Count Spaces in a Text File – Computer Sir Ki Class

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Solved Problem #CPP#5036    siteicon   siteicon  

Problem Statement - Count Spaces in a Text File

Write a function to count and return the number of space characters present in the filename passed to it as an argument. Also show implementation of this function in the main routine using NOTES.TXT file that contain the following data

This is first line
This is second line
This is third line

Solution

TC++ #5036

 

Run Output

No. of spaces in given file =  9

#include <fstream.h> //This include file is required to support ifstream class

int countspaces(char fname[]) {
Passing fname as character array that would contain user given filename. Returning int data type that would contain the count of space characters.

ifstream ipfile(fname,ios::in); //Opening the filestream in input mode for the filename passed as function argument.

if(!ipfile) return -1;
This line checks for file presence or openability so that errors can be avoided later. return value is set as -1 as normal return value when word is found or not found will be 0 or greatet.

int c=0; //This would contain the word count thus initialised to 0 in the beginning.

while(!ipfile.eof()) { //This loop runs until end of file is not reached.

char ch=’\0′; //The ch char type variable is initialised with null character within loop so that after count it is initialised. This helps in false count returning when nothing is there in the file.
ipfile.get(ch);
//Getting one character from the file/
if(ch==’ ‘) c++;
//If the character is a space count is increased
}
ipfile.close();  //File is closed
return c;  //space count is returned. if there is no space in file 0 would be returned.
}

int main() {
int c=countspaces(“NOTES.TXT”); //The filename is passed to the given function and then the wordcount will come in variable c.
if(c==-1) {cout<<“Unable to open file”<<endl; return 1;} //if -1 is returned then file was not possible to open.
cout<<“No. of spaces in given file = “<<c<<endl; //space count is printed.
return 0;
}

Notes

  • This code can be tested on your local system only once a file with given content is created with its name as NOTES.TXT
  • It is always a good practice to check if the file has been opened properly. It will not open properly in many cases. One can reach the OS by returning an error to the operating system.
  • For DOS testing with TurboC environment, learners are advised to keep the input file in the BIN directory are the turboc program runs from there.


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CSKC| Created: 25-Nov-2018 | Updated: 25-Nov-2018|






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