From 5bf048b8425cc0a342e4647932de19e25ffd6ad7 Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Mon, 26 Oct 2020 09:50:44 -0700 Subject: Export of internal Abseil changes -- 730bb88bee556aa11fa19aa33e1434cb6fa78985 by Evan Brown : Support missing allocator-related constructors in b-tree. See [reference](https://en.cppreference.com/w/cpp/container/set/set). Also use allocator_traits::select_on_container_copy_construction() to get allocator for copy construction. PiperOrigin-RevId: 339058322 -- b6cc121689ae3e452d1db2d66122cb198d25142b by Derek Mauro : Fix more sign-compare warnings PiperOrigin-RevId: 339057920 -- 0e2c62da1dcaf6529abab952bdcc96c6de2d9506 by Abseil Team : Add missing include PiperOrigin-RevId: 339054753 -- d5a9ec2d1e40fe6359e720942e4955009ee415ec by Derek Mauro : Stop disabling sign-compare warnings for non-test targets. Our users complain about these. This does not catch issues in header-only libraries (like btree.h) but we may work on those in the future PiperOrigin-RevId: 338967089 -- 0c062c542a4c61ea0f65d25811827c0858e3adde by Abseil Team : Improve cache-locality for ThreadIdentity and PerThreadSynch. This is a change based on an observation in RPC benchmarks that shows significant cycles being spent in waking up a thread, 99.8% of which was on cache misses. Investigating this a bit more, it turns out to be due to sharing the cache line with the waiter state. To fix this issue, the following changes are introduced: - Reorder fields in PerThreadSync so that it fits in a single cache line The size of this structure was 80 bytes before this change. Note: Manually inspected all booleans to make sure they are not modified by multiple threads concurrently. PiperOrigin-RevId: 338852058 -- a90d6f2b2346385017e32dd8ae1b5ca691a5863f by Derek Mauro : Delete GCC 4.9 test script. It is no longer supported PiperOrigin-RevId: 338779452 -- 7274008d4757e88869110be9db39d03d911ae2b5 by Abseil Team : Fix the usage example in which SetFlag should take a pointer. PiperOrigin-RevId: 338744529 GitOrigin-RevId: 730bb88bee556aa11fa19aa33e1434cb6fa78985 Change-Id: Iff99594c4022e60e482a392d334b376c7ae8883e --- absl/strings/internal/charconv_parse.cc | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'absl/strings/internal/charconv_parse.cc') diff --git a/absl/strings/internal/charconv_parse.cc b/absl/strings/internal/charconv_parse.cc index a368845f..8b11868c 100644 --- a/absl/strings/internal/charconv_parse.cc +++ b/absl/strings/internal/charconv_parse.cc @@ -246,8 +246,8 @@ constexpr int DigitMagnitude<16>() { // ConsumeDigits does not protect against overflow on *out; max_digits must // be chosen with respect to type T to avoid the possibility of overflow. template -std::size_t ConsumeDigits(const char* begin, const char* end, int max_digits, - T* out, bool* dropped_nonzero_digit) { +int ConsumeDigits(const char* begin, const char* end, int max_digits, T* out, + bool* dropped_nonzero_digit) { if (base == 10) { assert(max_digits <= std::numeric_limits::digits10); } else if (base == 16) { @@ -282,7 +282,7 @@ std::size_t ConsumeDigits(const char* begin, const char* end, int max_digits, *dropped_nonzero_digit = true; } *out = accumulator; - return begin - original_begin; + return static_cast(begin - original_begin); } // Returns true if `v` is one of the chars allowed inside parentheses following @@ -372,7 +372,7 @@ strings_internal::ParsedFloat ParseFloat(const char* begin, const char* end, int exponent_adjustment = 0; bool mantissa_is_inexact = false; - std::size_t pre_decimal_digits = ConsumeDigits( + int pre_decimal_digits = ConsumeDigits( begin, end, MantissaDigitsMax(), &mantissa, &mantissa_is_inexact); begin += pre_decimal_digits; int digits_left; @@ -398,14 +398,14 @@ strings_internal::ParsedFloat ParseFloat(const char* begin, const char* end, while (begin < end && *begin == '0') { ++begin; } - std::size_t zeros_skipped = begin - begin_zeros; + int zeros_skipped = static_cast(begin - begin_zeros); if (zeros_skipped >= DigitLimit()) { // refuse to parse pathological inputs return result; } exponent_adjustment -= static_cast(zeros_skipped); } - int64_t post_decimal_digits = ConsumeDigits( + int post_decimal_digits = ConsumeDigits( begin, end, digits_left, &mantissa, &mantissa_is_inexact); begin += post_decimal_digits; -- cgit v1.2.3