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/*
FUNCTION
<<remove>>---delete a file's name
 
INDEX
	remove
 
ANSI_SYNOPSIS
	#include <stdio.h>
	int remove(char *<[filename]>);
 
	int _remove_r(void *<[reent]>, char *<[filename]>);
 
TRAD_SYNOPSIS
	#include <stdio.h>
	int remove(<[filename]>)
	char *<[filename]>;
 
	int _remove_r(<[reent]>, <[filename]>)
	char *<[reent]>;
	char *<[filename]>;
 
DESCRIPTION
Use <<remove>> to dissolve the association between a particular
filename (the string at <[filename]>) and the file it represents.
After calling <<remove>> with a particular filename, you will no
longer be able to open the file by that name.
 
In this implementation, you may use <<remove>> on an open file without
error; existing file descriptors for the file will continue to access
the file's data until the program using them closes the file.
 
The alternate function <<_remove_r>> is a reentrant version.  The
extra argument <[reent]> is a pointer to a reentrancy structure.
 
RETURNS
<<remove>> returns <<0>> if it succeeds, <<-1>> if it fails.
 
PORTABILITY
ANSI C requires <<remove>>, but only specifies that the result on
failure be nonzero.  The behavior of <<remove>> when you call it on an
open file may vary among implementations.
 
Supporting OS subroutine required: <<unlink>>.
*/
 
#include <stdio.h>
#include <reent.h>
 
int
_remove_r (ptr, filename)
     struct _reent *ptr;
     _CONST char *filename;
{
  if (_unlink_r (ptr, filename) == -1)
    return -1;
 
  return 0;
}
 
#ifndef _REENT_ONLY
 
int
remove (filename)
     _CONST char *filename;
{
  return _remove_r (_REENT, filename);
}
 
#endif