我正在尝试使用waf构建软件，我收到错误：
In file included from ../src/internet-stack/mp-tcp-typedefs.cc:6:
../src/internet-stack/mp-tcp-typedefs.h:151: error: ISO C++ forbids declaration of ‘multiset’ with no type
../src/internet-stack/mp-tcp-typedefs.h:151: error: expected ‘;’ before ‘<’ token
../src/internet-stack/mp-tcp-typedefs.cc: In member function ‘void ns3::MpTcpSubFlow::updateRTT(uint32_t, ns3::Time)’:
../src/internet-stack/mp-tcp-typedefs.cc:550: error: ‘measuredRTT’ was not declared in this scope
In file included from ../src/internet-stack/mp-tcp-socket-impl.cc:17:
../src/internet-stack/mp-tcp-typedefs.h:151: error: ISO C++ forbids declaration of ‘multiset’ with no type
../src/internet-stack/mp-tcp-typedefs.h:151: error: expected ‘;’ before ‘<’ token
In file included from ../src/internet-stack/mp-tcp-socket-impl.h:19,
from ../src/internet-stack/mp-tcp-l4-protocol.h:19,
from ../src/internet-stack/mp-tcp-l4-protocol.cc:11:
../src/internet-stack/mp-tcp-typedefs.h:151: error: ISO C++ forbids declaration of ‘multiset’ with no type
../src/internet-stack/mp-tcp-typedefs.h:151: error: expected ‘;’ before ‘<’ token
In file included from debug/ns3/mp-tcp-socket-impl.h:19,
from ../src/applications/packet-sink/mp-tcp-packet-sink.h:9,
from ../src/applications/packet-sink/mp-tcp-packet-sink.cc:13:
debug/ns3/mp-tcp-typedefs.h:151: error: ISO C++ forbids declaration of ‘multiset’ with no type
debug/ns3/mp-tcp-typedefs.h:151: error: expected ‘;’ before ‘<’ token
../src/internet-stack/mp-tcp-socket-impl.cc: In member function ‘void ns3::MpTcpSocketImpl::GenerateRTTPlot()’:
../src/internet-stack/mp-tcp-socket-impl.cc:1884: error: ‘class ns3::MpTcpSubFlow’ has no member named ‘measuredRTT’
../src/internet-stack/mp-tcp-socket-impl.cc:1901: error: ‘class ns3::MpTcpSubFlow’ has no member named ‘measuredRTT’
../src/internet-stack/mp-tcp-socket-impl.cc:1913: error: ‘multiset’ was not declared in this scope
../src/internet-stack/mp-tcp-socket-impl.cc:1913: error: expected primary-expression before ‘double’
../src/internet-stack/mp-tcp-socket-impl.cc:1913: error: expected ‘;’ before ‘double’
../src/internet-stack/mp-tcp-socket-impl.cc:1915: error: ‘it’ was not declared in this scope
../src/internet-stack/mp-tcp-socket-impl.cc:1917: error: ‘class ns
3::MpTcpSubFlow’ has no member named ‘measuredRTT’
我找不到解决错误的方法：正如您可以看到我正确填充了名称空间和标题。
错误：ISO C ++禁止声明没有类型的“multiset”。
代码是：
#include <vector>
#include <map>
#include "sequence-number.h"
#include "rtt-estimator.h"
#include "tcp-typedefs.h"
#include "ns3/ipv4-address.h"
#include "ns3/event-id.h"
#include <stdint.h>
#include <queue>
#include <list>
#include <set>
#include "ns3/object.h"
#include "ns3/uinteger.h"
#include "ns3/traced-value.h"
#include "ns3/trace-source-accessor.h"
#ifndef MP_TCP_TYPEDEFS_H
#define MP_TCP_TYPEDEFS_H
using namespace std;
namespace ns3 {
typedef enum {
MP_NONE, // 0
MP_MPC, // 1
MP_ADDR, // 2
MP_JOIN} MpStates_t;
// Multipath actions
// congestion control algorithm
typedef enum {
Uncoupled_TCPs, // 0
Linked_Increases, // 1
RTT_Compensator, // 2
Fully_Coupled // 3
} CongestionCtrl_t;
// connection phase
typedef enum {
Slow_Start, // 0
Congestion_Avoidance, // 1
DSACK_SS, // 2 DSACK Slow Start: a temporary slow start triggered after detecting spurious retransmission based on DSACK information
RTO_Recovery // 3 Reconvery algorithm after RTO expiration
} Phase_t;
typedef enum {
Round_Robin // 0
//Collision_Avoidance // 1
} DataDistribAlgo_t;
typedef enum {
NoPR_Algo, // 0
Eifel, // 1
TCP_DOOR, // 2 Detection of Out-of-Order and Response
D_SACK, // 3 Duplicate SACK (Selective ACKnowledgement)
F_RTO // 4 Forward RTO-Recovery: Algorithm for detecting spurious retransmission timeouts
} PacketReorder_t;
typedef enum {
Step_1, // 0
Step_2, // 1
Step_3, // 2
Step_4 // 3 In this step of F-RTO do a standard Fast Recovery algorithm
} FRtoStep_t;
class DSNMapping
{
public:
DSNMapping ();
DSNMapping (uint8_t sFlowIdx, uint64_t dSeqNum, uint16_t dLvlLen, uint32_t sflowSeqNum, uint32_t ack, Ptr<Packet> pkt);
//DSNMapping (const DSNMapping &res);
virtual ~DSNMapping();
uint64_t dataSeqNumber;
uint16_t dataLevelLength;
uint32_t subflowSeqNumber;
uint32_t acknowledgement;
uint32_t dupAckCount;
uint8_t subflowIndex;
uint8_t *packet;
bool operator < (const DSNMapping& rhs) const;
// variables for reordering simulation
// Eifel Algorithm
bool retransmited;
uint64_t tsval; // TimesTamp value
/*
private:/
bool original;
*/
};
typedef enum {
NO_ACTION, // 0
ADDR_TX,
INIT_SUBFLOWS} MpActions_t;
class MpTcpStateMachine : public TcpStateMachine
{
public:
MpTcpStateMachine();
virtual ~MpTcpStateMachine();
string printState(States_t s);
string printEvent(Events_t e);
string printAction(Actions_t a);
};
class MpTcpSubFlow : public Object
{
public:
static TypeId GetTypeId (void);
MpTcpSubFlow ();
~MpTcpSubFlow ();
MpTcpSubFlow (uint32_t TxSeqNb);
void StartTracing (string traced);
void CwndTracer (double oldval, double newval);
void AddDSNMapping(uint8_t sFlowIdx, uint64_t dSeqNum, uint16_t dLvlLen, uint32_t sflowSeqNum, uint32_t ack, Ptr<Packet> pkt);
void updateRTT (uint32_t ack, Time current);
DSNMapping * GetunAckPkt (uint32_t awnd);
uint16_t routeId;
bool connected;
States_t state;
Phase_t phase;
Ipv4Address sAddr;
uint16_t sPort;
Ipv4Address dAddr;
uint16_t dPort;
uint32_t oif;
EventId retxEvent;
uint32_t MSS; // Maximum Segment Size
//double cwnd;
TracedValue<double> cwnd;
double scwnd; // smoothed congestion window
uint32_t ssthresh;
uint32_t maxSeqNb; // it represent the highest sequence number of a sent byte. In general it's egual to ( TxSeqNumber - 1 ) until a retransmission happen
uint32_t highestAck; // hightest received ACK for the subflow level sequence number
uint64_t bandwidth;
list<DSNMapping*> mapDSN;
multiset<double> measuredRTT;
//list<double> measuredRTT;
Ptr<RttMeanDeviation> rtt;
Time lastMeasuredRtt;
uint32_t TxSeqNumber;
uint32_t RxSeqNumber;
// for losses simulation
double LostThreshold;
bool CanDrop;
uint64_t PktCount;
uint64_t MaxPktCount;
uint32_t DropedPktCount;
uint32_t MaxDropedPktCount;
// Reordering simulation
double savedCWND;
uint32_t savedSSThresh;
bool SpuriousRecovery;
uint32_t recover;
uint8_t ackCount; // count of received acknowledgement after an RTO expiration
uint32_t ReTxSeqNumber; // higher sequence number of the retransmitted segment
int nbRecvAck;
};
class MpTcpAddressInfo
{
public:
MpTcpAddressInfo();
~MpTcpAddressInfo();
uint8_t addrID;
Ipv4Address ipv4Addr;
Ipv4Mask mask;
};
class DataBuffer
{
public:
DataBuffer();
DataBuffer(uint32_t size);
~DataBuffer();
queue<uint8_t> buffer;
uint32_t bufMaxSize;
uint32_t Add(uint8_t* buf, uint32_t size);
uint32_t Retrieve(uint8_t* buf, uint32_t size);
Ptr<Packet> CreatePacket (uint32_t size);
uint32_t ReadPacket (Ptr<Packet> pkt, uint32_t dataLen);
bool Empty();
bool Full ();
uint32_t PendingData();
uint32_t FreeSpaceSize();
};
}//namespace ns3
#endif //MP_TCP_TYPEDEFS_H
我上面的代码是mp-tcp-typedefs.h文件。
答案 0 :(得分：1)
这意味着multiset已经以类似于：
的方式向前声明template < class T > class multiset;
这种声明允许多项使用：
multiset<double> *pointer;
但不是：
multiset<double> measuredRTT;
以下代码与您的代码相同，没有项目的标题，也没有代码取决于compiles without error。
我只能得出结论，问题不在你发布的代码中，而是在其中一些标题中。
#include <vector>
#include <map>
#include <stdint.h>
#include <queue>
#include <list>
#include <set>
#ifndef MP_TCP_TYPEDEFS_H
#define MP_TCP_TYPEDEFS_H
using namespace std;
namespace ns3 {
typedef enum {
MP_NONE, // 0
MP_MPC, // 1
MP_ADDR, // 2
MP_JOIN} MpStates_t;
// Multipath actions
// congestion control algorithm
typedef enum {
Uncoupled_TCPs, // 0
Linked_Increases, // 1
RTT_Compensator, // 2
Fully_Coupled // 3
} CongestionCtrl_t;
// connection phase
typedef enum {
Slow_Start, // 0
Congestion_Avoidance, // 1
DSACK_SS, // 2 DSACK Slow Start: a temporary slow start triggered after detecting spurious retransmission based on DSACK information
RTO_Recovery // 3 Reconvery algorithm after RTO expiration
} Phase_t;
typedef enum {
Round_Robin // 0
//Collision_Avoidance // 1
} DataDistribAlgo_t;
typedef enum {
NoPR_Algo, // 0
Eifel, // 1
TCP_DOOR, // 2 Detection of Out-of-Order and Response
D_SACK, // 3 Duplicate SACK (Selective ACKnowledgement)
F_RTO // 4 Forward RTO-Recovery: Algorithm for detecting spurious retransmission timeouts
} PacketReorder_t;
typedef enum {
Step_1, // 0
Step_2, // 1
Step_3, // 2
Step_4 // 3 In this step of F-RTO do a standard Fast Recovery algorithm
} FRtoStep_t;
class DSNMapping
{
public:
DSNMapping ();
//DSNMapping (const DSNMapping &res);
virtual ~DSNMapping();
uint64_t dataSeqNumber;
uint16_t dataLevelLength;
uint32_t subflowSeqNumber;
uint32_t acknowledgement;
uint32_t dupAckCount;
uint8_t subflowIndex;
uint8_t *packet;
bool operator < (const DSNMapping& rhs) const;
// variables for reordering simulation
// Eifel Algorithm
bool retransmited;
uint64_t tsval; // TimesTamp value
/*
private:/
bool original;
*/
};
typedef enum {
NO_ACTION, // 0
ADDR_TX,
INIT_SUBFLOWS} MpActions_t;
class MpTcpStateMachine
{
public:
MpTcpStateMachine();
virtual ~MpTcpStateMachine();
};
class MpTcpSubFlow
{
public:
MpTcpSubFlow ();
~MpTcpSubFlow ();
MpTcpSubFlow (uint32_t TxSeqNb);
void StartTracing (string traced);
void CwndTracer (double oldval, double newval);
DSNMapping * GetunAckPkt (uint32_t awnd);
uint16_t routeId;
bool connected;
Phase_t phase;
uint16_t sPort;
uint16_t dPort;
uint32_t oif;
uint32_t MSS; // Maximum Segment Size
//double cwnd;
double scwnd; // smoothed congestion window
uint32_t ssthresh;
uint32_t maxSeqNb; // it represent the highest sequence number of a sent byte. In general it's egual to ( TxSeqNumber - 1 ) until a retransmission happen
uint32_t highestAck; // hightest received ACK for the subflow level sequence number
uint64_t bandwidth;
list<DSNMapping*> mapDSN;
multiset<double> measuredRTT;
//list<double> measuredRTT;
uint32_t TxSeqNumber;
uint32_t RxSeqNumber;
// for losses simulation
double LostThreshold;
bool CanDrop;
uint64_t PktCount;
uint64_t MaxPktCount;
uint32_t DropedPktCount;
uint32_t MaxDropedPktCount;
// Reordering simulation
double savedCWND;
uint32_t savedSSThresh;
bool SpuriousRecovery;
uint32_t recover;
uint8_t ackCount; // count of received acknowledgement after an RTO expiration
uint32_t ReTxSeqNumber; // higher sequence number of the retransmitted segment
int nbRecvAck;
};
class MpTcpAddressInfo
{
public:
MpTcpAddressInfo();
~MpTcpAddressInfo();
uint8_t addrID;
};
class DataBuffer
{
public:
DataBuffer();
DataBuffer(uint32_t size);
~DataBuffer();
queue<uint8_t> buffer;
uint32_t bufMaxSize;
uint32_t Add(uint8_t* buf, uint32_t size);
uint32_t Retrieve(uint8_t* buf, uint32_t size);
bool Empty();
bool Full ();
uint32_t PendingData();
uint32_t FreeSpaceSize();
};
}//namespace ns3
#endif //MP_TCP_TYPEDEFS_H
/// Added just so that the linker does not complain about lack of missing main
int main(int argc, char* argv[] )
{
return 0;
}