Dec 27, 2013 In this c / cpp programming video tutorials / lecture for beginners video series, you will learn how to perform console output using cout function in cplus plus language with example. All star auto tuned to soviet anthem.
Dev C++ Cout
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C++Object Oriented ProgrammingProgramming
Dev c programming structure. cin, cout, cerr, and clog are streams that handle standard inputs and standard outputs. These are stream objects defined in iostream header file.
std::cin is an object of class istream that represents the standard input stream oriented to narrow characters (of type char). It corresponds to the C stream stdin. The standard input stream is a source of characters determined by the environment. It is generally assumed to be input from an external source, such as the keyboard or a file.
std::cout 3utools windows 10 64 bit. is an object of class ostream that represents the standard output stream oriented to narrow characters (of type char). It corresponds to the C stream stdout. The standard output stream is the default destination of characters determined by the environment. This destination may be shared with more standard objects (such as cerr or clog).
The object cerr controls output to a stream buffer associated with the object stderr, declared in <cstdio>. It is used for outputting error to the standard output stream.
Note − All the objects declared in this header share a peculiar property - you can assume they are constructed before any static objects you define, in a translation unit that includes <iostream>. Equally, you can assume that these objects are not destroyed before the destructors for any such static objects you define. (The output streams are, however, flushed during program termination.) Therefore, you can safely read from or write to the standard streams before program startup and after program termination.
C++ Cout Int
You can use these stream objects as follows −
Example
Then save this program to hello.cpp file. Finally navigate to the saved location of this file in the terminal/cmd and compile it using −
Run it using −
Output
If you give it the input 15, this will give the output −
Originally released by Bloodshed Software, but abandoned in 2006, it has recently been forked by Orwell, including a choice of more recent compilers. It can be downloaded from:
http://orwelldevcpp.blogspot.com
Installation
Run the downloaded executable file, and follow its instructions. The default options are fine.Support for C++11
By default, support for the most recent version of C++ is not enabled. It shall be explicitly enabled by going to:Tools -> Compiler Options
Here, select the 'Settings' tab, and within it, the 'Code Generation' tab. There, in 'Language standard (-std)' select 'ISO C++ 11':
Ok that. You are now ready to compile C++11!
Compiling console applications
To compile and run simple console applications such as those used as examples in these tutorials it is enough with opening the file with Dev-C++ and hitF11
.As an example, try:
File -> New -> Source File
(or Ctrl+N
)There, write the following:
Then:
File -> Save As..
(or Ctrl+Alt+S
)And save it with some file name with a
.cpp
extension, such as example.cpp
.Now, hitting
F11
should compile and run the program.If you get an error on the type of
x
, the compiler does not understand the new meaning given to auto
since C++11. Please, make sure you downloaded the latest version as linked above, and that you enabled the compiler options to compile C++11 as described above.