c++ string_t to string

To convert a string_t to a string in C++, you can follow these steps:

1. Include the necessary header files: In order to use the necessary functions and classes for string conversion, you need to include the appropriate header files. For converting string_t to string, you will need to include the <string> header file.

#include <string>

1. Convert string_t to wstring: The string_t type is a generic string type that can represent both narrow and wide character strings, depending on the configuration of your project. Before converting it to a string, you need to convert it to a wstring first. This step is necessary because wstring is capable of representing wide character strings, which is the default type for string in C++.

#include <locale>
#include <codecvt>

string_t str_t = U("Hello, World!");
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
std::wstring wstr = converter.from_bytes(str_t);

1. Convert wstring to string: Once you have the wstring, you can convert it to a string using the appropriate conversion function. In this case, you can use the std::wstring_convert class to convert the wstring to a string.

std::string str = converter.to_bytes(wstr);

After these steps, the str variable will contain the converted string_t as a string.

Here is the complete example:

#include <string>
#include <locale>
#include <codecvt>

int main() {
    string_t str_t = U("Hello, World!");
    std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
    std::wstring wstr = converter.from_bytes(str_t);
    std::string str = converter.to_bytes(wstr);

    return 0;
}