From a900e641fa1fd765799f12a7f699f768ebfccfe8 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Fri, 22 Jan 2021 11:45:38 -0800 Subject: Update from Gnulib by running admin/merge-gnulib --- lib/malloc/dynarray_resize.c | 64 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 lib/malloc/dynarray_resize.c (limited to 'lib/malloc/dynarray_resize.c') diff --git a/lib/malloc/dynarray_resize.c b/lib/malloc/dynarray_resize.c new file mode 100644 index 00000000000..92bbddd4461 --- /dev/null +++ b/lib/malloc/dynarray_resize.c @@ -0,0 +1,64 @@ +/* Increase the size of a dynamic array. + Copyright (C) 2017-2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 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 + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include +#include + +bool +__libc_dynarray_resize (struct dynarray_header *list, size_t size, + void *scratch, size_t element_size) +{ + /* The existing allocation provides sufficient room. */ + if (size <= list->allocated) + { + list->used = size; + return true; + } + + /* Otherwise, use size as the new allocation size. The caller is + expected to provide the final size of the array, so there is no + over-allocation here. */ + + size_t new_size_bytes; + if (INT_MULTIPLY_WRAPV (size, element_size, &new_size_bytes)) + { + /* Overflow. */ + __set_errno (ENOMEM); + return false; + } + void *new_array; + if (list->array == scratch) + { + /* The previous array was not heap-allocated. */ + new_array = malloc (new_size_bytes); + if (new_array != NULL && list->array != NULL) + memcpy (new_array, list->array, list->used * element_size); + } + else + new_array = realloc (list->array, new_size_bytes); + if (new_array == NULL) + return false; + list->array = new_array; + list->allocated = size; + list->used = size; + return true; +} +libc_hidden_def (__libc_dynarray_resize) -- cgit v1.2.1 From 68a256c89270ef9e97bca6097967a9ed2b050f4a Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Mon, 4 Oct 2021 12:11:39 -0700 Subject: Update from Gnulib Make the following changes by hand, and run 'admin/merge-gnulib'. * .gitignore: Add lib/malloc/*.gl.h. * admin/merge-gnulib: Copy lib/af_alg.h and lib/save-cwd.h directly from Gnulib, without worrying about Gnulib modules, as these files are special cases. (AVOIDED_MODULES): Remove malloc-posix. * lib/malloc.c, lib/realloc.c, m4/malloc.m4, m4/realloc.m4: * m4/year2038.m4: New files, copied from Gnulib. * lib/malloca.c, lib/malloca.h: * m4/close-stream.m4, m4/glibc21.m4, m4/malloca.m4: Remove. These are either no longer present in Gnulib, or are no longer needed by modules that Emacs uses. * oldXMenu/AddPane.c, oldXmenu/Addsel.c: Include XmenuInt.h first; needed for new Gnulib. * src/xmenu.c: Call emacs_abort, not abort. --- lib/malloc/dynarray_resize.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'lib/malloc/dynarray_resize.c') diff --git a/lib/malloc/dynarray_resize.c b/lib/malloc/dynarray_resize.c index 92bbddd4461..5a57166a849 100644 --- a/lib/malloc/dynarray_resize.c +++ b/lib/malloc/dynarray_resize.c @@ -3,19 +3,23 @@ This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public + modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. + 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 - General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public + You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ +#ifndef _LIBC +# include +#endif + #include #include #include -- cgit v1.2.1 From 19dcb237b5b02b36580294ab309124f346a66024 Mon Sep 17 00:00:00 2001 From: Eli Zaretskii Date: Sat, 1 Jan 2022 02:45:51 -0500 Subject: ; Add 2022 to copyright years. --- lib/malloc/dynarray_resize.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib/malloc/dynarray_resize.c') diff --git a/lib/malloc/dynarray_resize.c b/lib/malloc/dynarray_resize.c index 5a57166a849..8d1922e5c7f 100644 --- a/lib/malloc/dynarray_resize.c +++ b/lib/malloc/dynarray_resize.c @@ -1,5 +1,5 @@ /* Increase the size of a dynamic array. - Copyright (C) 2017-2021 Free Software Foundation, Inc. + Copyright (C) 2017-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or -- cgit v1.2.1