mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-24 07:31:32 +00:00
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/*
|
|
FUNCTION
|
|
<<duplocale>>---duplicate a locale object
|
|
|
|
INDEX
|
|
duplocale
|
|
|
|
INDEX
|
|
_duplocale_r
|
|
|
|
ANSI_SYNOPSIS
|
|
#include <locale.h>
|
|
locale_t duplocale(locale_t <[locobj]>);
|
|
|
|
locale_t _duplocale_r(void *<[reent]>, locale_t <[locobj]>);
|
|
|
|
DESCRIPTION
|
|
The <<duplocale>> function shall create a duplicate copy of the locale
|
|
object referenced by the <[locobj]> argument.
|
|
|
|
If the <[locobj]> argument is LC_GLOBAL_LOCALE, duplocale() shall create
|
|
a new locale object containing a copy of the global locale determined by
|
|
the setlocale() function.
|
|
|
|
The behavior is undefined if the <[locobj]> argument is not a valid locale
|
|
object handle.
|
|
|
|
RETURNS
|
|
Upon successful completion, the <<duplocale>> function shall return a
|
|
handle for a new locale object. Otherwise <<duplocale>> shall return
|
|
(locale_t) <<0>> and set errno to indicate the error.
|
|
|
|
PORTABILITY
|
|
<<duplocale>> is POSIX-1.2008.
|
|
*/
|
|
|
|
#include <newlib.h>
|
|
#include <reent.h>
|
|
#include <stdlib.h>
|
|
#include "setlocale.h"
|
|
|
|
struct __locale_t *
|
|
_duplocale_r (struct _reent *p, struct __locale_t *locobj)
|
|
{
|
|
struct __locale_t tmp_locale, *new_locale;
|
|
int i;
|
|
|
|
#ifndef _MB_CAPABLE
|
|
return __get_C_locale ();
|
|
#else /* _MB_CAPABLE */
|
|
/* LC_GLOBAL_LOCALE denotes the global locale. */
|
|
if (locobj == LC_GLOBAL_LOCALE)
|
|
locobj = __get_global_locale ();
|
|
/* The "C" locale is used statically, never copied. */
|
|
else if (locobj == __get_C_locale ())
|
|
return __get_C_locale ();
|
|
/* Copy locale content. */
|
|
tmp_locale = *locobj;
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
for (i = 1; i < _LC_LAST; ++i)
|
|
if (locobj->lc_cat[i].buf)
|
|
{
|
|
/* If the object is not a "C" locale category, copy it. Just call
|
|
__loadlocale. It knows what to do to replicate the category. */
|
|
tmp_locale.lc_cat[i].ptr = NULL;
|
|
tmp_locale.lc_cat[i].buf = NULL;
|
|
if (!__loadlocale (&tmp_locale, i, tmp_locale.categories[i]))
|
|
goto error;
|
|
}
|
|
#endif /* __HAVE_LOCALE_INFO__ */
|
|
/* Allocate new locale_t. */
|
|
new_locale = (struct __locale_t *) _calloc_r (p, 1, sizeof *new_locale);
|
|
if (!new_locale)
|
|
goto error;
|
|
|
|
*new_locale = tmp_locale;
|
|
return new_locale;
|
|
|
|
error:
|
|
/* An error occured while we had already (potentially) allocated memory.
|
|
Free memory and return NULL. errno is supposed to be set already. */
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
while (--i > 0)
|
|
if (tmp_locale.lc_cat[i].buf)
|
|
{
|
|
_free_r (p, (void *) tmp_locale.lc_cat[i].ptr);
|
|
_free_r (p, tmp_locale.lc_cat[i].buf);
|
|
}
|
|
#endif /* __HAVE_LOCALE_INFO__ */
|
|
|
|
return NULL;
|
|
#endif /* _MB_CAPABLE */
|
|
}
|
|
|
|
#ifndef _REENT_ONLY
|
|
struct __locale_t *
|
|
duplocale (struct __locale_t *locobj)
|
|
{
|
|
return _duplocale_r (_REENT, locobj);
|
|
}
|
|
#endif
|