vasilito
068a1ca63e
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
P1 timeout/default-resolution, P2 live preload guard (subsumed by
panic fixes + cap), P3 live image safe read, P4 large ISO boot,
redox.patch — to be applied in dedicated rebase session.
firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).
fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.
fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/* Test for initial conversion state.
|
|
Copyright (C) 2008-2025 Free Software Foundation, Inc.
|
|
Written by Bruno Haible <bruno@clisp.org>, 2008.
|
|
|
|
This file is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as
|
|
published by the Free Software Foundation; either version 2.1 of the
|
|
License, or (at your option) any later version.
|
|
|
|
This file is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#include <config.h>
|
|
|
|
/* Specification. */
|
|
#include <wchar.h>
|
|
|
|
|
|
#if GNULIB_defined_mbstate_t
|
|
|
|
/* Platforms that lack mbsinit() also lack mbrlen(), mbrtowc(), mbsrtowcs()
|
|
and wcrtomb(), wcsrtombs().
|
|
We assume that
|
|
- sizeof (mbstate_t) >= 4,
|
|
- only stateless encodings are supported (such as UTF-8 and EUC-JP, but
|
|
not ISO-2022 variants),
|
|
- for each encoding, the number of bytes for a wide character is <= 4.
|
|
(This maximum is attained for UTF-8, GB18030, EUC-TW.)
|
|
We define the meaning of mbstate_t as follows:
|
|
- In mb -> wc direction, mbstate_t's first byte contains the number of
|
|
buffered bytes (in the range 0..3), followed by up to 3 buffered bytes.
|
|
See mbrtowc.c.
|
|
- In wc -> mb direction, mbstate_t contains no information. In other
|
|
words, it is always in an initial state. */
|
|
|
|
static_assert (sizeof (mbstate_t) >= 4);
|
|
|
|
int
|
|
mbsinit (const mbstate_t *ps)
|
|
{
|
|
const char *pstate = (const char *)ps;
|
|
|
|
return pstate == NULL || pstate[0] == 0;
|
|
}
|
|
|
|
#else
|
|
|
|
int
|
|
mbsinit (const mbstate_t *ps)
|
|
{
|
|
# if defined _WIN32 && !defined __CYGWIN__
|
|
/* Native Windows. */
|
|
/* MSVC defines 'mbstate_t' as an 8-byte struct; the first 4 bytes matter.
|
|
On mingw, 'mbstate_t' is sometimes defined as 'int', sometimes defined as
|
|
an 8-byte struct, of which the first 4 bytes matter. */
|
|
return ps == NULL || *(const unsigned int *)ps == 0;
|
|
# else
|
|
/* Minix, HP-UX 11.00, Solaris 2.6, Interix, ... */
|
|
/* Maybe this definition works, maybe not... */
|
|
return ps == NULL || *(const char *)ps == 0;
|
|
# endif
|
|
}
|
|
|
|
#endif
|