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Asynctask vs Thread in android
...more elucidating because it tackles reasons why not to use simple Threads. From the top of my mind, anything that needs to be tied to Activity/Service lifecycle should use AsyncTask instead, even though you need to manually "gracefully degrade" resources inside the task, at least you don't end up wi...
Difference between size_t and unsigned int?
...but that's permitted).
The purpose of size_t is to relieve the programmer from having to worry about which of the predefined types is used to represent sizes.
Code that assumes sizeof yields an unsigned int would not be portable. Code that assumes it yields a size_t is more likely to be portable.
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Adding two numbers concatenates them instead of calculating the sum
...hey are actually strings, not numbers. The easiest way to produce a number from a string is to prepend it with +:
var x = +y + +z;
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In Gradle, how do I declare common dependencies in a single place?
...cyManagement> section of the parent POM, and reference that dependency from child modules without specifying the version or scope or whatever.
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What exception classes are in the standard C++ library
...ull pointer
std::bad_weak_ptr <memory> constructing a shared_ptr from a bad weak_ptr
std::logic_error <stdexcept> errors detectable before the program executes
std::domain_error <stdexcept> parameter outside the valid range
std::future_error <future> v...
How to design a database for User Defined Fields?
...define the data domains. Don't underestimate the performance hit resulting from on-the-fly data type conversion. Such
constraints also help RDBMS query
optimizers develop more effective
plans.
Should you ever need to use foreign
keys, built-in declarative
referential
integrity is rarely out-per...
php: determine where function was called from
is there a way to find out, where a function in PHP was called from?
example:
8 Answers
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Get dimension from XML and set text size in runtime
...', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f14540293%2fget-dimension-from-xml-and-set-text-size-in-runtime%23new-answer', 'question_page');
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When does invoking a member function on a null instance result in undefined behavior?
...tly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointer does not refer to an object, therefore when we use the lvalue we have undefined behavior. The proble...
nano error: Error opening terminal: xterm-256color
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Worked for me when ran on the remove system. Connection from was OS X -> Ubuntu
– Ryan Griffith
Jul 4 '16 at 14:09
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