Stdio h C Tutorial

Item Value
Header filestdio.h
Declarationint fclose(FILE *stream);
FunctionCloses the file and flushes its buffer. Trying to close a file that has already been closed is an error.
Return valueIf successful, zero is returned, or EOF is returned.

#include 
  #include 
  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;
  }