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Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?
...true after reading the end of the stream. It does not indicate, that the next read will be the end of the stream.
Consider this (and assume then next read will be at the end of the stream):
while(!inStream.eof()){
int data;
// yay, not end of stream yet, now read ...
inStream >> data;
...
ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术
... ØMQ遵循端对端原理，而且划分自身栈为逐跳层（以"X"开头的套接字类型笨拙地表示）和端对端层（不以“X”开头的套接字类型）。注意这与上面的TCP/IP图类似：
类似于TCP/IP,逐跳层负责路由，而端对端层可以提供其他...
Why is a 3-way merge advantageous over a 2-way merge?
...
Very detailed and useful explanation
– Kaneg
Oct 26 '16 at 6:24
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show 3 more comments
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What is std::move(), and when should it be used?
...ject, to enable moving from it.
It's a new C++ way to avoid copies. For example, using a move constructor, a std::vector could just copy its internal pointer to data to the new object, leaving the moved object in an moved from state, therefore not copying all the data. This would be C++-valid.
Tr...
Is it possible to make a type only movable and not copyable?
... that is, when you define a new type it doesn't implement Copy unless you explicitly implement it for your type:
struct Triplet {
one: i32,
two: i32,
three: i32
}
impl Copy for Triplet {} // add this for copy, leave it out for move
The implementation can only exist if every type conta...
How is set() implemented?
...the keys being the members of the set), with some
optimization(s) that exploit this lack of values
So basically a set uses a hashtable as its underlying data structure. This explains the O(1) membership checking, since looking up an item in a hashtable is an O(1) operation, on average.
If you ...
What is the difference between concurrency and parallelism?
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Turn a number into star rating display using jQuery and CSS
...span.stars span {
display: block;
background: url(stars.png) 0 -16px repeat-x;
width: 80px;
height: 16px;
}
span.stars span {
background-position: 0 0;
}
Image
(source: ulmanen.fi)
Note: do NOT hotlink to the above image! Copy the file to your own server and use it ...
JavaScript inheritance: Object.create vs new
In JavaScript what is the difference between these two examples:
4 Answers
4
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NVIDIA vs AMD: GPGPU performance
I'd like to hear from people with experience of coding for both. Myself, I only have experience with NVIDIA.
10 Answers
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