What does 'using namespace std' mean in C++?

Asked by Last Modified  

3 Answers

Learn C Language +2 C++ Language iOS Development

Follow 2
Answer

Please enter your answer

Ranjith N

"Transforming your struggles into success"

`using namespace std` in C++ allows direct access to the standard library's features (like `cout`, `cin`) without needing to prefix them with `std::`.
Comments
Dislike Bookmark

C language Faculty (online Classes )

The std namespace in C++ contains many standard library components, including data types, functions, and objects. When you write using namespace std;, you're essentially telling the compiler to consider all the names in the std namespace as if they're in the global namespace.
Comments
Dislike Bookmark

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

using namespace std; allows the use of names from the C++ Standard Library without needing to prefix them with std::.
Comments
Dislike Bookmark

View 1 more Answers

Related Questions

Can we have if inside else-if or else in C programming language?
Yes it is possible to do so. The if... else if..... else statements support one other inside themselves... so...
Kirthi
What is meant by "bit masking"?
For example if you want to know if third bit is 1 or not for an int x then you can mask all other bits and just check the third one: (n & 0x04) != 0 means 3rd bit is not zero, 0x04 is the bit mask
Kiran
0 0
6
How can you be sure that a program follows the ANSI C standard?
The ANSI C standard provides a predefined symbol named __STDC__ that is set to 1 when the compiler is enforcing strict ANSI standard conformance. If you want your programs to be 100 percent ANSI conformant,...
Vibha
How much I should charge for 10th to 12th level student and for C language for B.tech student for Bangalore. I am staying near BTM only.
Rs. 3000.
Mayur
How do I add two large integer numbers in C?
We have long int datatype in c programming so use it
Krishan
0 0
6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

How to write shared library program using C Programming?
Library Name : hellofilename : hello.c#include void Hello(){ printf("Hello World .. How are you 1\n");}======================================Header File:hello.h#ifndef __HELLO_H#define __HELLO_Hvoid Hello(void);#endif===============================Application...

Sankar S

0 0
0
C Program-Temperature [conversion from farenheit to degree celsius]
//WAP to convert temperture from farenheit into degree celsius //Header files#include<stdio.h>#include<conio.h> //Main functrion void main(){ //Variable declaration of type float float...

Salim Ahmed Ansari

0 0
0
Why C is a Language and not a database?
When I interviewed a candidate, I raised this question many times, but I have not got the answer correctly. To under why C is a language and not a database, it is good to understand why our communication...

Vihanga Embedsoft

0 0
0
INTRODUCTION TO PROGRAMMING LANGUAGES
Language is a medium for communication. If we want to perform anything with another person, we can know the human language as a human being. Similarly, if we want to perform anything with a computer, we...

Duggineni Srinivasa Rao

0 0
0
Programming Practice Technique
Any Programming Language required an Algorithm. Algorithm - It is the finite set of instructions in which each and every instruction has the meaning, instructions are not ambiguous and all the instructions...

Phanindra Oruganti

1 0
0

Recommended Articles

Lasya Infotech: An educational Training...

Lasya Infotech is a Hyderabad based IT training institute founded in 2016 by O Venkat. Believing in his innovation, passion and persistence and with a diverse blend of experience, he started his brainchild to deliver exemplary professional courses to aspiring candidates by honing their skills. Ever since the institute envisions...

Read full article >

Brilliant Academy, a reputed B. Tech Tuition...

Brilliant Academy is one of the reputed institutes for B.Tech tuition classes. This institute is specialised in delivering quality tuition classes for B.E, Engineering - all streams and Engineering diploma courses. Incorporated in 2012, Brillant Academy is a brainchild of Mr Jagadeesh. The main motto of the academy is to...

Read full article >

8 Hottest IT Careers of 2014!

Whether it was the Internet Era of 90s or the Big Data Era of today, Information Technology (IT) has given birth to several lucrative career options for many. Though there will not be a “significant" increase in demand for IT professionals in 2014 as compared to 2013, a “steady” demand for IT professionals is rest assured...

Read full article >

Make a Career as a BPO Professional

Business Process outsourcing (BPO) services can be considered as a kind of outsourcing which involves subletting of specific functions associated with any business to a third party service provider. BPO is usually administered as a cost-saving procedure for functions which an organization needs but does not rely upon to...

Read full article >

Find C Language Classes near you
C Language Classes in Bangalore
C Language Classes in Hyderabad
C Language Classes in Delhi
C Language Classes in Pune
C Language Classes in Chennai
C Language Classes in Mumbai
C Language Classes in Kolkata
C Language Classes in Noida
C Language Classes in Gurgaon
C Language Classes in Ghaziabad

Looking for C Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you