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Can you split a stream into two streams?
...
Not exactly. You can't get two Streams out of one; this doesn't make sense -- how would you iterate over one without needing to generate the other at the same time? A stream can only be operated over once.
However, if you want ...
How to deal with floating point number precision in JavaScript?
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What is the best way to get all the divisors of a number?
...actors)
f = [0] * nfactors
while True:
yield reduce(lambda x, y: x*y, [factors[x][0]**f[x] for x in range(nfactors)], 1)
i = 0
while True:
f[i] += 1
if f[i] <= factors[i][1]:
break
f[i] = 0
i += 1
...
How to convert list of tuples to multiple lists?
...n conjunction with the * operator can be used to unzip a list:
Specific example:
>>> zip((1,3,5),(2,4,6))
[(1, 2), (3, 4), (5, 6)]
>>> zip(*[(1, 2), (3, 4), (5, 6)])
[(1, 3, 5), (2, 4, 6)]
Or, if you really want lists:
>>> map(list, zip(*[(1, 2), (3, 4), (5, 6)]))
[[...
Generic deep diff between two objects
...Function(obj2)) {
throw 'Invalid argument. Function given, object expected.';
}
if (this.isValue(obj1) || this.isValue(obj2)) {
return {
type: this.compareValues(obj1, obj2),
data: obj1 === undefined ? obj2 : obj1
};
}
var diff = {...
Why use static_cast(x) instead of (int)x?
...that the object is actually the descendant that you claim it is, by means external to the language (like a flag in the object). A dynamic_cast<>() is safe as long as the result is checked (pointer) or a possible exception is taken into account (reference).
A reinterpret_cast<>() (or a ...
Fitting empirical distribution to theoretical ones with Scipy (Python)?
...least SSE between the distribution's histogram and the data's histogram.
Example Fitting
Using the El Niño dataset from statsmodels, the distributions are fit and error is determined. The distribution with the least error is returned.
All Distributions
Best Fit Distribution
Example Code
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How to use base class's constructors and assignment operator in C++?
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You can explicitly call constructors and assignment operators:
class Base {
//...
public:
Base(const Base&) { /*...*/ }
Base& operator=(const Base&) { /*...*/ }
};
class Derived : public Base
{
int additional...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...的按钮在下面
if(m_tabsheet.m_hWnd)
m_tabsheet.ShowWindow(SW_MAXIMIZE);//显示选项卡
//加入标签，标签名由各个子对话框的标题栏决定
m_tabsheet.AddPage(&m_skatch);
//用Create来创建一个属性页
m_tabsheet.Create(this, WS_CHILD | WS_VISIBLE, WS_EX_CONTROLPAR...
Why does struct alignment depend on whether a field type is primitive or user-defined?
...ess that's a multiple of 8 bytes in 64-bit mode. It occurs even when you explicitly apply the [StructLayout(LayoutKind.Sequential)] attribute. That is not supposed to happen.
You can see it by making the struct members public and appending test code like this:
var test = new RefAndTwoInt32Wr...