Fails to compile: ToStrRadix does not exist

[wackywendell]

cargo build fails:

   Compiling num v0.0.1 (file:///home/wendell/code/rust-num)
/home/wendell/code/rust-num/src/bigint.rs:656:6: 656:16 error: attempt to implement a nonexistent trait `ToStrRadix`
/home/wendell/code/rust-num/src/bigint.rs:656 impl ToStrRadix for BigUint {
                                                   ^~~~~~~~~~
/home/wendell/code/rust-num/src/bigint.rs:720:22: 720:37 error: unresolved name `Vec::from_slice`. Did you mean to call `BigUint::Vec::from_slice`?
/home/wendell/code/rust-num/src/bigint.rs:720         BigUint::new(Vec::from_slice(slice))
                                                                   ^~~~~~~~~~~~~~~
/home/wendell/code/rust-num/src/bigint.rs:1268:6: 1268:16 error: attempt to implement a nonexistent trait `ToStrRadix`
/home/wendell/code/rust-num/src/bigint.rs:1268 impl ToStrRadix for BigInt {
                                                    ^~~~~~~~~~
/home/wendell/code/rust-num/src/complex.rs:175:9: 175:19 error: attempt to bound type parameter with a nonexistent trait `ToStrRadix`
/home/wendell/code/rust-num/src/complex.rs:175 impl<T: ToStrRadix + Num + PartialOrd> ToStrRadix for Complex<T> {
                                                       ^~~~~~~~~~
/home/wendell/code/rust-num/src/complex.rs:175:40: 175:50 error: attempt to implement a nonexistent trait `ToStrRadix`
/home/wendell/code/rust-num/src/complex.rs:175 impl<T: ToStrRadix + Num + PartialOrd> ToStrRadix for Complex<T> {
                                                                                      ^~~~~~~~~~
/home/wendell/code/rust-num/src/rational.rs:347:9: 347:19 error: attempt to bound type parameter with a nonexistent trait `ToStrRadix`
/home/wendell/code/rust-num/src/rational.rs:347 impl<T: ToStrRadix> ToStrRadix for Ratio<T> {
                                                        ^~~~~~~~~~
/home/wendell/code/rust-num/src/rational.rs:347:21: 347:31 error: attempt to implement a nonexistent trait `ToStrRadix`
/home/wendell/code/rust-num/src/rational.rs:347 impl<T: ToStrRadix> ToStrRadix for Ratio<T> {
                                                                    ^~~~~~~~~~
error: aborting due to 7 previous errors
Could not compile `num`.

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I'm working on fixing this now (replacing ToStrRadix with fmt::radix stuff)... I'm not particularly familiar with fmt::radix so it might take me a bit, but it seemed bite-size. Let me know if that's unnecessary or someone is already on this...

[alexcrichton]

Oh sorry, I was already working on it! I may have taken a bit of a big hammer to it though, (mostly removed things), but feel free to add them back in with fmt::radix or other format-related traits!

[wackywendell]

No problem, thanks for posting so quickly! I will try and add some back in, but we'll see how it goes!

[jsanders]

@alexcrichton, @wackywendell: I think this is relevant here - I tried to transition from ToStrRadix to fmt::radix in rust-gmp and ran into rust-lang/rust#18301.

[wackywendell]

Thanks for the note! I'll look into it.