An exception is an event or an error that arises during the execution of a program i.e. during run–time. The occurrence of an exception in a program disrupts the normal flow of instructions. So to handle such errors, we use exception handlers. If we do not handle the exception properly then the program may terminate. … Read more
A string is a sequence of characters that is an object of std::string class in C++. Memory to a string is allocated dynamically that is we can assign memory during runtime as required. Various operations are performed on a string such as concatenation, comparison, conversion, etc. C++ supports two types of string in a program. C-style character … Read more
As you have studied in C preprocessor before, C++ preprocessor also has the same exact concept of it with a change in coding. As the “pre” means beforehand, similarly it means processing something before passing it on further. The preprocessor is a program that processes the source program before it is passed to the compiler. … Read more
Suppose there is a function called abc() in your code and you are also using some library that has the function with the same name as abc(). Now while executing these functions, the compiler will not know which one to execute among two abs() functions. In such cases namespace comes into action. A namespace is … Read more
Till now, we have seen the use of iostream standard library that provides us with cin and cout methods to take input and print output respectively. Here we will learn about another library to handle files. Files are used to store the data permanently in the storage device and a standard C++ library called fstream allows us … Read more
An enumeration is a user-defined type that consists of a set of named integral constants. These constants are fixed constant. The keyword enum is used to define these data types. Syntax of enums enum enum_name{const1, const2, ……. }; enum_name: Name of the enum given by the user. const1, const2 : These are the value of … Read more
The relation of structure and function in C++ is that just like any other argument passed in a function, a structure can also be passed. Passing structure to function in C++ We can pass and access the structure to function as an argument in a program. It is similar to the way we pass a … Read more
A pointer in C++ can also be created for a user-defined type like structure. It is similar to those pointers that point to the native data types such as int, float, etc. Visit pointers and structures to learn more about them. Creating pointer for structures: We create a pointer for structure in the same way … Read more
In the C/C++ programming language, the structure is user-defined data types that allow us to store the combination of different data types together. All the different data type variables are represented by a single name. Unlike an array that holds the data of the same type, the structure holds the data of different types in … Read more
Static is a keyword in C++ that is when used with different types gives different meanings. static keyword can be used with variables in a function or class or with the static members of a class such as Class objects and Functions in a class. When is used with any of the mentioned above, it … Read more