C Tutorial/stdio.h/fclose

fclose

Item Value Header file stdio.h Declaration int fclose(FILE *stream); Function Closes the file and flushes its buffer. Trying to close a file that has already been closed is an error. 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;
  }