Friday, May 17, 2013

Searching Simple Word In A File In C - C And C++ | Dream.In.Code


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    4 Replies - 98 Views - Last Post: Yesterday, 06:57 PM Rate Topic: -----

    #1 iostreamstdio ?Icon User is offline

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    Posted Yesterday, 07:52 AM

    
#include<stdio.h> #include<conio.h> #include<string.h> void main() { FILE *fp; char str[50],ch,temp[50]; int i; printf("enter the word to be searched"); gets(str); fp=fopen("file.txt","r"); if(fp==NULL) { 	printf("cant open file"); 	getch(); 	exit(); } else { 	while((ch=fgetc(fp))!=EOF) 	{ 	i=0; 	while(ch!=' ') 	{ 	temp[i]=ch; 	i++; 	ch=fgetc(fp); 	}  	temp[i]='\0'; 	if((strcmp(str,temp))==0) 	{ 	printf("found"); 	}  	} }  fclose(fp); getch(); }

    After running this code it is not able to come out of the ouput screen after searching the required word. And I am not able to find anything wrong in it. Please help.


    Is This A Good Question/Topic? 0

    Replies To: searching simple word in a file in c

    #2 ccubed ?Icon User is offline

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    Re: searching simple word in a file in c

    Posted Yesterday, 08:31 AM

    Well first of all, you never ever clear temp.

    Secondly, Can you kind of explain what you mean by 'doesn't leave the output screen?' Do you mean it doesn't close? Or that your find loop runs forever? Or what?

    This post has been edited by ccubed: Yesterday, 08:32 AM


    #3 #define ?Icon User is offline

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    Re: searching simple word in a file in c

    Posted Yesterday, 03:52 PM

    Possibly the words could be at the end of a line or the end of the file, so you may have to check for a newline and EOF here as well.
    
 23	    while(ch!=' ') 

    isspace


    #4 iostreamstdio ?Icon User is offline

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    Re: searching simple word in a file in c

    Posted Yesterday, 06:51 PM

    View Postccubed, on 15 May 2013 - 08:31 AM, said:

    Well first of all, you never ever clear temp.

    Secondly, Can you kind of explain what you mean by 'doesn't leave the output screen?' Do you mean it doesn't close? Or that your find loop runs forever? Or what?


    I mean it doesn't close. It gets stuck after displaying "found". It is not responding to any key of the keyboard.

    #5 iostreamstdio ?Icon User is offline

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    Re: searching simple word in a file in c

    Posted Yesterday, 06:57 PM

    View Post#define, on 15 May 2013 - 03:52 PM, said:

    Possibly the words could be at the end of a line or the end of the file, so you may have to check for a newline and EOF here as well.
    
 23	    while(ch!=' ') 

    isspace


    Thanks a lot. It is now working. :)

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