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Changes imported from Abseil "staging" branch:

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- 432508bf64998983b3c194d5f164872ce3c2e573 Put visibility tags into absl external build files by Jon Cohen <cohenjon@google.com>
  - 25d59d11e7b833fe632cddb5bf4d76075ae6282b Use ABSL_PREDICT_TRUE instead of *FALSE for the range che... by Jon Cohen <cohenjon@google.com>
  - 8d8a5890a55ddd19aac849748441eeb57c684f10 Better detection for MSVC support on std::optional. by Xiaoyi Zhang <zhangxy@google.com>
  - c1b31e4a97939885c3bbc23ecb093e9619e73ad1 Internal cleanup by Gennadiy Rozental <rogeeff@google.com>
  - 4f56ad20c4eeccc6f5fb21ec6c7191233d34a090 Internal change. by Matt Calabrese <calabrese@google.com>
  - d2a02b52c75c295708170f4d17b7ff442c8d6a97 Fixed a minor typo in the SimpleAtob() function comment. by Abseil Team <absl-team@google.com>
  - 5adbff5c23a45278d06de2ef3a29ea51b0d1269e Internal cleanup by Gennadiy Rozental <rogeeff@google.com>

GitOrigin-RevId: 432508bf64998983b3c194d5f164872ce3c2e573
Change-Id: I32ddd151d3350b96a22e8f1830f19b59374953ad
This commit is contained in:
Abseil Team 2017-10-13 10:21:40 -07:00 • committed by jueminyang
parent 1a9ba5e2e5
commit 6de53819a7
13 changed files with 75 additions and 16 deletions
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15
absl/base/config.h
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@ -372,4 +372,19 @@
#endif
#endif
// For MSVC, `__has_include` is supported in VS 2017 15.3, which is later than
// the support for <optional>, <any>, <string_view>. So we use _MSC_VER to check
// whether we have VS 2017 RTM (when <optional>, <any>, <string_view> is
// implemented) or higher.
// Also, `__cplusplus` is 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`,
// `std::string_view`.
#if defined(_MSC_VER) && _MSC_VER >= 1910 && \
((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || __cplusplus > 201402)
// #define ABSL_HAVE_STD_ANY 1
#define ABSL_HAVE_STD_OPTIONAL 1
// #define ABSL_HAVE_STD_STRING_VIEW 1
#endif
#endif // ABSL_BASE_CONFIG_H_