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Structure padding and packing
...bers would have offsets, which are mod(4) == 0 on 32-bit platform. Padding is on by default. It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by compiler: for alignment of b */
int b;
char c;
char gap_1[3]; /* -"-:...
When is std::weak_ptr useful?
...ny useful use of std::weak_ptr . Can someone tell me when std::weak_ptr is useful/necessary?
13 Answers
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How can I access and process nested objects, arrays or JSON?
...has only one data type which can contain multiple values: Object. An Array is a special form of object.
(Plain) Objects have the form
{key: value, key: value, ...}
Arrays have the form
[value, value, ...]
Both arrays and objects expose a key -> value structure. Keys in an array must be num...
Relationship between SciPy and NumPy
...method executes a
from numpy import *
so that the whole numpy namespace is included into scipy when the scipy module is imported.
The log10 behavior you are describing is interesting, because both versions are coming from numpy. One is a ufunc, the other is a numpy.lib function. Why scipy is pre...
module.exports vs exports in Node.js
... database_module(cfg) {return;}
The following will work if module.exports is set.
module.exports = exports = nano = function database_module(cfg) {return;}
console
var func = require('./module.js');
// the following line will **work** with module.exports
func();
Basically node.js doesn't export t...
What does it mean if a Python object is “subscriptable” or not?
...ribes objects that are "containers", meaning they contain other objects. This includes strings, lists, tuples, and dictionaries.
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onSaveInstanceState () and onRestoreInstanceState ()
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Usually you restore your state in onCreate(). It is possible to restore it in onRestoreInstanceState() as well, but not very common. (onRestoreInstanceState() is called after onStart(), whereas onCreate() is called before onStart().
Use the put methods to store values in o...
Why use pointers? [closed]
I know this is a really basic question, but I've just started with some basic C++ programming after coding a few projects with high-level languages.
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Clone() vs Copy constructor- which is recommended in java [duplicate]
clone method vs copy constructor in java. which one is correct solution. where to use each case?
6 Answers
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Difference between PCDATA and CDATA in DTD
What is the difference between #PCDATA and #CDATA in DTD ?
6 Answers
6
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