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Top Forums Programming Unexplained segmentation fault Post 302508064 by haritha.gorijav on Friday 25th of March 2011 02:41:10 PM
Old 03-25-2011
Unexplained segmentation fault

Hi, The following code reads 20 characters from one file and writes them (appends them) to the other file. The code works in Turbo C++ on windows but it shows segmentation fault on Linux. I am using Ubuntu 10.10 and gcc compiler.
Please tell me where I was wrong.

Code:
#include<stdio.h> 
 
void main() 
{ 
char* buf; 
char c; 
FILE * fp; 
FILE * fp2; 
int k; 
fp=fopen("sample","r"); 
fp2=fopen("sample1","a"); 
buf=fgets(buf,20,fp); 
while(buf!=NULL) 
{ 
k=fputs(buf,fp2); 
printf("%s\n",buf); 
buf=fgets(buf,20,fp); 
} 
 
}

Thanks for your help.Smilie
 

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