i am unable to fix the error 'expected primary exp before public in my program
Aug 16, 2013 at 4:52pm UTC
how do i fix the errors expected primary expression before public and also expected '}'before else error pls help
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# include<iostream>
#include<fstream>
#include<sstream>
using namespace std;
template <class A>
class Array
{
int siz;
public :
A *a;
void create_array(int cap)
{
if (cap>0)
{
a=new A[cap];
siz=cap;
}
else
{
cout<<"the size is wrong" ;
}
}
void store(A values,int index)
{
if (index<siz&&index>=0)
a[index]=values;
else
cout<<"invalid index" ;
}
A retrieve(int index)
{
if (index<siz&&index>=0)
return a[index];
else
cout<<"inavalid index" ;
}
};
template <class S>
class stacks
{
Array <S>obj;
int top;
int capacity;
public :
stacks()
{
top=0;
capacity=0;
}
void create_stack(int s)
{
capacity=s;
top=0;
obj.create_array(s);
}
void push(S value)
{
if (!isFull())
{
obj.store(value,top);
top+=1;
}
else
cout<<"stack overflow" ;
}
S pop()
{
if (top!=0)
{
top-=1;
return obj.retrieve(top);
}
else
cout<<"stack underflow" ;
}
bool isFull()
{
if (top==capacity)
return true ;
else
return false ;
}
bool isEmpty()
{
if (top==0)
return true ;
else
return false ;
}
};
template <class Q>
class queues
{
int cap;
int head,tail;
Array<Q>obj;
void create_queue(int size)
{
if (size>0)
{
cap=size;
obj.create_array(size);
head=0;
tail=0;
}
else
cout<<"invalid size" <<endl;
}
bool isEmpty()
{
if (head==0&&tail==0)
return true ;
return false ;
}
bool isFull()
{
if (tail==cap)
return true ;
return false ;
}
void enqueue(Q value)
{
if (head==0&&!isFull())
{
obj.store(value,tail);
tail+=1;
}
else if (!isFull())
{
int i;
while (head!=0)
{
for (i=head;i<tail;i++)
obj.a[i-1]=obj.a[i];
head-=1;
tail-=1;
}
obj.store(value,tail);
tail+=1;
}
else
cout<<"queue full" <<'\n' ;
}
Q dequeue()
{
if (!isEmpty())
{
Q val=obj.retrieve(head);
head+=1;
return val;
}
else
{
cout<<"queue empty" <<'\n' ;
}
}
};
//template<class T>
class fileinp
{
public :
void readme()
{
ifstream inf("input.txt" );
string strinput;
string adt;
int value;
while (!inf.eof())
{
inf>>strinput;
if (strinput.compare("stack" )==0)
{
adt="stack" ;
inf>>strinput;
// public:
if (strinput.compare("int" )==0)
{
stacks<int > obj1;
}
else
if (strinput.compare("float" )==0)
{
stacks <float > obj1;
}
else
if (strinput.compare("double" )==0)
{
stacks <double > obj1;
}
else
if (strinput.compare("char" )==0)
{
stacks<char > obj1;
}
else
{
stacks<int > obj1;
}
}
else
{
if (strinput.compare("queue" )==0)
{
adt="queue" ;
inf>>strinput;
public :
if (strinput.compare("int" )==0)
{
queues<int > obj1;
}
else if (strinput.compare("float" )==0)
{
queues<float > obj1;
}
else if (strinput.compare("double" )==0)
{
queues<double > obj1;
}
else if (strinput.compare("char" )==0)
{
queues<char > obj1;
}
else
{
queues<int > obj1;
}
}
}
};
while (!inf.eof())
{
inf>>strinput;
if (adt.compare("stack" )==0&&strinput.compare("push" )==0)
{
inf>>strinput;
istringstream (strinput) >> value;
obj1.push(value);
}
else if (adt.compare("stack" )==0&&strinput.compare("pop" )==0)
{
cout<<"the value popped is" <<obj1.pop();
}
else if (adt.compare("queue" )==0&&strinput.compare("enqueue" )==0)
{
inf>>strinput;
istringstream(strinput) >> value;
obj1.enqueue(value);
}
else if (adt.compare("queue" )==0&&strinput.compare("dequeue" )==0)
{
cout<<"the value dequeued is" <<obj1.dequeue();
}
else
inf>>strinput;
}
}
};
int main()
{
int s;
stacks <int >obj2;
cin>>s;
cout<<"size is " <<s<<'\n' ;
obj2.create_stack(s);
obj2.push(10);
obj2.push(5);
int k=obj2.pop();
cout<<k;
fileinp obj;
obj.readme();
return 0;
};
Put the code you need help with here.
Aug 16, 2013 at 4:56pm UTC
What is "public:" doing on line 211?
Did you bother to look at the line indicated in the error message? Why did you not post the actual error message with the line number in it instead of making us search through 280 lines of code? If you want help, provide all relevant information.
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