C program to Count characters of file

Below is C program to Count characters of file .

Program:

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/* Count characters of file */   #include<stdio.h> int main() {  FILE *fp;  char a[10];  long cnt=0;  int c;    printf("Type a file name : ");  gets(a);     if((fp=fopen(a,"r"))==NULL)   printf("File dosen't exist.");  else  {   while(1)   {    c=fgetc(fp);    if(feof(fp)) break;    cnt++;   }   printf("\nfile have %ld characters",cnt);  }  fclose(fp);  return 0; }