linux中的C段错误（核心转储）错误

Question

#include <stdio.h>
#include <stdlib.h>

struct fileIndex{
    char name;
    int key;
} index1;

int main(int argc, char *argv[]){

    int i;
    FILE *pFile;

    pFile= fopen("cat/home/sysadmin/deneme.txt","r");



    for(i=0; i<10; i++){
        printf("%c",fgetc(pFile));
    }
    fclose(pFile);

}

When I want to run my program, it gives that error. I looked so long for a wrong line in code, but I didn't find any. Can you help me ?

Answer 1

If the file failed to open, that will make pFile equal NULL , which can easily cause fgetc() to segfault.

You must check for this before trying to read from the file:

if (pfile == NULL)
{
  perror("Failed to open file");
  exit(1);
}

Answer 2

change your code as

int i;
FILE *pFile;

pFile= fopen("cat/home/sysadmin/deneme.txt","r");

if(!pFile)
  return;

Also.. looks like you file path is misplaced... are your meant t ouse /cat/home/sysadmin/deneme.txt

Is cat your current directory or part of absolute path