ccplusplus.com: c program to count number of lines in a file

Friday, January 6, 2012

c program to count number of lines in a file

/*******************************************************************
 * File         :   count-characters-file.c
 * Author       :   Saurabh Gupta
 * Description  :   c program to count number of lines in a file
 * Date         :   PM 11:17 06 January 2012
 * Source       :   http://www.ccplusplus.com/p/c.html
 * ToDo         :   try to remove gets
 *******************************************************************/
 
 #include <stdio.h>

void main() 
 {
    FILE *fopen(), *fp; 
    int c , nc, nlines; 
    char filename[40] ;
    nlines = 0 ; 
    nc = 0;  
    printf("Enter file name: "); 
    gets( filename ); 
    fp = fopen( filename, "r" );     
    if ( fp == NULL ) 
    { 
        printf("Cannot open %s for reading \n", filename ); 
        exit(1);      /* terminate program */ 
    }  
    c = getc( fp ) ;         
    while (  c != EOF ) 
    { 
        if ( c  ==  '\n'  ) 
        nlines++ ; 
        nc++ ;  
        c = getc ( fp ); 
    } 
    fclose( fp );  
    if ( nc != 0 ) 
    { 
        printf("There are %d characters in %s \n", nc, filename ); 
        printf("There are %d lines \n", nlines ); 
    } 
    else
    {    
        printf("File: %s is empty \n", filename ); 
    }
 } 
/*
 *
 *
 [sgupta@rhel6x64 file-handling]$ gcc count-characters-file.c -o count-characters-file
 [sgupta@rhel6x64 file-handling]$ ./count-characters-file
 Enter file name: ccplusplus.com
 There are 93 characters in ccplusplus.com
 There are 3 lines
 [sgupta@rhel6x64 file-handling]$
 */

2 comments:

Ashutosh TripathiJanuary 30, 2012 at 12:37 AM
// Author-- Ashutosh Tripathi
// www.facebook.com/omi.pro

#include
#include
void main()
{
FILE *fp; int c, ct_lines;
ct_lines = 0;
fp = fopen("foo.txt", "rb");
do {
c = fgetc(fp);
if (c == '\n')
ct_lines++;
} while (c != EOF);
fclose(fp);
printf("Number of lines are: %d"ct_lines);
getch();
}
ReplyDelete
Replies

Add comment