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Find out if string ends with another string in C++
...
Simply compare the last n characters using std::string::compare:
#include <iostream>
bool hasEnding (std::string const &fullString, std::string const &ending) {
if (fullString.length() >= ending.length()) {
return (0 == ...
How to profile a bash shell script slow startup?
...e set -x later and set +x earlier (or bracket several sections of interest selectively).
Although it's not as fine-grained as GNU date's nanoseconds, Bash 5 includes a variable which gives the time in microseconds. Using it saves you from spawning an external executable for every line and works on ...
Is it better to reuse a StringBuilder in a loop?
...0) is far and away the most efficient answer. StringBuilder is backed by a char array and is mutable. At the point .toString() is called, the char array is copied and is used to back an immutable string. At this point, the mutable buffer of StringBuilder can be re-used, simply by moving the insertio...
Convert character to ASCII code in JavaScript
How can I convert a character to its ASCII code using JavaScript?
10 Answers
10
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Regex: match everything but specific pattern
...oo):
Lookahead-based solution for NFAs:
^(?!foo).*$
^(?!foo)
Negated character class based solution for regex engines not supporting lookarounds:
^(([^f].{2}|.[^o].|.{2}[^o]).*|.{0,2})$
^([^f].{2}|.[^o].|.{2}[^o])|^.{0,2}$
a string ending with a specific pattern (say, no world. at the end):...
How to get the type of a variable in MATLAB?
...gt; a = 'Hi'
a =
Hi
>> class(b)
ans =
double
>> class(a)
ans =
char
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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
...tification handler code here
""m_button.EnableWindow(TRUE);
}
// RadioSelect Button的点击响应函数
void CPrintDlg::OnRadioSelect()
{
""// TODO: Add your control notification handler code here
""m_button.EnableWindow(FALSE);
}
也可以通过一个Check Button的点击来改变，...
How to convert a Binary String to a base 10 integer in Java
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This might work:
public int binaryToInteger(String binary) {
char[] numbers = binary.toCharArray();
int result = 0;
for(int i=numbers.length - 1; i>=0; i--)
if(numbers[i]=='1')
result += Math.pow(2, (numbers.length-i - 1));
return result;
}
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C library function to perform sort
...return 1;
if (f < s) return -1;
return 0;
}
int main(int argc, char* argv[])
{
int x[] = {4,5,2,3,1,0,9,8,6,7};
qsort (x, sizeof(x)/sizeof(*x), sizeof(*x), comp);
for (int i = 0 ; i < 10 ; i++)
printf ("%d ", x[i]);
return 0;
}
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Find duplicate lines in a file and count how many time each line was duplicated?
...d mentioned below to achieve this
Get-Content .\file.txt | Group-Object | Select Name, Count
Also we can use the where-object Cmdlet to filter the result
Get-Content .\file.txt | Group-Object | Where-Object { $_.Count -gt 1 } | Select Name, Count
...