Counting program

Hey guys, I am in the process of a program that counts integers I can do this by looking for the int keywork and then incrementing a variable although if an integers are implemented as:

int j,k,l;

I am not sure how to count this as 3 ints, I know I will need some form of loop that reads until the next comma and ends at the semicolon but I have no idea what kind of loop would be of use or how to implement it.

Any advice would be great,

Thank you.

Ok, what I would do: I would first read in the whole line, after that I would make sure we are dealing 1 or more int-variables. Now after that I would count the number of commas, as you may notice, the number of variables equals the number of commas+1. For that you only need 1 loop that goes something like this (pseudocode)

Code:

---

Read line
if line is creating variables  // Is it a line creating variables??
  // We want 1 because we know we have at least 1 variable
  variableCount = 1   
  for i = offsetToFirstVarName; i<sizeOfLine || line[i] == ';'; i++
    if line[i] == ','
      variableCount++

---

That's how i would do it.

Start off by reading whitespace seperated words until you come across "int". Then, call getline(file,buffer,';'); or the equivalent to read into a string buffer from your file up to the next ';' character. In the example you gave above, this would result in buffer containing " j,k,l". Next, initialize a stringstream with that buffer. Then, use a while loop calling getline from your stringstream buffer into some temp/garbage string with ',' as the character delimiter. The body of the while loop should just a call to increment the counter.

There can be complications however, consider what might occur if your file contains the following:

Code:

---

cout << "Hello int a,b,c" << endl;

---

Or...

Code:

---

#define myvar int
float foo;
myvar j,k,l;

---

Or...

Code:

---

int foo(int bar1,int bar2)
{
    float bar4;
    int bar3;
    ...
}

---

Your program can quickly become much more complex if you need to account for all these (and more) situations.

Quote:

---

Originally Posted by Shakti

Ok, what I would do: I would first read in the whole line, after that I would make sure we are dealing 1 or more int-variables. Now after that I would count the number of commas, as you may notice, the number of variables equals the number of commas+1. For that you only need 1 loop that goes something like this (pseudocode)

Code:

---

Read line
if line is creating variables  // Is it a line creating variables??
  // We want 1 because we know we have at least 1 variable
  variableCount = 1   
  for i = offsetToFirstVarName; i<sizeOfLine || line[i] == ';'; i++
    if line[i] == ','
      variableCount++

---

That's how i would do it.

---

Hi so would it be something like this?

Code:

---


char array [200];
ifstream file;

file.open(filel);

        if (file.is_open())

        {
            while (file.getline( array, sizeof(array) ))
                  {
                              if ( strstr ( array, "int" ) != 0 )
                        {
                                fint++;
                          for (i =0, i <sizeof(array) || line [i]==';' ; i++ // not sure what line[] is

                            if (line[i]==',')
                                fint++
                          }
            }

---

This doesn't work but am I getting close?

Hey guys Im still really having problems with this code could someone point out where I have went wrong? Thanks.

You're not supposed to bump threads.

Code:

---

for (i =0, i <sizeof(array) || line [i]==';' ; i++ // not sure what line[] is

---

->

Code:

---

for (i =0; i <sizeof(array) || line [i]==';' ; i++) // not sure what line[] is

---

Does that help?

I now have the following code but its still not working, any suggestions?

Code:

---

char array [200];
ifstream file;

file.open(filel);

        if (file.is_open())

        {
            while (file.getline( array, sizeof(array) ))
                  {
                              if ( strstr ( array, "int" ) != 0 )
                        {
                                fint++;
                          for (i =0; i <sizeof(array)  ; i++)

                            if (array[i]==',')
                                fint++
                                if (array[i]==';')
                                break;
                          }
            }

---