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Sort Go map values by keys
...tween runs of the program. In practice, not only is it undefined, it's actually intentionally randomized. This is because it used to be predictable, and the Go language developers didn't want people relying on unspecified behavior, so they intentionally randomized it so that relying on this behavior...
How to calculate a time difference in C++
...turns the CPU time consumed by the program. So if the program is run in parallel the time returned by the function would be the accumulated of the time spent on all CPUs, rather than the time elapsed cplusplus.com/reference/ctime/clock
– Ameer Jewdaki
Aug 3 '1...
How much size “Null” value takes in SQL Server
I have a large table with say 10 columns. 4 of them remains null most of the times. I have a query that does null value takes any size or no size in bytes. I read few articles some of them are saying :
...
How can I stop a running MySQL query?
...ofiler;
MySQL gets busy generating the Cartesian Product of the above two tables and
you soon notice that MySQL hasn't printed any output to screen (the process
state is Sending data) so you type Ctrl-C:
Ctrl-C -- sending "KILL QUERY 113240" to server ...
Ctrl-C -- query aborted.
ERROR 1317 (70100)...
Maven command to list lifecycle phases along with bound goals?
...e ${0} )
echo "Lists the goals of mvn project(s) by phase in a table";
echo
echo "Usage:";
echo " ${programName} -d|--debug -g|--goal goal -b|--build_plan build_plan [*directory]";
echo
echo " --goal The goal for t...
Why does changing 0.1f to 0 slow down performance by 10x?
...ond run the numbers are very close to zero.
Denormalized numbers are generally rare and thus most processors don't try to handle them efficiently.
To demonstrate that this has everything to do with denormalized numbers, if we flush denormals to zero by adding this to the start of the code:
_MM_...
C++11 reverse range-based for-loop
...
Actually Boost does have such adaptor: boost::adaptors::reverse.
#include <list>
#include <iostream>
#include <boost/range/adaptor/reversed.hpp>
int main()
{
std::list<int> x { 2, 3, 5, 7, 11, 13, 1...
In PHP what does it mean by a function being binary-safe?
...on. See: PHP strings
0x00 = NULL
0x04 = EOT (End of transmission)
ASCII table to see ASCII char list
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Are the shift operators () arithmetic or logical in C?
...h may lead to implementation-defined behaviour if the value is not representable in the destination type.
Left Shift
The result of E1 << E2 is E1 left-shifted E2 bit positions; vacated bits are filled with zeros. If E1 has an unsigned type, the value of the result is E1×2E2, reduced modulo o...
Download the Android SDK components for offline install
Is it possible to download the Android SDK components for offline install without using the SDK Manager?
The problem is I am behind a firewall which I have no control over and both sites download URLs seem to be blocked (throws a connection refused exception)
...