Measuring blank spaces from a text file

[rajhansk]

I have written the following code
On line number 19, Input_file>>line ;
this only take first word of file, how do I proceed??

  #include<iostream>
#include<locale>
#include<fstream>
#include<string>
using namespace std;
int main()
{
    ifstream Input_file;
    string line;
    int counter=0;
    char c;
    locale LOC;
    Input_file.open("example.txt");
    if(Input_file.fail())
    {
        cout<<"File is not open";
    }

Input_file>>line;
 
    for(string::size_type i=0;i<line.length();i++)
    {
        c=line[i];
        if(isspace(c,LOC))counter++;
    }
  
    cout<<counter;
    return 0;
}

[Chervil]

See the example of using getline() to read from a file on this tutorial page:
http://www.cplusplus.com/doc/tutorial/files/

[rajhansk]

Thanks , it worked...

but if I want to measure black spaces from next line??

There is are several line inside that text file...

[keskiverto]

Do look at the description of skipws/noskipws from:
http://www.cplusplus.com/reference/istream/basic_istream/operator%3E%3E/


You could also read the file one character at a time.

[Chervil]

but if I want to measure black spaces from next line??

There is are several line inside that text file..

The example which I linked previously does read all the lines from the file, using a while loop.

    while ( getline (myfile,line) )
    {
      cout << line << '\n';
    }

What you could do, inside the loop where it says

      cout << line << '\n';

is to add your code to process the string line.

[rajhansk]

ohhh thanks , it worked...

:) :) :)