validate that the logic is still correct
cargo test --all-features --target x86_64-unknown-linux-gnu This change saves a lot of code!
> cargo bloat --release --features "left-std" File .text Size Crate Name 2.1% 51.1% 830B std compiler_builtins::mem::memmove 0.8% 20.2% 328B std compiler_builtins::mem::memcpy 0.7% 17.7% 288B slice_rotate slice_rotate::__cortex_m_rt_main 0.2% 3.8% 62B cortex_m_rt Reset 0.1% 1.5% 24B [Unknown] HardFaultTrampoline 0.1% 1.5% 24B std core::ptr::swap_nonoverlapping 0.0% 0.5% 8B std core::panicking::panic 0.0% 0.5% 8B [Unknown] main 0.0% 0.2% 4B [Unknown] __aeabi_memcpy 0.0% 0.2% 4B std compiler_builtins::arm::__aeabi_memmove 0.0% 0.2% 4B std compiler_builtins::arm::__aeabi_memcpy 0.0% 0.2% 4B [Unknown] __aeabi_memmove 0.0% 0.1% 2B cortex_m_rt HardFault_ 0.0% 0.1% 2B cortex_m_rt DefaultPreInit 0.0% 0.1% 2B cortex_m_rt DefaultHandler_ 0.0% 0.1% 2B std core::panicking::panic_fmt 0.0% 0.0% 0B And 0 smaller methods. Use -n N to show more. 4.1% 100.0% 1.6KiB .text section size, the file size is 38.8KiB > cargo bloat --release --features "left-size" File .text Size Crate Name 0.8% 42.0% 116B slice_rotate slice_rotate::__cortex_m_rt_main 0.4% 22.5% 62B cortex_m_rt Reset 0.2% 8.7% 24B [Unknown] HardFaultTrampoline 0.2% 8.7% 24B std core::ptr::swap_nonoverlapping 0.1% 2.9% 8B std core::panicking::panic 0.1% 2.9% 8B [Unknown] main 0.0% 0.7% 2B cortex_m_rt HardFault_ 0.0% 0.7% 2B cortex_m_rt DefaultPreInit 0.0% 0.7% 2B cortex_m_rt DefaultHandler_ 0.0% 0.7% 2B std core::panicking::panic_fmt 0.0% 0.0% 0B And 0 smaller methods. Use -n N to show more. 1.9% 100.0% 276B .text section size, the file size is 14.5KiB