Revert "[libc++] Move abs and div into stdlib.h to fix header cycle."
This reverts commit 82b47b2978405f802a33b00d046e6f18ef6a47be.
This broke Clang and LLDB module builds without -fmodules-local-submodule-visbility.
I'll revert this for now until we have a fix and reland once Clang
can properly handle this code.
See also the discussion in https://reviews.llvm.org/rG82b47b2978405f802a33b00d046e6f18ef6a47be
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 23368bee15356c830d9c315fe2c4fe0c22f29906
diff --git a/include/math.h b/include/math.h
index 1603d57..c9b4733 100644
--- a/include/math.h
+++ b/include/math.h
@@ -297,6 +297,9 @@
#pragma GCC system_header
#endif
+#define _LIBCPP_STDLIB_INCLUDE_NEXT
+#include <stdlib.h>
+
#include_next <math.h>
#ifdef __cplusplus
@@ -305,7 +308,6 @@
// back to C++ linkage before including these C++ headers.
extern "C++" {
-#include <stdlib.h>
#include <type_traits>
#include <limits>
@@ -758,12 +760,61 @@
#endif // isunordered
// abs
-//
-// handled in stdlib.h
+
+#undef abs
+#undef labs
+#ifndef _LIBCPP_HAS_NO_LONG_LONG
+#undef llabs
+#endif
+
+// MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined
+#if !defined(_LIBCPP_MSVCRT) && !defined(__sun__) && !defined(_AIX)
+inline _LIBCPP_INLINE_VISIBILITY long abs(long __x) _NOEXCEPT {
+ return ::labs(__x);
+}
+#ifndef _LIBCPP_HAS_NO_LONG_LONG
+inline _LIBCPP_INLINE_VISIBILITY long long abs(long long __x) _NOEXCEPT {
+ return ::llabs(__x);
+}
+#endif // _LIBCPP_HAS_NO_LONG_LONG
+#endif // !defined(_LIBCPP_MSVCRT) && !defined(__sun__) && !defined(_AIX)
+
+
+#if !(defined(_AIX) || defined(__sun__))
+inline _LIBCPP_INLINE_VISIBILITY float abs(float __lcpp_x) _NOEXCEPT {
+ return ::fabsf(__lcpp_x);
+}
+
+inline _LIBCPP_INLINE_VISIBILITY double abs(double __lcpp_x) _NOEXCEPT {
+ return ::fabs(__lcpp_x);
+}
+
+inline _LIBCPP_INLINE_VISIBILITY long double
+abs(long double __lcpp_x) _NOEXCEPT {
+ return ::fabsl(__lcpp_x);
+}
+#endif // !(defined(_AIX) || defined(__sun__))
// div
-//
-// handled in stdlib.h
+
+#undef div
+#undef ldiv
+#ifndef _LIBCPP_HAS_NO_LONG_LONG
+#undef lldiv
+#endif
+
+// MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined
+#if !defined(_LIBCPP_MSVCRT) && !defined(__sun__) && !defined(_AIX)
+inline _LIBCPP_INLINE_VISIBILITY ldiv_t div(long __x, long __y) _NOEXCEPT {
+ return ::ldiv(__x, __y);
+}
+#ifndef _LIBCPP_HAS_NO_LONG_LONG
+inline _LIBCPP_INLINE_VISIBILITY lldiv_t div(long long __x,
+ long long __y) _NOEXCEPT {
+ return ::lldiv(__x, __y);
+}
+#endif // _LIBCPP_HAS_NO_LONG_LONG
+#endif // _LIBCPP_MSVCRT / __sun__ / _AIX
// acos