C/stdio.h/fclose

fclose: Closes the file and flushes its buffer

<source lang="cpp"> //Declaration : int fclose(FILE *stream); //Return value: If successful, zero is returned, or EOF is returned.

 #include <stdio.h>
 #include <stdlib.h>
 int main(void)
 {
   FILE *fp;
   if((fp=fopen("test", "rb"))==NULL) {
     printf("Cannot open file.\n");
     exit(1);
   }
   if(fclose(fp))
       printf("File close error.\n");
   return 0;
 }
          
      </source>