| … | |
… | |
| 620 | |
620 | |
| 621 | For example: |
621 | For example: |
| 622 | |
622 | |
| 623 | ecb_ctz32 (3) = 0 |
623 | ecb_ctz32 (3) = 0 |
| 624 | ecb_ctz32 (6) = 1 |
624 | ecb_ctz32 (6) = 1 |
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625 | |
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626 | =item int ecb_clz32 (uint32_t x) |
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627 | |
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628 | =item int ecb_clz64 (uint64_t x) |
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629 | |
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630 | =item int ecb_clz (T x) [C++] |
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631 | |
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632 | Counts the number of leading zero bits in C<x>. If C<x> is 0 the result is |
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633 | undefined. |
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634 | |
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635 | The overloaded C++ C<ecb_clz> function supports C<uint32_t> and |
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636 | C<uint64_t> types only. |
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637 | |
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638 | It is often simpler to use one of the C<ecb_ld*> functions instead, whoise |
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639 | result only depends on the value and not the size of the type. |
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640 | |
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641 | For example: |
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642 | |
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643 | ecb_clz32 (3) = 30 |
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644 | ecb_clz32 (6) = 29 |
| 625 | |
645 | |
| 626 | =item bool ecb_is_pot32 (uint32_t x) |
646 | =item bool ecb_is_pot32 (uint32_t x) |
| 627 | |
647 | |
| 628 | =item bool ecb_is_pot64 (uint32_t x) |
648 | =item bool ecb_is_pot64 (uint32_t x) |
| 629 | |
649 | |
