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What does the restrict keyword mean in C++?
...paper, it's interesting and worth the time.
Edit
I also found that IBM's AIX C/C++ compiler supports the __restrict__ keyword.
g++ also seems to support this as the following program compiles cleanly on g++:
#include <stdio.h>
int foo(int * __restrict__ a, int * __restrict__ b) {
retu...
How can I create a self-signed cert for localhost?
... Also you can automate the process completely by adding -subj '/CN=localhost' to the openssl arguments.
– Félix Saparelli
Jan 3 '16 at 7:16
8
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When should I write the keyword 'inline' for a function/method?
When should I write the keyword inline for a function/method in C++?
15 Answers
15
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string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
...code data. As always, premature
optimization may be evil, but it is also fun.
Reference : Here
Check the source code (Reference Source .NET Framework 4.6.2)
IsNullorEmpty
[Pure]
public static bool IsNullOrEmpty(String value) {
return (value == null || value.Length == 0);
}
IsNullOrWhit...
Why are hexadecimal numbers prefixed with 0x?
...d parse these as octal, mangling the number before storing. To add to the fun, one popular database product would silently switch back to decimal parsing if the number contained an 8 or 9.
– Basic
Nov 24 '15 at 19:45
...
javascript: Clear all timeouts?
...egers.
So you may clear all timeouts like so:
var id = window.setTimeout(function() {}, 0);
while (id--) {
window.clearTimeout(id); // will do nothing if no timeout with id is present
}
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Can I call a base class's virtual function if I'm overriding it?
... // ...
void printStuff() {
Foo::printStuff(); // calls base class' function
}
};
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what is the basic difference between stack and queue?
... of the queue and when one leaves they leave from the front of the queue.
Fun fact: the British refer to lines of people as a Queue
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Does Python support short-circuiting?
...hort-circuiting behavior in operator and, or:
Let's first define a useful function to determine if something is executed or not. A simple function that accepts an argument, prints a message and returns the input, unchanged.
>>> def fun(i):
... print "executed"
... return i
...
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What is the proper way to use the node.js postgresql module?
...obally, like this:
const pgp = require('pg-promise')(/*options*/);
const cn = {
host: 'localhost', // server name or IP address;
port: 5432,
database: 'myDatabase',
user: 'myUser',
password: 'myPassword'
};
// alternative:
// const cn = 'postgres://username:password@host:port/d...