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How To Copy A Wide String to Wide Char Array In A C++ App

How can I use copy() method of std::wstring in a C++ app? How can I copy a wide string to a wide char array? Here are the answers with C++ examples.

What is a WString?

wstrings (Wide Strings) are the string class for characters that has 2 bytes that represented with wstring. In Modern C++, alphanumeric characters are stored in wide strings because of their support for characters of World languages and displayed in wstring forms. In other words, wstring stores for the alphanumeric text with 2-byte chars, called wchar_t or WChar. Wide strings are the instantiation of the basic_string class template that uses wchar_t as the character type. Simply we can define a wstring 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. We can insert a wide string into another wide string in different methods. Let’s see some of most used methods.

How to copy a wide String to a Char Array using the copy() method of wstring

and the output will be,

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

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

and the output will be,

We can define number of characters to be copied as below,

as you see we should set 0 the last character of the char array here. and the output will be,

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About author

Dr. Yilmaz Yoru has 35+ years of coding with more than 30+ programming languages, mostly C++ on Windows, Android, Mac-OS, iOS, Linux, and some other operating systems. He graduated and received his MSc and PhD degrees from the Department of Mechanical Engineering of Eskisehir Osmangazi University. He is the founder and CEO of ESENJA LLC Company. His interests are Programming, Thermodynamics, Fluid Mechanics, Artificial Intelligence, 2D & 3D Designs, and high-end innovations.
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