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authorPieter Wuille <pieter@wuille.net>2021-11-02 10:07:46 -0400
committerPieter Wuille <pieter@wuille.net>2021-11-29 17:59:44 -0500
commit11daf6ceb1d9ea1f8d638b123eecfe39d162a7c3 (patch)
tree04577b15fa2b9dbbf611377c5a0e23bf2a705768 /src/script
parent568dd2f83900a11a4dbba1250722791a135bf0a9 (diff)
More Span simplifications
Based on suggestions by MarcoFalke <falke.marco@gmail.com>
Diffstat (limited to 'src/script')
-rw-r--r--src/script/descriptor.cpp2
-rw-r--r--src/script/interpreter.cpp6
2 files changed, 4 insertions, 4 deletions
diff --git a/src/script/descriptor.cpp b/src/script/descriptor.cpp
index 1c99df147b..30f929664f 100644
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -1252,7 +1252,7 @@ std::unique_ptr<PubkeyProvider> InferXOnlyPubkey(const XOnlyPubKey& xkey, ParseS
std::unique_ptr<DescriptorImpl> InferScript(const CScript& script, ParseScriptContext ctx, const SigningProvider& provider)
{
if (ctx == ParseScriptContext::P2TR && script.size() == 34 && script[0] == 32 && script[33] == OP_CHECKSIG) {
- XOnlyPubKey key{Span<const unsigned char>{script.data() + 1, script.data() + 33}};
+ XOnlyPubKey key{Span{script}.subspan(1, 32)};
return std::make_unique<PKDescriptor>(InferXOnlyPubkey(key, ctx, provider));
}
diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index d83ec7192b..6433ba1b58 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -1858,7 +1858,7 @@ uint256 ComputeTaprootMerkleRoot(Span<const unsigned char> control, const uint25
uint256 k = tapleaf_hash;
for (int i = 0; i < path_len; ++i) {
CHashWriter ss_branch{HASHER_TAPBRANCH};
- Span<const unsigned char> node(control.data() + TAPROOT_CONTROL_BASE_SIZE + TAPROOT_CONTROL_NODE_SIZE * i, TAPROOT_CONTROL_NODE_SIZE);
+ Span node{Span{control}.subspan(TAPROOT_CONTROL_BASE_SIZE + TAPROOT_CONTROL_NODE_SIZE * i, TAPROOT_CONTROL_NODE_SIZE)};
if (std::lexicographical_compare(k.begin(), k.end(), node.begin(), node.end())) {
ss_branch << k << node;
} else {
@@ -1874,7 +1874,7 @@ static bool VerifyTaprootCommitment(const std::vector<unsigned char>& control, c
assert(control.size() >= TAPROOT_CONTROL_BASE_SIZE);
assert(program.size() >= uint256::size());
//! The internal pubkey (x-only, so no Y coordinate parity).
- const XOnlyPubKey p{Span<const unsigned char>{control.data() + 1, control.data() + TAPROOT_CONTROL_BASE_SIZE}};
+ const XOnlyPubKey p{Span{control}.subspan(1, TAPROOT_CONTROL_BASE_SIZE - 1)};
//! The output pubkey (taken from the scriptPubKey).
const XOnlyPubKey q{program};
// Compute the Merkle root from the leaf and the provided path.
@@ -1886,7 +1886,7 @@ static bool VerifyTaprootCommitment(const std::vector<unsigned char>& control, c
static bool VerifyWitnessProgram(const CScriptWitness& witness, int witversion, const std::vector<unsigned char>& program, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror, bool is_p2sh)
{
CScript exec_script; //!< Actually executed script (last stack item in P2WSH; implied P2PKH script in P2WPKH; leaf script in P2TR)
- Span<const valtype> stack{witness.stack};
+ Span stack{witness.stack};
ScriptExecutionData execdata;
if (witversion == 0) {