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Export of internal Abseil changes

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--
990253454819ce26ff1dda9ab4bbc145b61d01e4 by Xiaoyi Zhang <zhangxy@google.com>:

Import github PR https://github.com/abseil/abseil-cpp/pull/645

PiperOrigin-RevId: 303119797

--
5ac845cb7929b7d1eaf59a309afd811db5001175 by Abseil Team <absl-team@google.com>:

Fix internal exception spec compatibility error

PiperOrigin-RevId: 303104081

--
3290595dd866eecab3c7044e2e3ca0adb74f1bf5 by Gennadiy Rozental <rogeeff@google.com>:

Use FlagValue<T> to represent the value of a flag. Place it directly after
FlagImpl and use a computed offset refer to it.

The offset is computed based on the assumption that the `value_` data member
is placed directly after the impl_ data member in Flag<T>.

This change will allow us to migrate to `T`-specific storage in the generic case.

This change decreases the overhead for int flags by 32 bytes.

PiperOrigin-RevId: 303038099

--
f2b37722cd7a6d3a60ef9713f0d2bbff56f3ddbf by Derek Mauro <dmauro@google.com>:

Minor correctness fix for an ABSL_HAVE_BUILTIN conditional

PiperOrigin-RevId: 302980666

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39c079a6141ae1c5728af8bf33a39c8aff9deb9f by Abseil Team <absl-team@google.com>:

Use ABSL_HARDENING_ASSERT in b-tree and SwissTable iterators.

PiperOrigin-RevId: 302970075

--
9668a044e080c789df32bcaa1ffb5100831cd9fa by Benjamin Barenblat <bbaren@google.com>:

Correct `add_subdirectory` line in CMake googletest support

Commit bcefbdcdf6 added support for building with CMake against a local googletest checkout, but I missed a line when constructing the diff. Change the `add_subdirectory` line to reference the correct directories.

PiperOrigin-RevId: 302947488

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0a3c10fabf80a43ca69ab8b1570030e55f2be741 by Andy Soffer <asoffer@google.com>:

Remove unused distribution format traits.

PiperOrigin-RevId: 302896176

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0478f2f6270e5ed64c0e28ec09556ca90b2d46a9 by Samuel Benzaquen <sbenza@google.com>:

Fix for CWG:2310.

PiperOrigin-RevId: 302734089

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3cb978dda5cae5905affdc0914dcc2d27671ed11 by Samuel Benzaquen <sbenza@google.com>:

Fix the Allocate/Deallocate functions to use the same underlying allocator type.

PiperOrigin-RevId: 302721804

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ae38d3984fb68b4e3ddc165fa8d5c24d5936be52 by Matthew Brown <matthewbr@google.com>:

Internal Change

PiperOrigin-RevId: 302717314

--
7357cf7abd03cc60b6e82b5f28a8e34935c3b4dc by Andy Getzendanner <durandal@google.com>:

Fix typo: s/ABSL_HARDENED_ASSERT/ABSL_HARDENING_ASSERT/

PiperOrigin-RevId: 302532164
GitOrigin-RevId: 990253454819ce26ff1dda9ab4bbc145b61d01e4
Change-Id: Ie595a221c16e1e7e1255ad42e029b646c5f3e11d
This commit is contained in:
Abseil Team 2020-03-26 08:48:01 -07:00 • committed by Xiaoyi Zhang
parent 132d791b40
commit 79e0dc1151
29 changed files with 387 additions and 607 deletions
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41
absl/strings/internal/str_format/float_conversion.cc
View file

@ -33,7 +33,7 @@ bool FallbackToSnprintf(const Float v, const ConversionSpec &conv,
if (std::is_same<long double, Float>()) {
*fp++ = 'L';
}
*fp++ = FormatConversionCharToChar(conv.conv());
*fp++ = FormatConversionCharToChar(conv.conversion_char());
*fp = 0;
assert(fp < fmt + sizeof(fmt));
}
@ -100,17 +100,19 @@ bool ConvertNonNumericFloats(char sign_char, Float v,
char text[4], *ptr = text;
if (sign_char) *ptr++ = sign_char;
if (std::isnan(v)) {
ptr = std::copy_n(FormatConversionCharIsUpper(conv.conv()) ? "NAN" : "nan",
3, ptr);
ptr = std::copy_n(
FormatConversionCharIsUpper(conv.conversion_char()) ? "NAN" : "nan", 3,
ptr);
} else if (std::isinf(v)) {
ptr = std::copy_n(FormatConversionCharIsUpper(conv.conv()) ? "INF" : "inf",
3, ptr);
ptr = std::copy_n(
FormatConversionCharIsUpper(conv.conversion_char()) ? "INF" : "inf", 3,
ptr);
} else {
return false;
}
return sink->PutPaddedString(string_view(text, ptr - text), conv.width(), -1,
conv.flags().left);
conv.has_left_flag());
}
// Round up the last digit of the value.
@ -358,9 +360,9 @@ void WriteBufferToSink(char sign_char, string_view str,
static_cast<int>(sign_char != 0),
0)
: 0;
if (conv.flags().left) {
if (conv.has_left_flag()) {
right_spaces = missing_chars;
} else if (conv.flags().zero) {
} else if (conv.has_zero_flag()) {
zeros = missing_chars;
} else {
left_spaces = missing_chars;
@ -382,9 +384,9 @@ bool FloatToSink(const Float v, const ConversionSpec &conv,
if (std::signbit(abs_v)) {
sign_char = '-';
abs_v = -abs_v;
} else if (conv.flags().show_pos) {
} else if (conv.has_show_pos_flag()) {
sign_char = '+';
} else if (conv.flags().sign_col) {
} else if (conv.has_sign_col_flag()) {
sign_char = ' ';
}
@ -401,14 +403,14 @@ bool FloatToSink(const Float v, const ConversionSpec &conv,
Buffer buffer;
switch (conv.conv()) {
switch (conv.conversion_char()) {
case ConversionChar::f:
case ConversionChar::F:
if (!FloatToBuffer<FormatStyle::Fixed>(decomposed, precision, &buffer,
nullptr)) {
return FallbackToSnprintf(v, conv, sink);
}
if (!conv.flags().alt && buffer.back() == '.') buffer.pop_back();
if (!conv.has_alt_flag() && buffer.back() == '.') buffer.pop_back();
break;
case ConversionChar::e:
@ -417,9 +419,10 @@ bool FloatToSink(const Float v, const ConversionSpec &conv,
&exp)) {
return FallbackToSnprintf(v, conv, sink);
}
if (!conv.flags().alt && buffer.back() == '.') buffer.pop_back();
PrintExponent(exp, FormatConversionCharIsUpper(conv.conv()) ? 'E' : 'e',
&buffer);
if (!conv.has_alt_flag() && buffer.back() == '.') buffer.pop_back();
PrintExponent(
exp, FormatConversionCharIsUpper(conv.conversion_char()) ? 'E' : 'e',
&buffer);
break;
case ConversionChar::g:
@ -446,13 +449,15 @@ bool FloatToSink(const Float v, const ConversionSpec &conv,
}
exp = 0;
}
if (!conv.flags().alt) {
if (!conv.has_alt_flag()) {
while (buffer.back() == '0') buffer.pop_back();
if (buffer.back() == '.') buffer.pop_back();
}
if (exp) {
PrintExponent(exp, FormatConversionCharIsUpper(conv.conv()) ? 'E' : 'e',
&buffer);
PrintExponent(
exp,
FormatConversionCharIsUpper(conv.conversion_char()) ? 'E' : 'e',
&buffer);
}
break;