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How do you do a deep copy of an object in .NET? [duplicate]
...= new BinaryFormatter();
formatter.Serialize(ms, obj);
ms.Position = 0;
return (T) formatter.Deserialize(ms);
}
}
Notes:
Your class MUST be marked as [Serializable] for this to work.
Your source file must include the following code:
using System.Runtime.Serialization.Formatters.Bin...
How to read a text file reversely with iterator in C#
I need to process a large file, around 400K lines and 200 M. But sometimes I have to process from bottom up. How can I use iterator (yield return) here? Basically I don't like to load everything in memory. I know it is more efficient to use iterator in .NET.
...
pandas read_csv and filter columns with usecols
...andas as pd
from StringIO import StringIO
csv = r"""dummy,date,loc,x
bar,20090101,a,1
bar,20090102,a,3
bar,20090103,a,5
bar,20090101,b,1
bar,20090102,b,3
bar,20090103,b,5"""
df = pd.read_csv(StringIO(csv),
header=0,
index_col=["date", "loc"],
usecols=["date", "loc", "x"],
...
dplyr: “Error in n(): function should not be called directly”
...
120
I presume you have dplyr and plyr loaded in the same session. dplyr is not plyr. ddply is not a ...
C dynamically growing array
...lSize) {
a->array = malloc(initialSize * sizeof(int));
a->used = 0;
a->size = initialSize;
}
void insertArray(Array *a, int element) {
// a->used is the number of used entries, because a->array[a->used++] updates a->used only *after* the array has been accessed.
// Th...
Windows下 C++网络延时检测 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ndlIcmp);
}
int CPing::Ping(char* strHost)
{
u_char FAR data[4] = { 0L }; //
//unsigned long Status = 0L; //
int PingTimes = 0; //
int Received = -2; //
unsigned long Minimum = 1000000;// 最小值设置为超时值
unsigned long Maximum = 0; // 最大值设置为0
unsigne...
Simplest code for array intersection in javascript
... Ry-♦
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answered Dec 11 '09 at 3:08
Anon.Anon.
49.5k88 gold badges...
Get decimal portion of a number with JavaScript
...
Use 1, not 2.
js> 2.3 % 1
0.2999999999999998
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Best way to parse RSS/Atom feeds with PHP [closed]
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How to create NS_OPTIONS-style bitmask enumerations in Swift?
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Swift 3.0
Almost identical to Swift 2.0. OptionSetType was renamed to OptionSet and enums are written lower case by convention.
struct MyOptions : OptionSet {
let rawValue: Int
static let firstOption = MyOptions(rawValue:...