newlib-cygwin/newlib/libc/locale/freelocale.c

65 lines
1.4 KiB
C

/*
FUNCTION
<<freelocale>>---free resources allocated for a locale object
INDEX
freelocale
INDEX
_freelocale_r
SYNOPSIS
#include <locale.h>
locale_t freelocale(locale_t <[locobj]>);
locale_t _freelocale_r(void *<[reent]>, locale_t <[locobj]>);
DESCRIPTION
The <<freelocale>> function shall cause the resources allocated for a
locale object returned by a call to the <<newlocale>> or <<duplocale>>
functions to be released.
The behavior is undefined if the <[locobj]> argument is the special locale
object LC_GLOBAL_LOCALE or is not a valid locale object handle.
Any use of a locale object that has been freed results in undefined
behavior.
RETURNS
None.
PORTABILITY
<<freelocale>> is POSIX-1.2008.
*/
#include <newlib.h>
#include <reent.h>
#include <stdlib.h>
#include "setlocale.h"
void
_freelocale_r (struct _reent *p, struct __locale_t *locobj)
{
/* Nothing to do on !_MB_CAPABLE targets. */
#ifdef _MB_CAPABLE
/* Sanity check. The "C" locale is static, don't try to free it. */
if (!locobj || locobj == __get_C_locale () || locobj == LC_GLOBAL_LOCALE)
return;
#ifdef __HAVE_LOCALE_INFO__
for (int i = 1; i < _LC_LAST; ++i)
if (locobj->lc_cat[i].buf)
{
_free_r (p, (void *) locobj->lc_cat[i].ptr);
_free_r (p, locobj->lc_cat[i].buf);
}
#endif /* __HAVE_LOCALE_INFO__ */
_free_r (p, locobj);
#endif /* _MB_CAPABLE */
}
void
freelocale (struct __locale_t *locobj)
{
_freelocale_r (_REENT, locobj);
}