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Are there any smart cases of runtime code modification?
...as a time (long ago, I know), when computers had no instructions to return from a subroutine or to indirectly address memory. Self modifying code was the only way to implement subroutines, pointers and arrays.
More cases of code modification:
Many debuggers replace instructions to implement brea...
What is an uninterruptible process?
...ler is executed.
If the process is still running, it gets the return value from the system call, and it can make the same call again.
Returning early from the system call enables the user space code to immediately alter its behaviour in response to the signal. For example, terminating cleanly in r...
Programmatically obtain the phone number of the Android phone
...
how can we select first phone number automatically in android ?
– Noorul
Feb 11 at 6:04
add a comment
...
How would I get a cron job to run every 30 minutes?
...ron job is running on Mac OS X only, you may want to use launchd instead.
From Scheduling Timed Jobs (official Apple docs):
Note: Although it is still supported, cron is not a recommended solution. It has been deprecated in favor of launchd.
You can find additional information (such as the la...
Are memory leaks ever ok? [closed]
... a memory leak and it can impair your program. Future allocations can fail from this proces because I am sure you are checking that malloc returned non nil everywhere. by over using memory, such as in an embedded situation where memor is scarce this could be the difference between life and death.
...
Which Java Collection should I use?
In this question How can I efficiently select a Standard Library container in C++11? is a handy flow chart to use when choosing C++ collections.
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How do you make a HTTP request with C++?
...bution.
To get the content of an URL you do something like that (extracted from examples) :
// Edit : rewritten for cURLpp 0.7.3
// Note : namespace changed, was cURLpp in 0.7.2 ...
#include <curlpp/cURLpp.hpp>
#include <curlpp/Options.hpp>
// RAII cleanup
curlpp::Cleanup myCleanup;
...
What is 'Context' on Android?
...xt(), getContext(), getBaseContext() or this (when in a class that extends from Context, such as the Application, Activity, Service and IntentService classes).
Typical uses of context:
Creating new objects:
Creating new views, adapters, listeners:
TextView tv = new TextView(getContext());
ListAd...
Location Services not working in iOS 8
...it started returning the respective enumerations for the messages' output. From what ive found this is a known iOS 8 bug but couldnt find anything in my context for ages. Thanks a mil!
– MrOli3000
Sep 1 '14 at 15:43
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How to read a (static) file from inside a Python package?
...dule as explained in the method no 2, below.
The traditional pkg_resources from setuptools is not recommended anymore because the new method:
it is significantly more performant;
is is safer since the use of packages (instead of path-stings) raises compile-time errors;
it is more intuitive because ...