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How To Use Methods To Copy One String to Another String

How can we copy one string to another string? Here are the answers with C++ examples.

Generally, as an introduction to C++, in addition to int, float, double there is another data type, string that we use for alphanumeric variables. In C++ there are several typedefs for common character types are provided: String types are defined in header <string>.

strings are the string class for byte characters represented with string and alphanumeric characters are stored and displayed in string forms. In another terms string stores for the alphanumeric text with 1 byte chars, called ASCII chars. Strings are the instantiation of the basic_string class template that uses char as the character type. Simply we can define a string as below,

string has methods to assign, copy, align, replace or to operate with other strings. These methods can be used in all string methods with their appropriate syntax. Here are the string types defined in std namespace with their char type and C++ standard.

How to copy a string to another string in C++ with = operator

We can use ‘=’ operator to copy strings as given example below,

How to use the C++ assign() method to copy strings

We can copy string to another string with assign() method as below,

How to copy a C++ String to a Char array

We can copy a string to char array in given number of chars

Note that we can also use these methods to copy wstring in C++.

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About author

33+ years of coding with more than 30+ programming languages, mostly C++ on Windows, Android, Mac-OS, iOS, Linux and some other operating systems. Dr. Yilmaz Yoru was born in 1974, Eskisehir-Turkey. He graduated from the department of Mechanical Engineering of Eskisehir Osmangazi University in 1997. One year later he started to work in the same university as an assistant. He received his MSc and PhD degrees from the same department of the same university. He has married and he is a father of a son. Some of his interests are Programming, Thermodynamics, Fluid Mechanics and Artificial Intelligence. He also likes the graphical 2D & 3D design and high-end innovations.
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