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Is there any overhead to declaring a variable within a loop? (C++)
...Assignment operator is usually defined as copy construct into tmp followed by swap (to be exception safe) followed by destroy tmp. Thus assignment operator is not that different to construction/destroy cycle above. See stackoverflow.com/questions/255612/… for example of typical assignment operator...
Change bootstrap navbar collapse breakpoint without using LESS
...: Bootstrap 4 Navbar Example
You can also use a custom breakpoint (???px) by adding a little CSS. For example, here's 1300px..
@media (min-width: 1300px){
.navbar-expand-custom {
flex-direction: row;
flex-wrap: nowrap;
justify-content: flex-start;
}
.navbar-expa...
How do I manipulate a variable whose name conflicts with PDB commands?
...sual interface for PDB which separates commands from variable manipulation by design.
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When to use Windows Workflow Foundation? [closed]
Some things are easier to implement just by hand (code), but some are easier through WF. It looks like WF can be used to create (almost) any kind of algorithm. So (theoretically) I can do all my logic in WF, but it's probably a bad idea to do it for all projects.
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Including jars in classpath on commandline (javac or apt)
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Note for Windows users, the jars should be separated by ; and not :.
for example:
javac -cp external_libs\lib1.jar;other\lib2.jar;
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Cannot import the keyfile 'blah.pfx' - error 'The keyfile may be password protected'
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I was running into this problem as well.
I was able to resolve the issue by running sn -i <KeyFile> <ContainerName> (installs key pair into a named container).
sn is usually installed as part of a Windows SDK. For example C:\Program Files (x86)\Microsoft SDKs\Windows\v8.0A\bin\NETFX...
How to use multiple arguments for awk with a shebang (i.e. #!)?
... in programming languages like C, where it is easy to accidentally mess up by forgetting to pass the invoked program name as part of the argument array to execve and similar functions, and if people habitually forget to protect against it, it can also end up being the last step in a maliciously expl...
Python multiprocessing pool.map for multiple arguments
...answer for recent versions of Python (since 3.3) was first described below by J.F. Sebastian.1 It uses the Pool.starmap method, which accepts a sequence of argument tuples. It then automatically unpacks the arguments from each tuple and passes them to the given function:
import multiprocessing
from...
Correct way to quit a Qt program?
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QApplication is derived from QCoreApplication and thereby inherits quit() which is a public slot of QCoreApplication, so there is no difference between QApplication::quit() and QCoreApplication::quit().
As we can read in the documentation of QCoreApplication::quit() it "tells th...
Creating .pem file for APNS?
...at I did, From:blog.boxedice.com and "iPhone Advanced Projects" chapter 10 byJoe Pezzillo.
With the aps_developer_identity.cer in the keychain:
Launch Keychain Access from your local Mac and from the login keychain, filter by the Certificates category. You will see an expandable option called “...