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Standard Template Library in C++
Encapsulates a memory allocation and deallocation strategy. Every standard library component that may need to allocate or release storage, from std::string, std::vector, and every container except std::array, to std::shared_ptr and std::function, does so...
Exceptions provide a way to react to exceptional circumstances (like runtime errors) in our program by transferring control to special functions called handlers. To catch exceptions we must place a portion of code...
Just as we can define function templates, we can also define class templates. The general form of a generic class declaration is shown here: Syntax Example Output
Templates are a feature of the C++ programming language that allow functions and classes to operate with generic types. This allows a function or class to work on many different data types without being...
Generic programming is a style of computer programming in which algorithms are written in terms of to-be-specified-later types that are then instantiated when needed for specific types provided as parameters. In very simple...
C++ strings provide an alternative to the s[n] notation: the at( ) member. These two idioms produce the same result in C++. There is an important difference is when you try to reference an...
C++ provides several ways to compare strings, and each has their advantages. The simplest to use are the non member overloaded operator functions operator ==, operator != operator >, operator =, and operator
The find member is also useful for detecting the occurrence of a sequence of characters in a string. Example : Output : found on 3 position found on 10 position found on 18 position
Searches a string for a specified character or group of characters and returns the starting position of the first occurrence found or -1 if no match is found.
The various functions that are being used to search strings are as follows : string find function What/how it finds find( ) Searches a string for a specified character or group of characters and...
One of the most delightful discoveries awaiting a C programmer learning about C++ string handling is how simply strings can be combined and appended using operator+ and operator+=. These operators make combining strings syntactically...
Consider the following example for various operations on strings
Creating and initializing strings is a straightforward proposition, and fairly flexible as well. In the example shown below : the first string, blankString, is declared but contains no initial value. Unlike a C...
First, C++ string objects associate the array of characters which constitute the string with methods useful for managing and operating on it, a C++ string object knows its starting location in memory, its content,...