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Why do we copy then move?
...se, there will always be a single copy performed. If you construct from a raw C string, a std::string will be constructed, then copied again: two allocations.
There is the C++03 method of taking a reference to a std::string, then swapping it into a local std::string:
struct S
{
std::string data...
Single Page Application: advantages and disadvantages [closed]
...lve a native mobile app? If yes, you are most likely going to be
feeding raw data to that native app from a server (ie JSON) and doing
client-side processing to render it, correct? So with this assertion,
you're ALREADY doing a client-side rendering model. Now the question
becomes, why shoul...
How is std::function implemented?
...(with an additional parameter that tells what to do) as to save some bytes
raw pointers are used to store the functor object, along with a function pointer in a union, so that when a function object is constructed from an function pointer, it will be stored directly in the union rather than heap spa...
How to detect if multiple keys are pressed at once using JavaScript?
...or myself in this example, the concept works just as well when working in 'raw' Javascript.
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How to draw a path on a map using kml file?
... navigationDataSet = null;
}
return navigationDataSet;
}
}
Drawing:
/**
* Does the actual drawing of the route, based on the geo points provided in the nav set
*
* @param navSet Navigation set bean that holds the route information, incl. geo pos
* @param color Color in w...
C dynamically growing array
I have a program that reads a "raw" list of in-game entities, and I intend to make an array holding an index number (int) of an indeterminate number of entities, for processing various things. I would like to avoid using too much memory or CPU for keeping such indexes...
...
Should I use Vagrant or Docker for creating an isolated environment? [closed]
... a provider directly on the host or any VM (Mac, Win). It can also spin up raw LXC if thats what someone wants (again, on the host or VM). Vagrant is interested in doing what is best to create a portable development environment, whether that means creating a VM or not.
– Mitche...
How can I improve my paw detection?
...the data for each paw with [data[x] for x in data_slices]. Instead, we'll draw a rectangle based on these slices, which takes slightly more work.
The two animations below show your "Overlapping Paws" and "Grouped Paws" example data. This method seems to be working perfectly. (And for whatever i...
Expand a random range from 1–5 to 1–7
...e copies of each integer in the interval [1, 7], plus four zeroes. So the "raw" stream of results tends to an even mixture of [1, 7] values, plus some zeroes that occur a tad more frequently than any individual allowed value. But that doesn't matter because the zeros are stripped out, leaving just a...
Secure hash and salt for PHP passwords
...nd 180 billion hashes/second (respectively).
Don't mix bcrypt and with the raw output of hash(), either use hex output or base64_encode it. (This applies to any input that may have a rogue \0 in it, which can seriously weaken security.)
Dos
Use scrypt when you can; bcrypt if you cannot.
Use PBKD...