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Reliably converting between std::vector<uint8_t> and WString [message #55560]

Sun, 22 November 2020 00:17

steveo
Messages: 11
Registered: November 2020

Promising Member

I have a desire to use some encryption libraries which are not WString aware.

How do I reliably take the raw buffer of a WString and convert it to a std::vector<uint8_t>?

and conversely.

How do I reliably take a buffer thus converted and reliably put it back into a WString?

It's been years since I did pointer arithmetic and back in the day we simply ignored WString because we could.

WString input = "Some unicode text";
std::vector<uint8_t> bytes(const uint8_t*)input.Begin(), input.GetCount()*sizeof(wchar));
WString output((const wchar*)bytes.data(), (bytes.size()/sizeof(wchar));

[Updated on: Sun, 22 November 2020 00:24]

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Re: Reliably converting between std::vector<uint8_t> and WString [message #55561 is a reply to message #55560]

Sun, 22 November 2020 00:26

Oblivion
Messages: 1202
Registered: August 2007

Senior Contributor

Quote:

How do I reliably take the raw buffer of a WString and convert it to a std::vector<uint8_t>?

Both Upp::WString and Upp::String classes have a ToStd() method and relevant constructors which converts them to std::string or from std::string to them, if that's what you need.

If you simply need Utf16 to Utf8 conversion, there is also a ToUtf8 method that takes a WString and converts it to Utf8.

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Sun, 22 November 2020 00:32]

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