnitude?
In a small application written in C/C++, I am facing a problem with the rand function and maybe the seed :
9 Answers
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Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into
...solution yourself:
Here's a simple SVG:
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 0 16 16">
<text x="0" y="14">????</text>
</svg>
And here's the same SVG as a Data URI:
data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2016%2016'...
What does a colon following a C++ constructor name do? [duplicate]
What does the colon operator (":") do in this constructor? Is it equivalent to MyClass(m_classID = -1, m_userdata = 0); ?
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