cpp-input-output

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iomanip setprecision() function in C++ with Examples

Last Updated: 18 February 2022

The setprecision() method of iomanip library in C++ is used to set the ios library floating point precision based on the precision specified as the parameter to this metho ...read more

setw() function in C++ with Examples

Last Updated: 14 March 2023

The setw() method of iomanip library in C++ is used to set the ios library field width based on the width specified as the parameter to this method. The setw() stands for ...read more

I/O Redirection in C++

Last Updated: 22 June 2022

In C, we could use the function freopen() to redirect an existing FILE pointer to another stream. The prototype for freopen() is given asFILE * freopen ( const char * file ...read more

cpp-input-output

cpp-file-handling

C++

What does buffer flush means in C++ ?

Last Updated: 08 October 2021

A buffer flush is the transfer of computer data from a temporary storage area to the computer's permanent memory. For instance, if we make any changes in a file, the chang ...read more

cpp-input-output

C++

Read/Write Class Objects from/to File in C++

Last Updated: 24 January 2023

Given a file "Input.txt" in which every line has values same as instance variables of a class.Read the values into the class's object and do necessary operations.Theory :T ...read more

cpp-input-output

cpp-class

C++

Basic Input / Output in C++

Last Updated: 14 September 2023

C++ comes with libraries that provide us with many ways for performing input and output. In C++ input and output are performed in the form of a sequence of bytes or more c...read more

Clearing The Input Buffer In C/C++

Last Updated: 30 October 2022

What is a buffer?A temporary storage area is called a buffer. All standard input and output devices contain an input and output buffer. In standard C/C++, streams are buff ...read more

cpp-input-output

C Language

C++

std::endl vs \n in C++

Last Updated: 19 March 2023

std::endl and \n both seem to do the same thing but there is a subtle difference between them.std::cout std::endl inserts a new line and flushes the stream(output buffer) ...read more

How to use getline() in C++ when there are blank lines in input?

Last Updated: 03 June 2022

In C++, if we need to reada few sentences from a stream, the generally preferred way is to use the getline() function as it can read string streams till it encounters a ne ...read more

Last Updated: 28 October 2020

fprintf is used to print content in file instead of stdout console.int fprintf(FILE *fptr, const char *str, ...);Example:[tabby title="C"][sourcecode language="C"]// C Pro ...read more

Last Updated: 28 June 2022

Syntax:int sprintf(char *str, const char *string,...); Return:If successful,it returns the total number of characters written excluding null-character appended in the stri ...read more

Return values of printf() and scanf() in C/C++

Last Updated: 29 November 2020

What values do the printf() and scanf() functions return ?printf() : It returns total number of Characters Printed, Or negative value if an output error or an encoding err ...read more

GFacts

cpp-input-output

C Language

C-Input and Output Quiz

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