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C++ Language > Learn C++ Language > What is iostream.h?
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What is iostream.h?

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Software Developer, Expertise in Java/J2ee Technology.

It is a header file, which is needed to be included in C++ program to perform input output operations.
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IOSREAM.H IS A FILE NAME IN WHICH I=INPUT,O=OUTPUT,STREAM=SEQUENCE OF BYTES AND .H IS THE EXTENSION WHICH MEANS THE HEADER FILE.
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Tutor

C++ input/output streams are primarily defined by iostream , a header file that is part of the C++ standard library
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Computer Programming Languages

The IOStream library was packaged with C++ for basic operations of input and output. The original IOStream library was nothing more than wrappers classes that called the stdio C library. The IOStream library was introduced to give an object oriented view of input and output. The IOStream library(header...
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The IOStream library was packaged with C++ for basic operations of input and output. The original IOStream library was nothing more than wrappers classes that called the stdio C library. The IOStream library was introduced to give an object oriented view of input and output. The IOStream library(header file iostream.h) defines three objects called cin, cout, and cerr. The cin object is an instance of the a class called istream. This class overrides the bit-wise right shift operator >> to perform inputs into various datatypes from standard input. The cout and cerr are instances of the class ostream. read less
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In our programs, we use some builtin functionalities for standard input and output. We directly call them to be used in our program, we do not define it in our main file, we just include it at top of our main file. iostream.h is a header file that contains builtin functionalities for standard input...
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In our programs, we use some builtin functionalities for standard input and output. We directly call them to be used in our program, we do not define it in our main file, we just include it at top of our main file. iostream.h is a header file that contains builtin functionalities for standard input , output. you can create your own header files and you can use them in your program. read less
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Teacher

Its a header file in C++ which contains input/output datatypes and variables in C++.
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btech mtech

Input related to our keyboard and output has a relation with display devices such as LED, LCD.
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It provides the different Input Output related functions
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Perl Developer | Perl Trainer

The header iostream.h is a non-standard header and does not exist on all platforms. As a matter of fact it does not exist on my system (using g++ and the GNU libstdc++). So any code using it would simply not compile on my system. The iostream.h header used to be common before C++ was first standardized...
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The header iostream.h is a non-standard header and does not exist on all platforms. As a matter of fact it does not exist on my system (using g++ and the GNU libstdc++). So any code using it would simply not compile on my system. The iostream.h header used to be common before C++ was first standardized in 1998. read less
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Java Trainer with 8 years of Realtime Development Experience

It is a header file which is located in c++ installation direction. It has the code for input and output stream like cout and cin. like .txt, .mp3, .flv " .h " also a file extension. hope you got the answer
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