diff options
Diffstat (limited to 'lib/string.in.h')
| -rw-r--r-- | lib/string.in.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/string.in.h b/lib/string.in.h index 9a6b311d007..aaff5638d0f 100644 --- a/lib/string.in.h +++ b/lib/string.in.h @@ -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@ |