diff options
Diffstat (limited to 'bip-0065.mediawiki')
| -rw-r--r-- | bip-0065.mediawiki | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/bip-0065.mediawiki b/bip-0065.mediawiki index 15dca78..db10c0c 100644 --- a/bip-0065.mediawiki +++ b/bip-0065.mediawiki @@ -205,19 +205,19 @@ transaction output ''can'' be spent. Refer to the reference implementation, reproduced below, for the precise semantics and detailed rationale for those semantics. - + case OP_NOP2: { // CHECKLOCKTIMEVERIFY // // (nLockTime -- nLockTime ) - + if (!(flags & SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY)) break; // not enabled; treat as a NOP - + if (stack.size() < 1) return false; - + // Note that elsewhere numeric opcodes are limited to // operands in the range -2**31+1 to 2**31-1, however it is // legal for opcodes to produce results exceeding that @@ -233,13 +233,13 @@ semantics and detailed rationale for those semantics. // to 5-byte bignums, which are good until 2**32-1, the // same limit as the nLockTime field itself. const CScriptNum nLockTime(stacktop(-1), 5); - + // In the rare event that the argument may be < 0 due to // some arithmetic being done first, you can always use // 0 MAX CHECKLOCKTIMEVERIFY. if (nLockTime < 0) return false; - + // There are two types of nLockTime: lock-by-blockheight // and lock-by-blocktime, distinguished by whether // nLockTime < LOCKTIME_THRESHOLD. @@ -252,12 +252,12 @@ semantics and detailed rationale for those semantics. (txTo.nLockTime >= LOCKTIME_THRESHOLD && nLockTime >= LOCKTIME_THRESHOLD) )) return false; - + // Now that we know we're comparing apples-to-apples, the // comparison is a simple numeric one. if (nLockTime > (int64_t)txTo.nLockTime) return false; - + // Finally the nLockTime feature can be disabled and thus // CHECKLOCKTIMEVERIFY bypassed if every txin has been // finalized by setting nSequence to maxint. The @@ -270,9 +270,9 @@ semantics and detailed rationale for those semantics. // required to prove correct CHECKLOCKTIMEVERIFY execution. if (txTo.vin[nIn].IsFinal()) return false; - + break; - + } https://github.com/petertodd/bitcoin/commit/ab0f54f38e08ee1e50ff72f801680ee84d0f1bf4 |