Why "using namespace std ;" is used in c++ please help me iam beginner to c++.


17th Oct 2020, 7:17 AM
BALAKUMAR N - avatar
2 Answers
+ 3
it just namespace.. so that u dont have to write "std::cout", "std::endl"
17th Oct 2020, 7:18 AM
Lily Mea
Lily Mea - avatar
Namespaces are used to organize code into logical groups and prevent naming collisions while including multiple library headers. For example suppose you include a header containing a function named strcpy().But there already exists a function strcpy() in the <string> header of std namespace .so you have to define a namespace e.g xyz:: strcpy () to prevent errors
17th Oct 2020, 12:56 PM
Aditya rout
Aditya rout - avatar