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How can I pass a member function where a free function is expected?
...ction pointers. However, pointers to non-static member functions are not like normal function pointers: member functions need to be called on an object which is passed as an implicit argument to the function. The signature of your member function above is, thus
void (aClass::*)(int, int)
rather t...
Explicitly select items from a list or tuple
...rray(range(1000))
>>> myBigList[(87, 342, 217, 998, 500)]
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IndexError: invalid index
>>> myBigList[[87, 342, 217, 998, 500]]
array([ 87, 342, 217, 998, 500])
>>> myBigList[numpy.array([87, ...
How to check if a string starts with one of several prefixes?
...
hmjdhmjd
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How to wait in a batch script? [duplicate]
... so the ping command doesn't output anything to screen.
You can easily make a sleep command yourself by creating a sleep.bat somewhere in your PATH and use the above technique:
rem SLEEP.BAT - sleeps by the supplied number of seconds
@ping 192.0.2.2 -n 1 -w %1000 > nul
NOTE: The 192.0.2.x...
C++11 features in Visual Studio 2012
...had quite a bit of early C++11 support. So to summarize what is already linked to in other answers, here is what is new in Visual Studio 11 that was not part of Visual Studio 2010:
rvalue references to version 2.1 from 2.0
lambdas to version 1.1 from 1.0.
decltype to version 1.1 from 1.0(not yet a...
Immutability of Strings in Java
...ring. You can change what it points to, but not that which it points at.
Take this code, for example:
String s1 = "Hello";
String s2 = s1;
// s1 and s2 now point at the same string - "Hello"
Now, there is nothing1 we could do to s1 that would affect the value of s2. They refer to the same object - ...
SQL Server SELECT INTO @variable?
...ed Jan 28 '11 at 1:34
RichardTheKiwiRichardTheKiwi
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How to extract the hostname portion of a URL in JavaScript
...s, browser compatibility for window.location.origin is not clear. I've checked it in chrome and it returned http://sub.domain.com:port if the port is anything but 80, and http://sub.domain.com if the port is 80.
Special thanks to @torazaburo for mentioning that to me.
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How Many Seconds Between Two Dates?
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I'm taking YYYY & ZZZZ to mean integer values which mean the year, MM & NN to mean integer values meaning the month of the year and DD & EE as integer values meaning the day of the month.
var t1 = new Date(YYYY, MM, D...
Only variables should be passed by reference
Any ideas? After 2 days still stuck.
12 Answers
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