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How many levels of pointers can we have?
...tance of every one of the following limits: [...]
279 — 12 pointer, array, and function declarators (in any combinations) modifying an
arithmetic, structure, union, or void type in a declaration
The upper limit is implementation specific.
...
How do I find the caller of a method using stacktrace or reflection?
...).getStackTrace()
According to the Javadocs:
The last element of the array represents the bottom of the stack, which is the least recent method invocation in the sequence.
A StackTraceElement has getClassName(), getFileName(), getLineNumber() and getMethodName().
You will have to experimen...
How to perform a real time search and filter on a HTML table
...ecause it is quite resource consuming. Put all the refined strings into an array of objects with two fields: a reference to the <tr> DOMElement and the string. This way, on keyup() you search those strings (which is way faster) and have the corresponding rows ready to be manipulated. That firs...
How to determine the memory footprint (size) of a variable?
...
It's a terrible approximation. Every item in an array in PHP is ~80 bytes, yet strlen(serialize(array(1,2,3))) is 30.
– gsnedders
Feb 10 '13 at 22:22
2
...
Warning the user/local/mysql/data directory is not owned by the mysql user
....mysqld</string>
<key>ProgramArguments</key>
<array>
<string>/usr/local/mysql/bin/mysqld_safe</string>
<string>--user=mysql</string>
</array>
</dict>
</plist>
Save it and then:
sudo chown root:whee...
Are PHP Variables passed by value or by reference?
...ass by reference has some performance benefits or not? I'm passing a large array & by default it is pass by value. So, if I use call by reference then, will there be some performance wise benefit??? (keeping the array values unchanged during the whole process)
– Choxx
...
How do I use the includes method in lodash to check if an object is in the collection?
...17.5, without using _.includes():
Say you want to add object entry to an array of objects numbers, only if entry does not exist already.
let numbers = [
{ to: 1, from: 2 },
{ to: 3, from: 4 },
{ to: 5, from: 6 },
{ to: 7, from: 8 },
{ to: 1, from: 2 } // intentionally added d...
In C++, what is a virtual base class?
... wrong?
Imagine:
A has some basic feature.
B adds to it some kind of cool array of data (for example)
C adds to it some cool feature like an observer pattern (for example, on m_iValue).
D inherits from B and C, and thus from A.
With normal inheritance, modifying m_iValue from D is ambiguous and th...
Environment variables in Mac OS X
...aunchd.conf</string>
<key>ProgramArguments</key>
<array>
<string>sh</string>
<string>-c</string>
<string>launchctl &lt; ~/.launchd.conf</string>
</array>
<key>RunAtLoad</key>
<true/>
<...
Split string with delimiters in C
How do I write a function to split and return an array for a string with delimiters in the C programming language?
20 Answe...