String length c++
- how to use string class in c++
- how to implement string class in c++
- how to declare string in class c++
- define class string in c++
String library in c++.
std::string class in C++
C++ has in its definition a way to represent a sequence of characters as an object of the class. This class is called std:: string.
The string class stores the characters as a sequence of bytes with the functionality of allowing access to the single-byte character.
String vs Character Array
String | Char Array |
|---|---|
| A string is a class that defines objects that be represented as a stream of characters. | A character array is simply an array of characters that can be terminated by a null character. |
In the case of strings, memory is allocated dynamically.How to declare string in c++More memory can be allocated at run time on demand. As no memory is preallocated, no memory is wasted. | The size of the character array has to be allocated statically, more memory cannot be allocated at run time if required.
Unused allocated memory is also wasted |
| As strings are represented as objects, no array decay occurs. | There is a threat of array decay in the case of the character array. |
Strings are slower when compared to impl
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