web design

[zapshe]

That has nothing to do with web design but I suppose.

int x; //Declaration 

int x = 10; //Assignment + Declaration

x = 20; //Assignment 

With a declaration, you're simply telling the compiler that you plan on using that variable later on. An assignment actually gives the variable data to hold.

[jonnin]

for a function, the definition and declaration are distinct:

void foo();

void foo()
{
code();
}

for a variable, I am not sure this concept applies (in c++). If it does, I have never needed to acknowledge it.

[JLBorges]

#include <iostream>

extern int a ; // declaration

int main()
{
    extern int b ; // declaration

    std::cout << a+b << '\n' ; // 68
    // note: header <iostream> contains the declaration of std::cout
    // see: https://en.cppreference.com/w/cpp/header/iostream#Synopsis
}

int a = 23 ; // definition
int b = 45 ; // definition 

[salem c]

Another fake profile with the silly vacuous question easily answered with a google search, but with the all important spammy URL in the profile.

[zapshe]

Another fake profile with the silly vacuous question easily answered with a google search, but with the all important spammy URL in the profile.

He must be legit, didn't you see his bio?

[Ganado]

Obvious spam is obvious, should probably be removed. someone feel free to do it... but it looks like the profile is too old.

I also removed anand's post because it's literally just copy-paste w/ advertising profile. This is the whole "spam bait + reply" that is more rare than other types of spam but still obvious once you've seen enough.

Also, related: Pay attention to random profiles that will bump topics that are 2 weeks+ old to say inane garbage.