how to detect end of line \n c++ urgent

[sarada purkait]

hiii
i am trying to read a file which has data in the form of an array .. to count the number of lines i need to count number of \n ... but i m unable to do so ..
char ch;
while(infile>>ch)
{

if(ch=='\n')
cout<<" end ";
else
cout<<" cont. ";

c++;
}
infile.close();
cout<<" c="<<c;
it does not detect \n ...
please help .
i am pretty new to c++.... please reply as soon as poss.. :)

[Savage]

hiii
i am trying to read a file which has data in the form of an array .. to count the number of lines i need to count number of \n ... but i m unable to do so ..
char ch;
while(infile>>ch)
{

if(ch=='\n')
cout<<" end ";
else
cout<<" cont. ";

c++;
}
infile.close();
cout<<" c="<<c;
it does not detect \n ...
please help .
i am pretty new to c++.... please reply as soon as poss.. :)

That's because of >> operator.This operator breakes extraction from file when it encounters whitespace,use getline instead..

Savage

[sarada purkait]

That's because of >> operator.This operator breakes extraction from file when it encounters whitespace,use getline instead..

Savage

can i get the characters without the spaces .. ?? into an array ..??

[sarada purkait]

can i get the characters without the spaces .. ?? into an array ..??

i am reading the array once using getline .. to get no. of lines . .. then again the total number of characters ( by >>)... then i divide the two to get no. of columns.. then i am reading al the characters in the file into an array using >> .. each time i have to use a differnt stream , otherwise there is failure in opening the file ..
is dere a simpler way out..???

[ProgrammerMatt]

You will need two streams to read and write to the file, if memory serves correctly. However, you could use a string to store every line you read using getline and then use a length function to find the length of the string (# of characters). That eliminates one stream. Hope that helps.

[weaknessforcats]

You may be making this too hard.

1) the file has the strings
2) you need to read the stirngs into an array
3) this is C++. The array is implemented by vector
Ergo: read the strings into a vector.

ifstream input("data.txt");
char buffer[256];
string str;
vector<string> array;
while (!input.eof())
{
    input.getline(buffer, 256);        
    str = buffer;
    array.push_back(str);
}