DragonX/dragonx
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

Make comments in /src/script doxygen compatible

Browse Source
This commit is contained in:
Michael Ford
2014-11-10 14:40:01 +08:00
parent 7b7c866160
commit b9a36b15bf
7 changed files with 85 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
src/script/script.h
View File

@@ -179,12 +179,14 @@ public:
class CScriptNum
{
// Numeric opcodes (OP_1ADD, etc) are restricted to operating on 4-byte integers.
// The semantics are subtle, though: operands must be in the range [-2^31 +1...2^31 -1],
// but results may overflow (and are valid as long as they are not used in a subsequent
// numeric operation). CScriptNum enforces those semantics by storing results as
// an int64 and allowing out-of-range values to be returned as a vector of bytes but
// throwing an exception if arithmetic is done or the result is interpreted as an integer.
/**
* Numeric opcodes (OP_1ADD, etc) are restricted to operating on 4-byte integers.
* The semantics are subtle, though: operands must be in the range [-2^31 +1...2^31 -1],
* but results may overflow (and are valid as long as they are not used in a subsequent
* numeric operation). CScriptNum enforces those semantics by storing results as
* an int64 and allowing out-of-range values to be returned as a vector of bytes but
* throwing an exception if arithmetic is done or the result is interpreted as an integer.
*/
public:
explicit CScriptNum(const int64_t& n)
@@ -516,7 +518,7 @@ public:
return true;
}
// Encode/decode small integers:
/** Encode/decode small integers: */
static int DecodeOP_N(opcodetype opcode)
{
if (opcode == OP_0)
@@ -560,25 +562,31 @@ public:
return nFound;
}
// Pre-version-0.6, Bitcoin always counted CHECKMULTISIGs
// as 20 sigops. With pay-to-script-hash, that changed:
// CHECKMULTISIGs serialized in scriptSigs are
// counted more accurately, assuming they are of the form
// ... OP_N CHECKMULTISIG ...
/**
* Pre-version-0.6, Bitcoin always counted CHECKMULTISIGs
* as 20 sigops. With pay-to-script-hash, that changed:
* CHECKMULTISIGs serialized in scriptSigs are
* counted more accurately, assuming they are of the form
* ... OP_N CHECKMULTISIG ...
*/
unsigned int GetSigOpCount(bool fAccurate) const;
// Accurately count sigOps, including sigOps in
// pay-to-script-hash transactions:
/**
* Accurately count sigOps, including sigOps in
* pay-to-script-hash transactions:
*/
unsigned int GetSigOpCount(const CScript& scriptSig) const;
bool IsPayToScriptHash() const;
// Called by IsStandardTx and P2SH/BIP62 VerifyScript (which makes it consensus-critical).
/** Called by IsStandardTx and P2SH/BIP62 VerifyScript (which makes it consensus-critical). */
bool IsPushOnly() const;
// Returns whether the script is guaranteed to fail at execution,
// regardless of the initial stack. This allows outputs to be pruned
// instantly when entering the UTXO set.
/**
* Returns whether the script is guaranteed to fail at execution,
* regardless of the initial stack. This allows outputs to be pruned
* instantly when entering the UTXO set.
*/
bool IsUnspendable() const
{
return (size() > 0 && *begin() == OP_RETURN);