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-rw-r--r--absl/base/attributes.h25
-rw-r--r--absl/base/config.h5
-rw-r--r--absl/base/internal/direct_mmap.h2
-rw-r--r--absl/base/internal/low_level_alloc.cc4
-rw-r--r--absl/container/internal/raw_hash_set.h2
-rw-r--r--absl/debugging/failure_signal_handler.cc2
-rw-r--r--absl/debugging/symbolize_elf.inc2
-rw-r--r--absl/hash/internal/hash.h10
-rw-r--r--absl/time/format_test.cc9
-rw-r--r--absl/time/internal/cctz/include/cctz/civil_time_detail.h10
10 files changed, 47 insertions, 24 deletions
diff --git a/absl/base/attributes.h b/absl/base/attributes.h
index c44b8828..291ad89e 100644
--- a/absl/base/attributes.h
+++ b/absl/base/attributes.h
@@ -402,17 +402,28 @@
// ABSL_MUST_USE_RESULT
//
-// Tells the compiler to warn about unused return values for functions declared
-// with this macro. The macro must appear as the very first part of a function
-// declaration or definition:
+// Tells the compiler to warn about unused results.
//
-// Example:
+// When annotating a function, it must appear as the first part of the
+// declaration or definition. The compiler will warn if the return value from
+// such a function is unused:
//
// ABSL_MUST_USE_RESULT Sprocket* AllocateSprocket();
+// AllocateSprocket(); // Triggers a warning.
+//
+// When annotating a class, it is equivalent to annotating every function which
+// returns an instance.
+//
+// class ABSL_MUST_USE_RESULT Sprocket {};
+// Sprocket(); // Triggers a warning.
+//
+// Sprocket MakeSprocket();
+// MakeSprocket(); // Triggers a warning.
+//
+// Note that references and pointers are not instances:
//
-// This placement has the broadest compatibility with GCC, Clang, and MSVC, with
-// both defs and decls, and with GCC-style attributes, MSVC declspec, C++11
-// and C++17 attributes.
+// Sprocket* SprocketPointer();
+// SprocketPointer(); // Does *not* trigger a warning.
//
// ABSL_MUST_USE_RESULT allows using cast-to-void to suppress the unused result
// warning. For that, warn_unused_result is used only for clang but not for gcc.
diff --git a/absl/base/config.h b/absl/base/config.h
index e3edb2bf..ca089f6d 100644
--- a/absl/base/config.h
+++ b/absl/base/config.h
@@ -274,7 +274,8 @@
#error ABSL_HAVE_MMAP cannot be directly set
#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
defined(__ros__) || defined(__native_client__) || defined(__asmjs__) || \
- defined(__wasm__) || defined(__Fuchsia__) || defined(__sun)
+ defined(__wasm__) || defined(__Fuchsia__) || defined(__sun) || \
+ defined(__ASYLO__)
#define ABSL_HAVE_MMAP 1
#endif
@@ -328,6 +329,8 @@
#define ABSL_HAVE_ALARM 1
#elif defined(_MSC_VER)
// feature tests for Microsoft's library
+#elif defined(__EMSCRIPTEN__)
+// emscripten doesn't support signals
#elif defined(__native_client__)
#else
// other standard libraries
diff --git a/absl/base/internal/direct_mmap.h b/absl/base/internal/direct_mmap.h
index 0426e118..3e5368db 100644
--- a/absl/base/internal/direct_mmap.h
+++ b/absl/base/internal/direct_mmap.h
@@ -75,7 +75,7 @@ inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
// On these architectures, implement mmap with mmap2.
static int pagesize = 0;
if (pagesize == 0) {
- pagesize = getpagesize();
+ pagesize = sysconf(_SC_PAGESIZE);
}
if (offset < 0 || offset % pagesize != 0) {
errno = EINVAL;
diff --git a/absl/base/internal/low_level_alloc.cc b/absl/base/internal/low_level_alloc.cc
index 6e636a02..015edf8d 100644
--- a/absl/base/internal/low_level_alloc.cc
+++ b/absl/base/internal/low_level_alloc.cc
@@ -208,7 +208,7 @@ struct LowLevelAlloc::Arena {
int32_t allocation_count GUARDED_BY(mu);
// flags passed to NewArena
const uint32_t flags;
- // Result of getpagesize()
+ // Result of sysconf(_SC_PAGESIZE)
const size_t pagesize;
// Lowest power of two >= max(16, sizeof(AllocList))
const size_t roundup;
@@ -325,7 +325,7 @@ size_t GetPageSize() {
GetSystemInfo(&system_info);
return std::max(system_info.dwPageSize, system_info.dwAllocationGranularity);
#else
- return getpagesize();
+ return sysconf(_SC_PAGESIZE);
#endif
}
diff --git a/absl/container/internal/raw_hash_set.h b/absl/container/internal/raw_hash_set.h
index 10fa3d85..575f1b00 100644
--- a/absl/container/internal/raw_hash_set.h
+++ b/absl/container/internal/raw_hash_set.h
@@ -403,7 +403,7 @@ struct GroupSse2Impl {
}
void ConvertSpecialToEmptyAndFullToDeleted(ctrl_t* dst) const {
- auto msbs = _mm_set1_epi8(0x80);
+ auto msbs = _mm_set1_epi8(static_cast<char>(-128));
auto x126 = _mm_set1_epi8(126);
#if SWISSTABLE_HAVE_SSSE3
auto res = _mm_or_si128(_mm_shuffle_epi8(x126, ctrl), msbs);
diff --git a/absl/debugging/failure_signal_handler.cc b/absl/debugging/failure_signal_handler.cc
index d4b957bc..6cecd93f 100644
--- a/absl/debugging/failure_signal_handler.cc
+++ b/absl/debugging/failure_signal_handler.cc
@@ -119,7 +119,7 @@ const char* FailureSignalToString(int signo) {
#ifndef _WIN32
static bool SetupAlternateStackOnce() {
- const size_t page_mask = getpagesize() - 1;
+ const size_t page_mask = sysconf(_SC_PAGESIZE) - 1;
size_t stack_size = (std::max(SIGSTKSZ, 65536) + page_mask) & ~page_mask;
#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
defined(THREAD_SANITIZER)
diff --git a/absl/debugging/symbolize_elf.inc b/absl/debugging/symbolize_elf.inc
index e21439ce..b31362e6 100644
--- a/absl/debugging/symbolize_elf.inc
+++ b/absl/debugging/symbolize_elf.inc
@@ -333,7 +333,7 @@ static std::atomic<Symbolizer *> g_cached_symbolizer;
} // namespace
static int SymbolizerSize() {
- int pagesize = getpagesize();
+ int pagesize = sysconf(_SC_PAGESIZE);
return ((sizeof(Symbolizer) - 1) / pagesize + 1) * pagesize;
}
diff --git a/absl/hash/internal/hash.h b/absl/hash/internal/hash.h
index b66cc1b5..6c00f354 100644
--- a/absl/hash/internal/hash.h
+++ b/absl/hash/internal/hash.h
@@ -303,13 +303,13 @@ H hash_tuple(H hash_state, const Tuple& t, absl::index_sequence<Is...>) {
// AbslHashValue for hashing tuples
template <typename H, typename... Ts>
-#if _MSC_VER
+#if defined(_MSC_VER)
// This SFINAE gets MSVC confused under some conditions. Let's just disable it
// for now.
H
-#else
+#else // _MSC_VER
typename std::enable_if<absl::conjunction<is_hashable<Ts>...>::value, H>::type
-#endif
+#endif // _MSC_VER
AbslHashValue(H hash_state, const std::tuple<Ts...>& t) {
return hash_internal::hash_tuple(std::move(hash_state), t,
absl::make_index_sequence<sizeof...(Ts)>());
@@ -545,7 +545,7 @@ hash_range_or_bytes(H hash_state, const T* data, size_t size) {
// In MSVC we can't probe std::hash or stdext::hash because it triggers a
// static_assert instead of failing substitution.
#if defined(_MSC_VER)
-#undef ABSL_HASH_INTERNAL_CAN_POISON_
+#define ABSL_HASH_INTERNAL_CAN_POISON_ 0
#else // _MSC_VER
#define ABSL_HASH_INTERNAL_CAN_POISON_ 1
#endif // _MSC_VER
@@ -553,6 +553,8 @@ hash_range_or_bytes(H hash_state, const T* data, size_t size) {
#if defined(ABSL_INTERNAL_LEGACY_HASH_NAMESPACE) && \
ABSL_HASH_INTERNAL_CAN_POISON_
#define ABSL_HASH_INTERNAL_SUPPORT_LEGACY_HASH_ 1
+#else
+#define ABSL_HASH_INTERNAL_SUPPORT_LEGACY_HASH_ 0
#endif
enum class InvokeHashTag {
diff --git a/absl/time/format_test.cc b/absl/time/format_test.cc
index 40f4c246..ac8d5ea3 100644
--- a/absl/time/format_test.cc
+++ b/absl/time/format_test.cc
@@ -394,7 +394,12 @@ TEST(FormatParse, RoundTrip) {
// work. On Windows, `absl::ParseTime()` falls back to std::get_time() which
// appears to fail on "%c" (or at least on the "%c" text produced by
// `strftime()`). This makes it fail the round-trip test.
-#ifndef _MSC_VER
+ //
+ // Under the emscripten compiler `absl::ParseTime() falls back to
+ // `strptime()`, but that ends up using a different definition for "%c"
+ // compared to `strftime()`, also causing the round-trip test to fail
+ // (see https://github.com/kripken/emscripten/pull/7491).
+#if !defined(_MSC_VER) && !defined(__EMSCRIPTEN__)
// Even though we don't know what %c will produce, it should roundtrip,
// but only in the 0-offset timezone.
{
@@ -403,7 +408,7 @@ TEST(FormatParse, RoundTrip) {
EXPECT_TRUE(absl::ParseTime("%c", s, &out, &err)) << s << ": " << err;
EXPECT_EQ(in, out);
}
-#endif // _MSC_VER
+#endif // !_MSC_VER && !__EMSCRIPTEN__
}
TEST(FormatParse, RoundTripDistantFuture) {
diff --git a/absl/time/internal/cctz/include/cctz/civil_time_detail.h b/absl/time/internal/cctz/include/cctz/civil_time_detail.h
index d7f72717..855958ec 100644
--- a/absl/time/internal/cctz/include/cctz/civil_time_detail.h
+++ b/absl/time/internal/cctz/include/cctz/civil_time_detail.h
@@ -506,9 +506,11 @@ enum class weekday {
};
CONSTEXPR_F weekday get_weekday(const civil_day& cd) noexcept {
- CONSTEXPR_D weekday k_weekday_by_sun_off[7] = {
- weekday::sunday, weekday::monday, weekday::tuesday,
- weekday::wednesday, weekday::thursday, weekday::friday,
+ CONSTEXPR_D weekday k_weekday_by_mon_off[13] = {
+ weekday::monday, weekday::tuesday, weekday::wednesday,
+ weekday::thursday, weekday::friday, weekday::saturday,
+ weekday::sunday, weekday::monday, weekday::tuesday,
+ weekday::wednesday, weekday::thursday, weekday::friday,
weekday::saturday,
};
CONSTEXPR_D int k_weekday_offsets[1 + 12] = {
@@ -517,7 +519,7 @@ CONSTEXPR_F weekday get_weekday(const civil_day& cd) noexcept {
year_t wd = 2400 + (cd.year() % 400) - (cd.month() < 3);
wd += wd / 4 - wd / 100 + wd / 400;
wd += k_weekday_offsets[cd.month()] + cd.day();
- return k_weekday_by_sun_off[(wd % 7 + 7) % 7];
+ return k_weekday_by_mon_off[wd % 7 + 6];
}
////////////////////////////////////////////////////////////////////////
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 15:05:25 +0000