| … | |
… | |
| 764 | |
764 | |
| 765 | Overloaded C++ rotl/rotr functions. |
765 | Overloaded C++ rotl/rotr functions. |
| 766 | |
766 | |
| 767 | C<T> must be one of C<uint8_t>, C<uint16_t>, C<uint32_t> or C<uint64_t>. |
767 | C<T> must be one of C<uint8_t>, C<uint16_t>, C<uint32_t> or C<uint64_t>. |
| 768 | |
768 | |
| 769 | =item uint_fast8_t ecb_gray8_encode (uint_fast8_t b) |
769 | =item uint_fast8_t ecb_gray_encode8 (uint_fast8_t b) |
| 770 | |
770 | |
| 771 | =item uint_fast16_t ecb_gray16_encode (uint_fast16_t b) |
771 | =item uint_fast16_t ecb_gray_encode16 (uint_fast16_t b) |
| 772 | |
772 | |
| 773 | =item uint_fast32_t ecb_gray32_encode (uint_fast32_t b) |
773 | =item uint_fast32_t ecb_gray_encode32 (uint_fast32_t b) |
| 774 | |
774 | |
| 775 | =item uint_fast64_t ecb_gray64_encode (uint_fast64_t b) |
775 | =item uint_fast64_t ecb_gray_encode64 (uint_fast64_t b) |
| 776 | |
776 | |
| 777 | Encode an unsigned into its corresponding (reflective) gray code - the |
777 | Encode an unsigned into its corresponding (reflective) gray code - the |
| 778 | kind of gray code meant when just talking about "gray code". These |
778 | kind of gray code meant when just talking about "gray code". These |
| 779 | functions are very fast and all have identical implementation, so there is |
779 | functions are very fast and all have identical implementation, so there is |
| 780 | no need to use a smaller type, as long as your CPU can handle it natively. |
780 | no need to use a smaller type, as long as your CPU can handle it natively. |
| 781 | |
781 | |
| 782 | =item T ecb_gray_encode (T b) [C++] |
782 | =item T ecb_gray_encode (T b) [C++] |
| 783 | |
783 | |
| 784 | Overloaded C++ version of the above, for C<uint{8,16,32,64}_t>. |
784 | Overloaded C++ version of the above, for C<uint{8,16,32,64}_t>. |
| 785 | |
785 | |
| 786 | =item uint_fast8_t ecb_gray8_decode (uint_fast8_t b) |
786 | =item uint_fast8_t ecb_gray_decode8 (uint_fast8_t b) |
| 787 | |
787 | |
| 788 | =item uint_fast16_t ecb_gray16_decode (uint_fast16_t b) |
788 | =item uint_fast16_t ecb_gray_decode16 (uint_fast16_t b) |
| 789 | |
789 | |
| 790 | =item uint_fast32_t ecb_gray32_decode (uint_fast32_t b) |
790 | =item uint_fast32_t ecb_gray_decode32 (uint_fast32_t b) |
| 791 | |
791 | |
| 792 | =item uint_fast64_t ecb_gray64_decode (uint_fast64_t b) |
792 | =item uint_fast64_t ecb_gray_decode64 (uint_fast64_t b) |
| 793 | |
793 | |
| 794 | Decode a gray code back into linear index form (the reverse of |
794 | Decode a gray code back into linear index form (the reverse of |
| 795 | C<ecb_gray*_encode>. Unlike the encode functions, the decode functions |
795 | C<ecb_gray*_encode>. Unlike the encode functions, the decode functions |
| 796 | have higher time complexity for larger types, so it can pay off to use a |
796 | have higher time complexity for larger types, so it can pay off to use a |
| 797 | smaller type here. |
797 | smaller type here. |
