Export of internal Abseil changes

--
e86453648e05d9bf30ff97a68fba8ce5134ee1c9 by Abseil Team <absl-team@google.com>:

Fix compilation in C with clang on windows with -Wundef flag

PiperOrigin-RevId: 350545275
GitOrigin-RevId: e86453648e05d9bf30ff97a68fba8ce5134ee1c9
Change-Id: I029538298ff894d5798b9c6f488af7aa1a3ec2a7
pull/772/merge
Abseil Team 4 years ago committed by Derek Mauro
parent a6c17c7e84
commit 92ba535999
  1. 18
      absl/base/config.h

@ -490,7 +490,7 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
#endif
#ifdef __has_include
#if __has_include(<any>) && __cplusplus >= 201703L && \
#if __has_include(<any>) && defined(__cplusplus) && __cplusplus >= 201703L && \
!ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
#define ABSL_HAVE_STD_ANY 1
#endif
@ -504,8 +504,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
#endif
#ifdef __has_include
#if __has_include(<optional>) && __cplusplus >= 201703L && \
!ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
#if __has_include(<optional>) && defined(__cplusplus) && \
__cplusplus >= 201703L && !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
#define ABSL_HAVE_STD_OPTIONAL 1
#endif
#endif
@ -518,8 +518,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
#endif
#ifdef __has_include
#if __has_include(<variant>) && __cplusplus >= 201703L && \
!ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
#if __has_include(<variant>) && defined(__cplusplus) && \
__cplusplus >= 201703L && !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
#define ABSL_HAVE_STD_VARIANT 1
#endif
#endif
@ -532,7 +532,8 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
#endif
#ifdef __has_include
#if __has_include(<string_view>) && __cplusplus >= 201703L
#if __has_include(<string_view>) && defined(__cplusplus) && \
__cplusplus >= 201703L
#define ABSL_HAVE_STD_STRING_VIEW 1
#endif
#endif
@ -544,8 +545,9 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
// not correctly set by MSVC, so we use `_MSVC_LANG` to check the language
// version.
// TODO(zhangxy): fix tests before enabling aliasing for `std::any`.
#if defined(_MSC_VER) && _MSC_VER >= 1910 && \
((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || __cplusplus > 201402)
#if defined(_MSC_VER) && _MSC_VER >= 1910 && \
((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || \
(defined(__cplusplus) && __cplusplus > 201402))
// #define ABSL_HAVE_STD_ANY 1
#define ABSL_HAVE_STD_OPTIONAL 1
#define ABSL_HAVE_STD_VARIANT 1

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