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What exactly is a C pointer if not a memory address?
...existing computer systems in the real world is false. Computers exist with word addressing and segment-offset addressing. Compilers still exist with support for near and far pointers. PDP-11 computers exist, with RSX-11 and the Task Builder and its overlays, in which a pointer must identify the info...
JavaScript error (Uncaught SyntaxError: Unexpected end of input)
...as trying to parse an empty JSON:
JSON.parse(stringifiedJSON);
In other words, what happened was the following:
JSON.parse("");
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What is std::promise?
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In the words of [futures.state] a std::future is an asynchronous return object ("an object that reads results from a shared state") and a std::promise is an asynchronous provider ("an object that provides a result to a shared state"...
CDC:DrawText 多行显示文本（文本自动换行） - C++ UI - 清泛IT社区，为创新赋能！
//长文本自动换行
dc.DrawText(str, &rect, DT_LEFT | DT_TOP | DT_WORDBREAK | DT_EDITCONTROL, m_pfSongTi);
函数原型：
int DrawText(
HDC hDC, // handle to DC
LPCTSTR lpString, // text to draw
int nCount,...
What is polymorphism, what is it for, and how is it used?
...ing Polymorphism in PHP, Thanks Steve Guidetti.
Polymorphism is a long word for a very simple concept.
Polymorphism describes a pattern in object oriented programming in which classes have different functionality while sharing a common interface.
The beauty of polymorphism is that the ...
Efficiency of Java “Double Brace Initialization”?
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"Probably" being the operative word. Unless measured, no statements about performance are meaningful.
– Instance Hunter
May 29 '09 at 4:00
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What is the difference between a “line feed” and a “carriage return”?
If there are these two keywords then they must have their own meaning. So I want to know what makes them different and what is their code?
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What is Mocking?
...un mock in the dictionary you will find that one of the definitions of the word is something made as an imitation.
Mocking is primarily used in unit testing. An object under test may
have dependencies on other (complex) objects. To isolate the behavior
of the object you want to replace the other ob...
When to use LinkedList over ArrayList in Java?
...removals using iterators, but only sequential access of elements. In other words, you can walk the list forwards or backwards, but finding a position in the list takes time proportional to the size of the list. Javadoc says "operations that index into the list will traverse the list from the beginni...
How to get ASCII value of string in C#
... This shows me System.Byte[]. You need to loop through the chars in the word. Not sure how you got it to work. Helped the OP though which is what matters.
– NikosV
Sep 22 '18 at 9:35
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