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How do I convert a double into a string in C++?
...y:
std::string str = boost::lexical_cast<std::string>(dbl);
The Standard C++ way:
std::ostringstream strs;
strs << dbl;
std::string str = strs.str();
Note: Don't forget #include <sstream>
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How can I profile C++ code running on Linux?
... a profiler, use one of the suggested ones.
However, if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow, there's a simple way to find performance problems.
Just halt it several times, and each time look at the call stack. If there...
How to automate createsuperuser on django?
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super useful when trying to create superuser in heroku and your network blocks port 5000
– Vic
Jun 9 '16 at 5:40
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Sending POST data in Android
I'm experienced with PHP, JavaScript and a lot of other scripting languages, but I don't have a lot of experience with Java or Android.
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Increasing (or decreasing) the memory available to R processes
...rror that R
has run out of memory.
If you have R already installed and
subsequently install more RAM, you may
have to reinstall R in order to take
advantage of the additional capacity.
You may also set the amount of
available memory manually. Close R,
then right-click on your...
Javascript reduce() on Object
...u want the result as an Object ({ value: ... }), you'll have to initialize and return the object each time:
Object.keys(o).reduce(function (previous, key) {
previous.value += o[key].value;
return previous;
}, { value: 0 });
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Given an array of numbers, return array of products of all other numbers (no division)
I was asked this question in a job interview, and I'd like to know how others would solve it. I'm most comfortable with Java, but solutions in other languages are welcome.
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What does the NS prefix mean?
... code for the Cocoa frameworks came from the NeXTSTEP libraries Foundation and AppKit (those names are still used by Apple's Cocoa frameworks), and the NextStep engineers chose to prefix their symbols with NS.
Because Objective-C is an extension of C and thus doesn't have namespaces like in C++, sy...
Django FileField with upload_to determined at runtime
...or me in Django 1.7 using migrations. Ended up creating a function instead and the migration took.
– aboutaaron
Mar 18 '15 at 17:38
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Use find command but exclude files in two directories
...t to find files that end with _peaks.bed , but exclude files in the tmp and scripts folders.
6 Answers
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