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C/C++ Struct vs Class
...bjects. X AVOID defining a struct unless the type has all of the following characteristics: 1. It logically represents a single value, similar to primitive types (int, double, etc.). 2. It has an instance size under 16 bytes. 3. It is immutable.
– Abhijeet
De...
Database cluster and load balancing
..., a transfer of funds from one bank account to another, even involving multiple changes such as debiting one account and crediting another, is a single transaction.
– fizampou
Nov 3 '18 at 3:52
...
String vs. StringBuilder
... .NET are immutable). It works by keeping an internal buffer, an array of char. Calling Append() or AppendLine() adds the string to the empty space at the end of the char array; if the array is too small, it creates a new, larger array, and copies the buffer there. So in the example above, String...
Can I call memcpy() and memmove() with “number of bytes” set to zero?
...values, as described in 7.1.4. On such a call, a
function that locates a character finds no occurrence, a function that compares two
character sequences returns zero, and a function that copies characters copies zero
characters.
So the answer is no; the check is not necessary (or yes; you ca...
Initializing a member array in constructor initializer
...e about the following case, but some compilers do allow it.
struct A {
char foo[6];
A():foo("hello") { } /* valid? */
};
See this GCC PR for further details.
Do C++0x initializer lists solve the problem?
Yes, they do. However your syntax is invalid, I think. You have to use braces dir...
What's the difference between a proxy server and a reverse proxy server? [closed]
... news, so it controls access to news instead, by blocking sites such as wikipedia.org. See TOR or FreeNet.
b) The administrator of Z has blocked X.
Examples:
The administrator of Z has noticed hacking attempts coming from X, so the administrator has decided to block X's IP address (and/or netr...
Enabling HTTPS on express.js
...s a certificate and a key. The bundle certificate is a file that holds multiple certificates, node requires that you break those certificates into separate elements of an array.
var express = require('express');
var https = require('https');
var fs = require('fs');
var options = {...
How do I show the value of a #define at compile-time?
...ment with the argument enclosed in double quotes. Thus:
#define STR(x) #x
char *s1 = "abc";
char *s2 = STR(abc);
will assign identical values to s1 and s2. If you run gcc -E you can see this in the output. Perhaps STR would be better named something like ENQUOTE.
This solves the problem of putti...
Python str vs unicode types
...from being able to set Unicode codes in unicode strings using the escape char \ ?:
4 Answers
...
How to split strings across multiple lines in CMake?
...
Also if want to use indentation and are 80 char limit bound then another way is to do like this: <code> message("This is the value of the variable: " <br> "${varValue}") </code>
– munsingh
Jun 2...