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-rw-r--r--include/cstdlib8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/cstdlib b/include/cstdlib
index 152b891de78e4..55e15c82192ef 100644
--- a/include/cstdlib
+++ b/include/cstdlib
@@ -131,19 +131,27 @@ using ::getenv;
using ::system;
using ::bsearch;
using ::qsort;
+#undef abs
using ::abs;
+#undef labs
using ::labs;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
+#undef llabs
using ::llabs;
#endif // _LIBCPP_HAS_NO_LONG_LONG
+#undef div
using ::div;
+#undef ldiv
using ::ldiv;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
+#undef lldiv
using ::lldiv;
#endif // _LIBCPP_HAS_NO_LONG_LONG
+#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
using ::mblen;
using ::mbtowc;
using ::wctomb;
+#endif
using ::mbstowcs;
using ::wcstombs;
#ifdef _LIBCPP_HAS_QUICK_EXIT