Change Details

2b0fcff7f26d59fed4bcafd1602325122a206c67 Make VerifyWitnessProgram use a Span stack (Pieter Wuille) Pull request description: Here is a follow-up to #18002, again with the goal of simplifying (potential) BIP341 code. Instead of passing a begin and end iterator of the initial stack to `ExecuteWitnessScript`, they are turned into a `Span<const valtype>`, representing a span of `valtype`s in memory. This allows `VerifyWitnessProgram` to operate on that span directly, instead of juggling iterators around (which would be exacerbated by #17977 if trying to avoid copying the stack). --- Ignored the SegWit stuff but brought in the Span functionality, might be used in the future also less merge conflicts Backport of Core PR18388

2b0fcff7f26d59fed4bcafd1602325122a206c67 Make VerifyWitnessProgram use a Span stack (Pieter Wuille) Pull request description: Here is a follow-up to #18002, again with the goal of simplifying (potential) BIP341 code. Instead of passing a begin and end iterator of the initial stack to `ExecuteWitnessScript`, they are turned into a `Span<const valtype>`, representing a span of `valtype`s in memory. This allows `VerifyWitnessProgram` to operate on that span directly, instead of juggling iterators around (which would be exacerbated by #17977 if trying to avoid copying the stack). --- Ignored the SegWit stuff but brought in the Span functionality, might be used in the future also less merge conflicts Backport of Core [[https://github.com/bitcoin/bitcoin/pull/18388 | PR18388]]

2b0fcff7f26d59fed4bcafd1602325122a206c67 Make VerifyWitnessProgram use a Span stack (Pieter Wuille) Pull request description: Here is a follow-up to #18002, again with the goal of simplifying (potential) BIP341 code. Instead of passing a begin and end iterator of the initial stack to `ExecuteWitnessScript`, they are turned into a `Span<const valtype>`, representing a span of `valtype`s in memory. This allows `VerifyWitnessProgram` to operate on that span directly, instead of juggling iterators around (which would be exacerbated by #17977 if trying to avoid copying the stack). --- Ignored the SegWit stuff but brought in the Span functionality, might be used in the future also less merge conflicts Backport of Core [[https://github.com/bitcoin/bitcoin/pull/18388 | PR18388]]