diff options
Diffstat (limited to 'libgnu/string.in.h')
| -rw-r--r-- | libgnu/string.in.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/libgnu/string.in.h b/libgnu/string.in.h index 9a6b311d..29f4ba6b 100644 --- a/libgnu/string.in.h +++ b/libgnu/string.in.h @@ -1,6 +1,6 @@ /* A GNU-like <string.h>. - Copyright (C) 1995-1996, 2001-2017 Free Software Foundation, Inc. + Copyright (C) 1995-1996, 2001-2018 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -13,7 +13,7 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. */ + along with this program; if not, see <https://www.gnu.org/licenses/>. */ #if __GNUC__ >= 3 @PRAGMA_SYSTEM_HEADER@ @@ -74,6 +74,23 @@ /* The definition of _GL_WARN_ON_USE is copied here. */ +/* Clear a block of memory. The compiler will not delete a call to + this function, even if the block is dead after the call. */ +#if @GNULIB_EXPLICIT_BZERO@ +# if ! @HAVE_EXPLICIT_BZERO@ +_GL_FUNCDECL_SYS (explicit_bzero, void, + (void *__dest, size_t __n) _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (explicit_bzero, void, (void *__dest, size_t __n)); +_GL_CXXALIASWARN (explicit_bzero); +#elif defined GNULIB_POSIXCHECK +# undef explicit_bzero +# if HAVE_RAW_DECL_EXPLICIT_BZERO +_GL_WARN_ON_USE (explicit_bzero, "explicit_bzero is unportable - " + "use gnulib module explicit_bzero for portability"); +# endif +#endif + /* Find the index of the least-significant set bit. */ #if @GNULIB_FFSL@ # if !@HAVE_FFSL@ |