Function tinyrlibc::itoa

#[no_mangle]
pub unsafe extern "C" fn itoa(
    i: i64, 
    s: *mut CChar, 
    s_len: usize, 
    radix: u8
) -> i32

Formats the given value i, with the given radix, into the given buffer (of the given length).

No prefixes (like 0x or 0b) are generated. Only radix values in the range 2..=16 are supported.

Returns the number of bytes written on success (not including the null), or -1 if the buffer wasn't large enough.