Bitcoin Core  0.20.99
P2P Digital Currency
Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
CScript Class Reference

Serialized script, used inside transaction inputs and outputs. More...

#include <script.h>

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Public Member Functions

 CScript ()
 
 CScript (const_iterator pbegin, const_iterator pend)
 
 CScript (std::vector< unsigned char >::const_iterator pbegin, std::vector< unsigned char >::const_iterator pend)
 
 CScript (const unsigned char *pbegin, const unsigned char *pend)
 
 SERIALIZE_METHODS (CScript, obj)
 
 CScript (int64_t b)
 
 CScript (opcodetype b)
 
 CScript (const CScriptNum &b)
 
 CScript (const std::vector< unsigned char > &b)=delete
 
CScriptoperator<< (const CScript &b)=delete
 Delete non-existent operator to defend against future introduction. More...
 
CScriptoperator<< (int64_t b)
 
CScriptoperator<< (opcodetype opcode)
 
CScriptoperator<< (const CScriptNum &b)
 
CScriptoperator<< (const std::vector< unsigned char > &b)
 
bool GetOp (const_iterator &pc, opcodetype &opcodeRet, std::vector< unsigned char > &vchRet) const
 
bool GetOp (const_iterator &pc, opcodetype &opcodeRet) const
 
unsigned int GetSigOpCount (bool fAccurate) const
 Pre-version-0.6, Bitcoin always counted CHECKMULTISIGs as 20 sigops. More...
 
unsigned int GetSigOpCount (const CScript &scriptSig) const
 Accurately count sigOps, including sigOps in pay-to-script-hash transactions: More...
 
bool IsPayToScriptHash () const
 
bool IsPayToWitnessScriptHash () const
 
bool IsWitnessProgram (int &version, std::vector< unsigned char > &program) const
 
bool IsPushOnly (const_iterator pc) const
 Called by IsStandardTx and P2SH/BIP62 VerifyScript (which makes it consensus-critical). More...
 
bool IsPushOnly () const
 
bool HasValidOps () const
 Check if the script contains valid OP_CODES. More...
 
bool IsUnspendable () const
 Returns whether the script is guaranteed to fail at execution, regardless of the initial stack. More...
 
void clear ()
 
- Public Member Functions inherited from prevector< N, T, Size, Diff >
void assign (size_type n, const T &val)
 
template<typename InputIterator >
void assign (InputIterator first, InputIterator last)
 
 prevector ()
 
 prevector (size_type n)
 
 prevector (size_type n, const T &val)
 
template<typename InputIterator >
 prevector (InputIterator first, InputIterator last)
 
 prevector (const prevector< N, T, Size, Diff > &other)
 
 prevector (prevector< N, T, Size, Diff > &&other)
 
prevectoroperator= (const prevector< N, T, Size, Diff > &other)
 
prevectoroperator= (prevector< N, T, Size, Diff > &&other)
 
size_type size () const
 
bool empty () const
 
iterator begin ()
 
const_iterator begin () const
 
iterator end ()
 
const_iterator end () const
 
reverse_iterator rbegin ()
 
const_reverse_iterator rbegin () const
 
reverse_iterator rend ()
 
const_reverse_iterator rend () const
 
size_t capacity () const
 
T & operator[] (size_type pos)
 
const T & operator[] (size_type pos) const
 
void resize (size_type new_size)
 
void reserve (size_type new_capacity)
 
void shrink_to_fit ()
 
void clear ()
 
iterator insert (iterator pos, const T &value)
 
void insert (iterator pos, size_type count, const T &value)
 
template<typename InputIterator >
void insert (iterator pos, InputIterator first, InputIterator last)
 
void resize_uninitialized (size_type new_size)
 
iterator erase (iterator pos)
 
iterator erase (iterator first, iterator last)
 
template<typename... Args>
void emplace_back (Args &&... args)
 
void push_back (const T &value)
 
void pop_back ()
 
T & front ()
 
const T & front () const
 
T & back ()
 
const T & back () const
 
void swap (prevector< N, T, Size, Diff > &other)
 
 ~prevector ()
 
bool operator== (const prevector< N, T, Size, Diff > &other) const
 
bool operator!= (const prevector< N, T, Size, Diff > &other) const
 
bool operator< (const prevector< N, T, Size, Diff > &other) const
 
size_t allocated_memory () const
 
value_typedata ()
 
const value_typedata () const
 

Static Public Member Functions

static int DecodeOP_N (opcodetype opcode)
 Encode/decode small integers: More...
 
static opcodetype EncodeOP_N (int n)
 

Protected Member Functions

CScriptpush_int64 (int64_t n)
 

Additional Inherited Members

- Public Types inherited from prevector< N, T, Size, Diff >
typedef Size size_type
 
typedef Diff difference_type
 
typedef T value_type
 
typedef value_typereference
 
typedef const value_typeconst_reference
 
typedef value_typepointer
 
typedef const value_typeconst_pointer
 

Detailed Description

Serialized script, used inside transaction inputs and outputs.

Definition at line 404 of file script.h.

Constructor & Destructor Documentation

◆ CScript() [1/8]

CScript::CScript ( )
inline

Definition at line 424 of file script.h.

◆ CScript() [2/8]

CScript::CScript ( const_iterator  pbegin,
const_iterator  pend 
)
inline

Definition at line 425 of file script.h.

◆ CScript() [3/8]

CScript::CScript ( std::vector< unsigned char >::const_iterator  pbegin,
std::vector< unsigned char >::const_iterator  pend 
)
inline

Definition at line 426 of file script.h.

◆ CScript() [4/8]

CScript::CScript ( const unsigned char *  pbegin,
const unsigned char *  pend 
)
inline

Definition at line 427 of file script.h.

◆ CScript() [5/8]

CScript::CScript ( int64_t  b)
inlineexplicit

Definition at line 431 of file script.h.

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◆ CScript() [6/8]

CScript::CScript ( opcodetype  b)
inlineexplicit

Definition at line 432 of file script.h.

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◆ CScript() [7/8]

CScript::CScript ( const CScriptNum b)
inlineexplicit

Definition at line 433 of file script.h.

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◆ CScript() [8/8]

CScript::CScript ( const std::vector< unsigned char > &  b)
explicitdelete

Member Function Documentation

◆ clear()

void CScript::clear ( )
inline

Definition at line 548 of file script.h.

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◆ DecodeOP_N()

static int CScript::DecodeOP_N ( opcodetype  opcode)
inlinestatic

Encode/decode small integers:

Definition at line 497 of file script.h.

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◆ EncodeOP_N()

static opcodetype CScript::EncodeOP_N ( int  n)
inlinestatic

Definition at line 504 of file script.h.

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◆ GetOp() [1/2]

bool CScript::GetOp ( const_iterator pc,
opcodetype opcodeRet,
std::vector< unsigned char > &  vchRet 
) const
inline

Definition at line 486 of file script.h.

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◆ GetOp() [2/2]

bool CScript::GetOp ( const_iterator pc,
opcodetype opcodeRet 
) const
inline

Definition at line 491 of file script.h.

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◆ GetSigOpCount() [1/2]

unsigned int CScript::GetSigOpCount ( bool  fAccurate) const

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 ...

Definition at line 153 of file script.cpp.

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◆ GetSigOpCount() [2/2]

unsigned int CScript::GetSigOpCount ( const CScript scriptSig) const

Accurately count sigOps, including sigOps in pay-to-script-hash transactions:

... and return its opcount:

Definition at line 177 of file script.cpp.

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◆ HasValidOps()

bool CScript::HasValidOps ( ) const

Check if the script contains valid OP_CODES.

Definition at line 270 of file script.cpp.

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◆ IsPayToScriptHash()

bool CScript::IsPayToScriptHash ( ) const

Definition at line 201 of file script.cpp.

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◆ IsPayToWitnessScriptHash()

bool CScript::IsPayToWitnessScriptHash ( ) const

Definition at line 210 of file script.cpp.

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◆ IsPushOnly() [1/2]

bool CScript::IsPushOnly ( const_iterator  pc) const

Called by IsStandardTx and P2SH/BIP62 VerifyScript (which makes it consensus-critical).

Definition at line 236 of file script.cpp.

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◆ IsPushOnly() [2/2]

bool CScript::IsPushOnly ( ) const

Definition at line 253 of file script.cpp.

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◆ IsUnspendable()

bool CScript::IsUnspendable ( ) const
inline

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.

Definition at line 543 of file script.h.

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◆ IsWitnessProgram()

bool CScript::IsWitnessProgram ( int &  version,
std::vector< unsigned char > &  program 
) const

Definition at line 220 of file script.cpp.

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◆ operator<<() [1/5]

CScript& CScript::operator<< ( const CScript b)
delete

Delete non-existent operator to defend against future introduction.

◆ operator<<() [2/5]

CScript& CScript::operator<< ( int64_t  b)
inline

Definition at line 441 of file script.h.

◆ operator<<() [3/5]

CScript& CScript::operator<< ( opcodetype  opcode)
inline

Definition at line 443 of file script.h.

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◆ operator<<() [4/5]

CScript& CScript::operator<< ( const CScriptNum b)
inline

Definition at line 451 of file script.h.

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◆ operator<<() [5/5]

CScript& CScript::operator<< ( const std::vector< unsigned char > &  b)
inline

Definition at line 457 of file script.h.

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◆ push_int64()

CScript& CScript::push_int64 ( int64_t  n)
inlineprotected

Definition at line 407 of file script.h.

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◆ SERIALIZE_METHODS()

CScript::SERIALIZE_METHODS ( CScript  ,
obj   
)
inline

Definition at line 429 of file script.h.


The documentation for this class was generated from the following files: