visual c++: problems with pointers

D

Dark Knight

Hello,

I am trying to create a linklist program and I am running into a problem
with this line:

llrecord linklist::find(char ctemp[])

I get three compile errors:

error C2143: syntax error: missing ';' before 'tag::id'
error C2501: 'llrecord':missing storage-class or type specifiers
fatal error C1004: unexpected end of file found

all three are on that line in my linklist.cpp file

thanks in advance

Stephen

now the files

three files are involved assembly.cpp, linklist.cpp, and linklist.h

assembly.cpp:
#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
#include <stdio.h>
#include <string.h>

// $C000 = 46152

int main()
{
ifstream infile("temp.txt");


return 0;
}


linklist.cpp
#include "linklist.h"
#include <stdio.h>
#include <string.h>


linklist::linklist()
{
char ctemp[5]={"zzzz"};
head=new llrecord;
strcpy(head->opcode, ctemp);
head->next=NULL;
}

linklist::~linklist()
{

}

void linklist::insert(llrecord x)
{
llrecord *llcurrent, *previous, *present;

llcurrent=first;
while(strcmp(x.opcode, llcurrent->opcode)>0)
{
previous=llcurrent;
llcurrent=llcurrent->next;
}
present=new llrecord;
strcpy(present->opcode, x.opcode);
strcpy(present->instruction, x.instruction);
present->numBytes=x.numBytes;
present->next=llcurrent;
if(llcurrent==first)
first=present;
else
previous->next=present;
return;
}

llrecord linklist::find(char ctemp[])
{
llrecord temp;

return temp;
}

bool linklist::eols(llrecord *)
{

}




linklist.h

#ifndef linklist_h
#define linklist_h

class linklist
{
public:

struct llrecord
{
char opcode[5];
int numBytes;
char instruction[10];
llrecord *next;
};

linklist();
~linklist();
void insert(llrecord);
llrecord find(char[]);
bool eols(llrecord *);

private:

llrecord *first;
llrecord *head;

};

#endif
 
M

Moonlit

Hi,


Dark Knight said:
Hello,

I am trying to create a linklist program and I am running into a problem
with this line:
Click to expand...
First all, creating a linked list is real easy like this.

#include <list>
using namespace std;
list<llrecord> LinkedList;

Thats, it!
llrecord linklist::find(char ctemp[])
Click to expand...


You should use it as follows, since llrecord is in the linklist scope:

linklist::llrecord linklist::find( char ctemp[] )

or way better:

linklist::llrecord linklist::find( const string& ctemp )

First try this maybe it solves the other errors too. (I didn;t scrutinize
the code).

Regards, Ron AF Greve.

I get three compile errors:

error C2143: syntax error: missing ';' before 'tag::id'
error C2501: 'llrecord':missing storage-class or type specifiers
fatal error C1004: unexpected end of file found

all three are on that line in my linklist.cpp file

thanks in advance

Stephen

now the files

three files are involved assembly.cpp, linklist.cpp, and linklist.h

assembly.cpp:
#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
#include <stdio.h>
#include <string.h>

// $C000 = 46152

int main()
{
ifstream infile("temp.txt");


return 0;
}


linklist.cpp
#include "linklist.h"
#include <stdio.h>
#include <string.h>


linklist::linklist()
{
char ctemp[5]={"zzzz"};
head=new llrecord;
strcpy(head->opcode, ctemp);
head->next=NULL;
}

linklist::~linklist()
{

}

void linklist::insert(llrecord x)
{
llrecord *llcurrent, *previous, *present;

llcurrent=first;
while(strcmp(x.opcode, llcurrent->opcode)>0)
{
previous=llcurrent;
llcurrent=llcurrent->next;
}
present=new llrecord;
strcpy(present->opcode, x.opcode);
strcpy(present->instruction, x.instruction);
present->numBytes=x.numBytes;
present->next=llcurrent;
if(llcurrent==first)
first=present;
else
previous->next=present;
return;
}

llrecord linklist::find(char ctemp[])
{
llrecord temp;

return temp;
}

bool linklist::eols(llrecord *)
{

}




linklist.h

#ifndef linklist_h
#define linklist_h

class linklist
{
public:

struct llrecord
{
char opcode[5];
int numBytes;
char instruction[10];
llrecord *next;
};

linklist();
~linklist();
void insert(llrecord);
llrecord find(char[]);
bool eols(llrecord *);

private:

llrecord *first;
llrecord *head;

};

#endif
Click to expand...
 
R

Ron Natalie

Dark Knight said:
Hello,

I am trying to create a linklist program and I am running into a problem
with this line:

llrecord linklist::find(char ctemp[])
Click to expand...

llrecord is not known at namespace (global) scope. It's a internal
type to linklist:
linklist::llrecord linklist::find(char* ctemp);
 
R

Ron Natalie

Dark Knight said:
Hello,

I am trying to create a linklist program and I am running into a problem
with this line:

llrecord linklist::find(char ctemp[])

I get three compile errors:

error C2143: syntax error: missing ';' before 'tag::id'
error C2501: 'llrecord':missing storage-class or type specifiers
fatal error C1004: unexpected end of file found

all three are on that line in my linklist.cpp file

thanks in advance

Stephen

now the files

three files are involved assembly.cpp, linklist.cpp, and linklist.h

assembly.cpp:
#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
#include <stdio.h>
#include <string.h>

// $C000 = 46152

int main()
{
ifstream infile("temp.txt");


return 0;
}


linklist.cpp
#include "linklist.h"
#include <stdio.h>
#include <string.h>


linklist::linklist()
{
char ctemp[5]={"zzzz"};
head=new llrecord;
strcpy(head->opcode, ctemp);
head->next=NULL;
}

linklist::~linklist()
{

}

void linklist::insert(llrecord x)
{
llrecord *llcurrent, *previous, *present;

llcurrent=first;
while(strcmp(x.opcode, llcurrent->opcode)>0)
{
previous=llcurrent;
llcurrent=llcurrent->next;
}
present=new llrecord;
strcpy(present->opcode, x.opcode);
strcpy(present->instruction, x.instruction);
present->numBytes=x.numBytes;
present->next=llcurrent;
if(llcurrent==first)
first=present;
else
previous->next=present;
return;
}

llrecord linklist::find(char ctemp[])
{
llrecord temp;

return temp;
}

bool linklist::eols(llrecord *)
{

}




linklist.h

#ifndef linklist_h
#define linklist_h

class linklist
{
public:

struct llrecord
{
char opcode[5];
int numBytes;
char instruction[10];
llrecord *next;
};

linklist();
~linklist();
void insert(llrecord);
llrecord find(char[]);
bool eols(llrecord *);

private:

llrecord *first;
llrecord *head;

};

#endif
Click to expand...
 
S

Stanley Yue

Dark Knight said:
Hello,

I am trying to create a linklist program and I am running into a problem
with this line:

llrecord linklist::find(char ctemp[])

I get three compile errors:

error C2143: syntax error: missing ';' before 'tag::id'
error C2501: 'llrecord':missing storage-class or type specifiers
fatal error C1004: unexpected end of file found

all three are on that line in my linklist.cpp file

thanks in advance

Stephen

now the files

three files are involved assembly.cpp, linklist.cpp, and linklist.h

assembly.cpp:
#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
#include <stdio.h>
#include <string.h>

// $C000 = 46152

int main()
{
ifstream infile("temp.txt");


return 0;
}


linklist.cpp
#include "linklist.h"
#include <stdio.h>
#include <string.h>


linklist::linklist()
{
char ctemp[5]={"zzzz"};
head=new llrecord;
strcpy(head->opcode, ctemp);
head->next=NULL;
}

linklist::~linklist()
{

}

void linklist::insert(llrecord x)
{
llrecord *llcurrent, *previous, *present;

llcurrent=first;
while(strcmp(x.opcode, llcurrent->opcode)>0)
{
previous=llcurrent;
llcurrent=llcurrent->next;
}
present=new llrecord;
strcpy(present->opcode, x.opcode);
strcpy(present->instruction, x.instruction);
present->numBytes=x.numBytes;
present->next=llcurrent;
if(llcurrent==first)
first=present;
else
previous->next=present;
return;
}


llrecord linklist::find(char ctemp[])
Click to expand...
**** you should write this sentence like this:

linklist::llrecord linklist::find(char ctemp[])

The reason is llrecord is a member struct of linklist ,so you must
add "linklist::" before it. it will tell compiler the struct llrecord
belongs to linklist.

{
llrecord temp;
Click to expand...

****local variable 'temp' used without having been **initialized**
return temp;
}

bool linklist::eols(llrecord *)
{
Click to expand...
****here: you must give it a return
}




linklist.h

#ifndef linklist_h
#define linklist_h

class linklist
{
public:

struct llrecord
{
char opcode[5];
int numBytes;
char instruction[10];
llrecord *next;
};

linklist();
~linklist();
void insert(llrecord);
llrecord find(char[]);
bool eols(llrecord *);

private:

llrecord *first;
llrecord *head;

};

#endif
Click to expand...
 
S

Samuel Barber

Dark Knight said:
assembly.cpp:
#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
#include <stdio.h>
#include <string.h>

// $C000 = 46152
Click to expand...

There's your problem. Try this:
// $C000 = 49152

Sam
 

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