707ba8692b
66545da2008cd9e806e41b74522ded259cd64f86 Remove support for double serialization (Pieter Wuille)
fff1cae43af959a601cf2558cb3c77f3c2b1aa80 Convert uses of double-serialization to {En,De}codeDouble (Pieter Wuille)
afd964d70b6f7583ecf89c380f80db07f5b66a60 Convert existing float encoding tests (Pieter Wuille)
bda33f98e2f32f2411fb0a8f5fb4f0a32abdf7d4 Add unit tests for serfloat module (Pieter Wuille)
2be4cd94f4c7d92a4287971233a20d68db81c9c9 Add platform-independent float encoder/decoder (Pieter Wuille)
e40224d0c77674348bf0a518365208bc118f39a4 Remove unused float serialization (MarcoFalke)
Pull request description:
Based on #21981.
This adds a software-based platform-independent float/double encoder/decoder (platform independent in the sense that it only uses arithmetic and library calls, but never inspects the binary representation). This should strengthen our guarantee that encoded float/double values are portable across platforms. It then removes the functionality to serialize doubles from serialize.h, and replaces its only (non-test) use for fee estimation data serialization with the software encoder.
At least on x86/ARM, the only difference should be how certain NaN values are encoded/decoded (but not *whether* they are NaN or not).
It comes with tests that verify on is_iec559 platforms (which are the only ones we support, at least for now) that the serialized bytes exactly match the binary representation of floats in memory (for non-NaN).
ACKs for top commit:
laanwj:
Code review re-ACK 66545da2008cd9e806e41b74522ded259cd64f86
practicalswift:
cr re-ACK 66545da2008cd9e806e41b74522ded259cd64f86
Tree-SHA512: 62ad9adc26e28707b2eb12a919feefd4fd10cf9032652dbb1ca1cc97638ac21de89e240858e80d293d5112685c623e58affa3d316a9783ff0e6d291977a141f5
Bitcoin Core integration/staging tree
For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.
Further information about Bitcoin Core is available in the doc folder.
What is Bitcoin?
Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.
For more information read the original Bitcoin whitepaper.
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