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Traits vs. interfaces
... class can have multiple trait inclusions - which allows the programmer to include reusable pieces - as they might if including multiple base classes.
A few things to note:
-----------------------------------------------
| Interface | Base Class |...
Compiling simple Hello World program on OS X via command line
... built on-top of GCC.
Though I prefer a slightly more verbose approach:
#include <iostream>
int main()
{
std::cout << "Hello world!" << std::endl;
}
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What is the fastest integer division supporting division by zero no matter what the result is?
...
Here are some concrete numbers, on Windows using GCC 4.7.2:
#include <stdio.h>
#include <stdlib.h>
int main()
{
unsigned int result = 0;
for (int n = -500000000; n != 500000000; n++)
{
int d = -1;
for (int i = 0; i != ITERATIONS; i++)
d &= rand();
...
pyplot axes labels for subplots
...False) or plt.grid(False) is also needed if the global plotting parameters include a (visible) grid.
– Næreen
Oct 17 '17 at 17:31
3
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How can I view the source code for a function?
...ages ship with R and their version is locked to the version of R. Examples include base, compiler, stats, and utils. As such, they are not available as separate downloadable packages on CRAN as described above. Rather, they are part of the R source tree in individual package directories under /src/l...
How to obtain a Thread id in Python?
... = ctypes.cdll.LoadLibrary('libc.so.6')
# System dependent, see e.g. /usr/include/x86_64-linux-gnu/asm/unistd_64.h
SYS_gettid = 186
def getThreadId():
"""Returns OS thread id - Specific to Linux"""
return libc.syscall(SYS_gettid)
...
Which iomanip manipulators are 'sticky'?
...to temporaily change the state then put it back by the use of an object:
#include <iostream>
#include <iomanip>
// Private object constructed by the format object PutSquareBracket
struct SquareBracktAroundNextItem
{
SquareBracktAroundNextItem(std::ostream& str)
:m_str(s...
How to get a value of an element by name instead of ID
...
$("input[name='nameGoesHere']").val();
It is a mandatory requirement to include quotes around the value, see: http://api.jquery.com/attribute-equals-selector/
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CSS media queries: max-width OR max-height
...nd here for more info from smarter people)
FOR MORE INFO
For more info (including more features that can be queried), see: https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Media_queries#Logical_operators
Understanding Media Query Terminology
Note: I needed to learn the following termino...
Is a `=default` move constructor equivalent to a member-wise move constructor?
...move constructor?
Yes. Update: Well, not always. Look at this example:
#include <iostream>
struct nonmovable
{
nonmovable() = default;
nonmovable(const nonmovable &) = default;
nonmovable( nonmovable &&) = delete;
};
struct movable
{
movable() = default;...