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How can I clear or empty a StringBuilder? [duplicate]
I'm using a StringBuilder in a loop and every x iterations I want to empty it and start with an empty StringBuilder , but I can't see any method similar to the .NET StringBuilder.Clear in the documentation, just the delete method which seems overly complicated.
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Extract hostname name from string
...uld like to match just the root of a URL and not the whole URL from a text string. Given:
27 Answers
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Measuring execution time of a function in C++
...usage:
#include <iostream>
#include <algorithm>
typedef std::string String;
//first test function doing something
int countCharInString(String s, char delim){
int count=0;
String::size_type pos = s.find_first_of(delim);
while ((pos = s.find_first_of(delim, pos)) != String:...
Determine a string's encoding in C#
Is there any way to determine a string's encoding in C#?
9 Answers
9
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convert a list of objects from one type to another using lambda expression
....
List<char> c = new List<char>() { 'A', 'B', 'C' };
List<string> s = c.Select(x => x.ToString()).ToList();
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Install Application programmatically on Android
...<application
android:allowBackup="true"
android:label="@string/app_name">
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.authorityStr"
android:exported="false"
and...
Difference between class and type
...pe .
For example, should the object "Hello World!" belong to the type String or class String ? Or maybe both?
5 An...
与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处...
...含指针成员，没有复制构造函数出错
struct Node
{
Node(char *n="",int a = 0)
{
name = strdup(n);
strcpy(name,n);
age = a ;
}
~Node()
{
delete[] name;
}
char *name;
int age;
};
int main()
{
Node node1("Roger",20),node2(node1);
//pri...
How does this milw0rm heap spraying exploit work?
...code. unscape will be used to put the sequence of bytes represented of the string in the spray variable. It's valid x86 code that fills a large chunk of the heap and jumps to the start of shellcode. The reason for the ending condition is string length limitations of the scripting engine. You can't h...
How to Calculate Execution Time of a Code Snippet in C++
...without Boost (tested on macOS/iOS):
#include <chrono>
#include <string>
#include <iostream>
#include <math.h>
#include <unistd.h>
class NLTimerScoped {
private:
const std::chrono::steady_clock::time_point start;
const std::string name;
public:
NLTimerSco...