Can standard C library be used now?

[hkutzy]

I've noticed that in wiki says:

The Prizm doesn’t have libc or libstdc++ built in. This means that you cannot use functions available when programming on other platforms, like printf, file IO, std namespace, etc.. Edit: PrizmSDK 0.4 will have these features!

It's 0.6 now and are these features available now? If so, is there any example because i try to write printf but things didn't work.

[tari]

There are implementations of some stdio features, but they not very complete. Most format specifiers remain unsupported, so about the only thing you could expect to work is int-size decimal and hexadecimal values, as well as strings.

More detail of what "didn't work" would help elaborate on what's not available.