Print a number in base 4

Lately I had a 开发者_如何学JAVAtask that included printing base-4 representation of a number. Since I didn't find a function to do it for me, I implemented it (which is not so hard of course), but I wonder, is there a way to do it using format placeholders?

I'm not asking how to implement such function, but if such function / format placeholder already exists?

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There is no standard C or C++ function, but you may be able to use itoa

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The closest you could get to doing it with printf is using snprintf to convert it to hex, then a lookup table to convert hex digits to pairs of base-4 digits. :-)

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No, not in the Standard C library.

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I think that printf can handle only decimal, hexadecimal and octal values. So i think no.