diff options
Diffstat (limited to 'libstdc++-v3/include/bits/valarray_array.h')
| -rw-r--r-- | libstdc++-v3/include/bits/valarray_array.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libstdc++-v3/include/bits/valarray_array.h b/libstdc++-v3/include/bits/valarray_array.h index f169edd9728..bb32d7ac188 100644 --- a/libstdc++-v3/include/bits/valarray_array.h +++ b/libstdc++-v3/include/bits/valarray_array.h @@ -152,7 +152,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { inline static void _S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o) - { __builtin_memcpy(__o, __b, (__e - __b) * sizeof(_Tp)); } + { + if (__b) + __builtin_memcpy(__o, __b, (__e - __b) * sizeof(_Tp)); + } }; template<typename _Tp> @@ -258,7 +261,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { inline static void _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b) - { __builtin_memcpy(__b, __a, __n * sizeof (_Tp)); } + { + if (__n != 0) + __builtin_memcpy(__b, __a, __n * sizeof (_Tp)); + } }; // Copy a plain array __a[<__n>] into a play array __b[<>] |