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manually merge some changes from abseil-cpp

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greg
2022-03-06 16:54:03 -05:00
parent cfacd26023
commit 73be7c2ab2
5 changed files with 174 additions and 63 deletions
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parallel_hashmap/phmap_config.h
Vendored
+23 -5
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@@ -128,15 +128,33 @@
#define PHMAP_BRANCHLESS 1
#ifdef __has_feature
#define PHMAP_HAVE_FEATURE(f) __has_feature(f)
#else
#define PHMAP_HAVE_FEATURE(f) 0
#endif
// Portable check for GCC minimum version:
// https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
#if defined(__GNUC__) && defined(__GNUC_MINOR__)
#define PHMAP_INTERNAL_HAVE_MIN_GNUC_VERSION(x, y) (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y))
#else
#define PHMAP_INTERNAL_HAVE_MIN_GNUC_VERSION(x, y) 0
#endif
#if defined(__clang__) && defined(__clang_major__) && defined(__clang_minor__)
#define PHMAP_INTERNAL_HAVE_MIN_CLANG_VERSION(x, y) (__clang_major__ > (x) || __clang_major__ == (x) && __clang_minor__ >= (y))
#else
#define PHMAP_INTERNAL_HAVE_MIN_CLANG_VERSION(x, y) 0
#endif
// ----------------------------------------------------------------
// Checks whether `std::is_trivially_destructible<T>` is supported.
// ----------------------------------------------------------------
#ifdef PHMAP_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
#error PHMAP_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE cannot be directly set
#elif defined(_LIBCPP_VERSION) || \
(!defined(__clang__) && defined(__GNUC__) && defined(__GLIBCXX__) && \
(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) || \
defined(_MSC_VER)
#elif defined(_LIBCPP_VERSION) || defined(_MSC_VER) || \
(!defined(__clang__) && defined(__GNUC__) && defined(__GLIBCXX__) && PHMAP_INTERNAL_HAVE_MIN_GNUC_VERSION(4, 8))
#define PHMAP_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE 1
#endif
@@ -150,7 +168,7 @@
#error PHMAP_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE cannot directly set
#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) || \
(!defined(__clang__) && defined(__GNUC__) && \
(__GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)) && \
PHMAP_INTERNAL_HAVE_MIN_GNUC_VERSION(5, 1) && \
(defined(_LIBCPP_VERSION) || defined(__GLIBCXX__))) || \
(defined(_MSC_VER) && !defined(__NVCC__))
#define PHMAP_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1