C++ error: expected primary-expression before ‘}’ token - c++

Question

I am trying to call a void function named correction(original,corrected) and when I'm trying to compile it I get a couple of errors of the form:
error: expected primary-expression before ‘}’ token
Here is my complete code:
#include <cstdio>
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
using namespace std;
void correction(ifstream& original,ofstream& corrected);
int main ()
{
ifstream original;
ofstream corrected;
char filename[16];
cout<<"Enter filename:\n";
cin>>filename;
original.open(filename);
corrected.open("corrected.txt");
if (original.fail( ))
{
cout << "Input file opening failed.\n";
exit(1);
}
if (corrected.fail( ))
{
cout << "Input file opening failed.\n";
exit(1);
}
else
{
correction(original,corrected);
}
return 0;
}
void correction(ifstream& original,ofstream& corrected)
{
char symbol;
while(! original.eof())
{
original.get(symbol);
if (symbol== 'c')
{
corrected.put(symbol);
original.get(symbol);
if (symbol=='i')
{
corrected.put(symbol);
original.get(symbol);
if (symbol=='n')
{
corrected.put(symbol);
original.get(symbol);
while (symbol==' ')
{
original.get(symbol);
}
for (symbol=='<')
{
corrected.put('>');
original.get(symbol);
}
corrected.put(symbol);
}
}
if (symbol=='o')
{
corrected.put(symbol);
original.get(symbol);
if (symbol=='u')
{
corrected.put(symbol);
original.get(symbol);
if (symbol=='t')
{
corrected.put(symbol);
original.get(symbol);
while (symbol==' ')
{
original.get(symbol);
}
for (symbol=='>')
{
corrected.put('<');
original.get(symbol);
}
corrected.put(symbol);
}
}
}
}
else
corrected.put(symbol);
}
return;
}
When I try to compile this code I get the following errors:
operators.cpp:59:23: error: expected ‘;’ before ‘)’ token
for (symbol=='<')
^ operators.cpp:65:5: error: expected primary-expression before ‘}’ token
}
^ operators.cpp:65:5: error: expected ‘)’ before ‘}’ token > >operators.cpp:65:5: error: expected primary-expression before ‘}’
token
operators.cpp:65:5: error: expected ‘;’ before ‘}’ token
operators.cpp:83:20: error: expected ‘;’ before ‘)’ token
for (symbol=='>')
^ operators.cpp:89:9: error: expected primary-expression before ‘}’ token
}
^ operators.cpp:89:9: error: expected ‘)’ before ‘}’ token operators.cpp:89:9: error: expected primary-expression before ‘}’
token operators.cpp:89:9: error: expected ‘;’ before ‘}’ token
I am kind of new to programming and have spent a couple of hours trying to fix it but I don't understand what the problem is.
Any kind of help is greatly appreciated!

Answer 1

Added later after looking closely at #liup's answer:
Ouch, my bad, the OP probably indeed meant to use a loop here! Then, you can use the while loop like so:
while (symbol=='<')
and
while (symbol=='>')
Old answer:
Here:
if (symbol=='<')
and here:
if (symbol=='>')
Instead of for (symbol=='<') and for (symbol=='>').
The error stems from the fact that in a for loop, you must have all the three clauses, even if they are empty, hence two semicolons ; are obligatory. You only provided one didn't provide a single semicolon in each of the two incorrect for statements.
For reference, see for loop description at cppreference

Answer 2

Both for (symbol=='<') and for (symbol=='>') for loop syntax is wrong. In this scenario you can use for loop as follows.
for (; symbol == '<';)
{
corrected.put('>');
original.get(symbol);
}
for (; symbol == '>';)
{
corrected.put('<');
original.get(symbol);
}
OR
for (; symbol == '<';original.get(symbol))
{
corrected.put('>');
}
for (; symbol == '>';original.get(symbol))
{
corrected.put('<');
}