All the things I code

On February 22 2011 11:01 D4L[invd] wrote:


fixed for you :D get with the times!

using namespace std;

On February 22 2011 11:56 b3h47pte wrote:


Lol wut.

using namespace std;

:x

On February 22 2011 12:45 Phrost wrote:


supposedly using namespace std; is bad or something.


I use it because i can....


But today i had to program blackjack and nested while loops were making my brain hurt.

also if you want to be super cute you can use \n instead of endl

On February 22 2011 13:38 D4L[invd] wrote:


Actually good point; should've used \n because you ended with quotes, it would've been better style. Also, using using namespace std; is preferred because when you use using namespace std;, you import all the names like cout and endl. This takes unnecessary time and space; it's unnecessary since you rarely need all of it.
While this may not matter with just one file since these days, computers are fast enough; alot of programs contain many files and if each of them have using namespace std;, it gets laggy.
Also, when you use using namespace std;, there will be alot of variable names that become unavailable. such as "count".
Finally, and most largely, you have to use the resolution scope operator (: when you decide to make your own class or add to a standard class. for example, you want to make your own string class.

class string {
...
}

Later when you declare a string variable with

string myString;

If you have used using namespace std; at the top, it will most likely cause a compiler error because the program does not know which string you are talking about. In general, using the resolution scope operator is alot safer.

If you must be lazy , A better way to use using namespace std is to just do things like

using std::cout;
using std::endl;

this solves all the problems above and all you have to do is add the line at the top and you can use it as a shortcut.