how to using std::format for numerics?

Question

Hi,
I'm translating code from .NET.
Can I format wstring for multiple parameters at once?
I am trying to format rgb color base long color:

const wstring s = std::format(to_wstring(colorVal % 256), L"00") + L", " +
std::format(to_wstring((colorVal / 256) % 256), L"00") + L", " +
std::format(to_wstring(colorVal / 65536), L"00");

However the code seems to be quite slow, can you point me to a better approach?

Thank you!

Answer 1

You are probably looking for something like std::format(L"{}, {}, {}", colorVal % 256, (colorVal / 256) % 256, colorVal / 65536)