Prepare for radical source tree reorganization.zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 82 insertions, 0 deletions

diff --git a/REORG.TODO/wcsmbs/wctob.c b/REORG.TODO/wcsmbs/wctob.c
new file mode 100644
index 0000000000..6a4fb86ac4
--- /dev/null
+++ b/REORG.TODO/wcsmbs/wctob.c
@@ -0,0 +1,82 @@
+/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
+
+   The GNU C Library 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.
+
+   The GNU C Library 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 the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <dlfcn.h>
+#include <gconv.h>
+#include <stdio.h>
+#include <string.h>
+#include <wchar.h>
+#include <wcsmbsload.h>
+
+#include <sysdep.h>
+
+
+int
+wctob (wint_t c)
+{
+  unsigned char buf[MB_LEN_MAX];
+  struct __gconv_step_data data;
+  wchar_t inbuf[1];
+  wchar_t *inptr = inbuf;
+  size_t dummy;
+  int status;
+  const struct gconv_fcts *fcts;
+
+  if (c == WEOF)
+    return EOF;
+
+  /* We know that only ASCII compatible encodings are used for the
+     locale and that the wide character encoding is ISO 10646.  */
+  if (c >= L'\0' && c <= L'\x7f')
+    return (int) c;
+
+  /* Tell where we want the result.  */
+  data.__outbuf = buf;
+  data.__outbufend = buf + MB_LEN_MAX;
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__flags = __GCONV_IS_LAST;
+  data.__statep = &data.__state;
+
+  /* Make sure we start in the initial state.  */
+  memset (&data.__state, '\0', sizeof (mbstate_t));
+
+  /* Get the conversion functions.  */
+  fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
+
+  /* Create the input string.  */
+  inbuf[0] = c;
+
+  const unsigned char *argptr = (const unsigned char *) inptr;
+  __gconv_fct fct = fcts->tomb->__fct;
+#ifdef PTR_DEMANGLE
+  if (fcts->tomb->__shlib_handle != NULL)
+    PTR_DEMANGLE (fct);
+#endif
+  status = DL_CALL_FCT (fct,
+			(fcts->tomb, &data, &argptr,
+			 argptr + sizeof (inbuf[0]), NULL, &dummy, 0, 1));
+
+  /* The conversion failed or the output is too long.  */
+  if ((status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
+       && status != __GCONV_EMPTY_INPUT)
+      || data.__outbuf != (unsigned char *) (buf + 1))
+    return EOF;
+
+  return buf[0];
+}