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Export of internal Abseil changes

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034c30a00c64d93b9fcbc9d99a0a33801544d741 by Gennadiy Rozental <rogeeff@google.com>:

Split private handle interfaces accessor into a separate target with private visibility.

PiperOrigin-RevId: 310391488

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6f6ca869309b17900b90849e08488ce7f7b0193a by Derek Mauro <dmauro@google.com>:

Remove __CLANG_SUPPORT_DYN_ANNOTATION__, which is a symbol defined by us
to be true in all builds

PiperOrigin-RevId: 310385325

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ed5c1880c86973c000e826a3006b38e53ab3ed52 by Samuel Benzaquen <sbenza@google.com>:

Add tests to exercise extreme width and precision, and fix the overflows from
it.

PiperOrigin-RevId: 310224957
GitOrigin-RevId: 034c30a00c64d93b9fcbc9d99a0a33801544d741
Change-Id: I6c89a3c89ae92fa617c696044148ce9a79bcdda8
This commit is contained in:
Abseil Team 2020-05-07 10:42:26 -07:00 • committed by vslashg
parent bd317cae3b
commit a35ef8a62c
17 changed files with 214 additions and 99 deletions
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25
absl/strings/internal/str_format/convert_test.cc
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@ -704,6 +704,31 @@ TEST_F(FormatConvertTest, FloatRound) {
"1837869002408041296803276054561138153076171875");
}
// We don't actually store the results. This is just to exercise the rest of the
// machinery.
struct NullSink {
friend void AbslFormatFlush(NullSink *sink, string_view str) {}
};
template <typename... T>
bool FormatWithNullSink(absl::string_view fmt, const T &... a) {
NullSink sink;
FormatArgImpl args[] = {FormatArgImpl(a)...};
return FormatUntyped(&sink, UntypedFormatSpecImpl(fmt), absl::MakeSpan(args));
}
TEST_F(FormatConvertTest, ExtremeWidthPrecision) {
for (const char *fmt : {"f"}) {
for (double d : {1e-100, 1.0, 1e100}) {
constexpr int max = std::numeric_limits<int>::max();
EXPECT_TRUE(FormatWithNullSink(std::string("%.*") + fmt, max, d));
EXPECT_TRUE(FormatWithNullSink(std::string("%1.*") + fmt, max, d));
EXPECT_TRUE(FormatWithNullSink(std::string("%*") + fmt, max, d));
EXPECT_TRUE(FormatWithNullSink(std::string("%*.*") + fmt, max, max, d));
}
}
}
TEST_F(FormatConvertTest, LongDouble) {
#ifdef _MSC_VER
// MSVC has a different rounding policy than us so we can't test our