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Should I learn C before learning C++? [closed]
...ediate C++ programmers tend to write C/C++.That is true whether or not you started with C or started with C++.
If you know C first, then that is good plus to learning C++. You will start with knowing a chunk of the language. If you do not know C first then there is no point focusing on a differen...
Returning the product of a list
... using "int" until it overflows 32 bits; Python 3 will use "long" from the start. (2) Python 3.0 was a "proof of concept". Upgrade to 3.1 ASAP!
– John Machin
Jan 20 '10 at 22:30
...
Python decorators in classes
...):
def _decorator(foo):
def magic( self ) :
print "start magic"
foo( self )
print "end magic"
return magic
@_decorator
def bar( self ) :
print "normal call"
test = Test()
test.bar()
This avoids the call to self to access th...
What's the best practice for putting multiple projects in a git repository? [closed]
... orphaned branches idea but the branches don't need to be orphaned. Simply start all the projects from the same empty directory state.
Start all projects from one committed empty directory
Don't expect wonders from this solution. As I see it, you are always going to have annoyances with untracked ...
Turning a Comma Separated string into individual rows
...) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E4
),
cteStart(N1) AS (--==== This returns N+1 (starting position of each "element" just once for each delimiter)
SELECT 1 UNION ALL
SELECT t.N+1 FROM cteTally t WHERE SUBSTRING(@pString,t.N,1) = @pDe...
Regular expression to match numbers with or without commas and decimals in text
...
EDIT: Since this has gotten a lot of views, let me start by giving everybody what they Googled for:
#ALL THESE REQUIRE THE WHOLE STRING TO BE A NUMBER
#For numbers embedded in sentences, see discussion below
#### NUMBERS AND DECIMALS ONLY ####
#No commas allowed
#Pass: (100...
How does the HyperLogLog algorithm work?
...ng a stream of random integers, see an integer which binary representation starts with some known prefix, there is a higher chance that the cardinality of the stream is 2^(size of the prefix).
That is, in a random stream of integers, ~50% of the numbers (in binary) starts with "1", 25% starts with ...
Trim spaces from start and end of string
I am trying to find a way to trim spaces from the start and end of the title string. I was using this, but it doesn't seem to be working:
...
How can I count the number of matches for a regex?
...ount();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete example:
import java.util.regex.*;
class Test {
...
How can I wait for a thread to finish with .NET?
...eadDone;
Thread thread1 = new Thread(worker.Run);
thread1.Start();
_count = 1;
}
void HandleThreadDone(object sender, EventArgs e)
{
// You should get the idea this is just an example
if (_count == 1)
{
ThreadWorker worker = ...