C++ programming

this article is related with my previous topic , which was about c++ programming , here i m going to discuss that article more.

C++ programming

Std::cout

Standard output stream object

“Connected” to the screen

std:: specifies the "namespace" which cout belongs to

std:: can be removed by the use of using statements

with the help of using statement we can write cout instead of std::cout as we would observe in the next program.

<< 

Stream insertion operator 

Value to the right of the operator (right operand) inserted into output stream (which is connected to the screen)

std::cout << “Welcome to C++!\n”;

Indicates that a “special” character is to be output 

There are multiple ways to print text. Following are some more examples.

output 

Testing and debugging 

Bug

A mistake in a program

Debugging

Eliminating mistakes in programs

Term used when a moth caused a failed relay on the Harvard Mark 1 computer.  Grace Hopper and other programmers taped the moth in logbook stating:          “First actual case of a bug being found.”

Program errors

Syntax errors

Violation of the grammar rules of the language

Discovered by the compiler

Error messages may not always show correct location of errors

Run-time errors

Error conditions detected by the computer at run-time

Logic errors

Errors in the program’s algorithm

Most difficult to diagnose

Computer does not recognize an error

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