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-rw-r--r--llvm/include/llvm/Support/NativeFormatting.h32
-rw-r--r--llvm/lib/Support/NativeFormatting.cpp232
-rw-r--r--llvm/lib/Support/raw_ostream.cpp32
-rw-r--r--llvm/unittests/Support/CMakeLists.txt1
-rw-r--r--llvm/unittests/Support/NativeFormatTests.cpp176
5 files changed, 369 insertions, 104 deletions
diff --git a/llvm/include/llvm/Support/NativeFormatting.h b/llvm/include/llvm/Support/NativeFormatting.h
index 6f7e0773eb5..56da16373b5 100644
--- a/llvm/include/llvm/Support/NativeFormatting.h
+++ b/llvm/include/llvm/Support/NativeFormatting.h
@@ -10,22 +10,32 @@
#ifndef LLVM_SUPPORT_NATIVE_FORMATTING_H
#define LLVM_SUPPORT_NATIVE_FORMATTING_H
+#include "llvm/ADT/Optional.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdint>
namespace llvm {
-enum class FloatStyle { Exponent, Decimal };
-
-void write_ulong(raw_ostream &S, unsigned long N, std::size_t MinWidth);
-void write_long(raw_ostream &S, long N, std::size_t MinWidth);
-void write_ulonglong(raw_ostream &S, unsigned long long N,
- std::size_t MinWidth);
-void write_longlong(raw_ostream &S, long long N, std::size_t MinWidth);
-void write_hex(raw_ostream &S, unsigned long long N, std::size_t MinWidth,
- bool Upper, bool Prefix);
-void write_double(raw_ostream &S, double D, std::size_t MinWidth,
- std::size_t MinDecimals, FloatStyle Style);
+enum class FloatStyle { Exponent, ExponentUpper, Fixed, Percent };
+enum class IntegerStyle {
+ Integer,
+ Number,
+};
+enum class HexPrintStyle { Upper, Lower, PrefixUpper, PrefixLower };
+
+size_t getDefaultPrecision(FloatStyle Style);
+
+void write_integer(raw_ostream &S, unsigned int N, IntegerStyle Style);
+void write_integer(raw_ostream &S, int N, IntegerStyle Style);
+void write_integer(raw_ostream &S, unsigned long N, IntegerStyle Style);
+void write_integer(raw_ostream &S, long N, IntegerStyle Style);
+void write_integer(raw_ostream &S, unsigned long long N, IntegerStyle Style);
+void write_integer(raw_ostream &S, long long N, IntegerStyle Style);
+
+void write_hex(raw_ostream &S, uint64_t N, HexPrintStyle Style,
+ Optional<size_t> Width = None);
+void write_double(raw_ostream &S, double D, FloatStyle Style,
+ Optional<size_t> Precision = None);
}
#endif \ No newline at end of file
diff --git a/llvm/lib/Support/NativeFormatting.cpp b/llvm/lib/Support/NativeFormatting.cpp
index 9989488ddcc..bbbb1fbbd4b 100644
--- a/llvm/lib/Support/NativeFormatting.cpp
+++ b/llvm/lib/Support/NativeFormatting.cpp
@@ -9,6 +9,7 @@
#include "llvm/Support/NativeFormatting.h"
+#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Format.h"
@@ -20,96 +21,121 @@ static int format_to_buffer(T Value, char (&Buffer)[N]) {
char *EndPtr = std::end(Buffer);
char *CurPtr = EndPtr;
- while (Value) {
+ do {
*--CurPtr = '0' + char(Value % 10);
Value /= 10;
- }
+ } while (Value);
return EndPtr - CurPtr;
}
-void llvm::write_ulong(raw_ostream &S, unsigned long N, std::size_t MinWidth) {
- // Zero is a special case.
- if (N == 0) {
- if (MinWidth > 0)
- S.indent(MinWidth - 1);
- S << '0';
- return;
+static void writeWithCommas(raw_ostream &S, ArrayRef<char> Buffer) {
+ assert(!Buffer.empty());
+
+ ArrayRef<char> ThisGroup;
+ int InitialDigits = ((Buffer.size() - 1) % 3) + 1;
+ ThisGroup = Buffer.take_front(InitialDigits);
+ S.write(ThisGroup.data(), ThisGroup.size());
+
+ Buffer = Buffer.drop_front(InitialDigits);
+ assert(Buffer.size() % 3 == 0);
+ while (!Buffer.empty()) {
+ S << ',';
+ ThisGroup = Buffer.take_front(3);
+ S.write(ThisGroup.data(), 3);
+ Buffer = Buffer.drop_front(3);
}
+}
+
+template <typename T>
+static void write_unsigned_impl(raw_ostream &S, T N, IntegerStyle Style,
+ bool IsNegative) {
+ static_assert(std::is_unsigned<T>::value, "Value is not unsigned!");
+
+ char NumberBuffer[128];
+ std::memset(NumberBuffer, '0', sizeof(NumberBuffer));
+
+ size_t Len = 0;
+ Len = format_to_buffer(N, NumberBuffer);
+
+ if (IsNegative)
+ S << '-';
+ if (Style == IntegerStyle::Number) {
+ writeWithCommas(S, ArrayRef<char>(std::end(NumberBuffer) - Len, Len));
+ } else {
+ S.write(std::end(NumberBuffer) - Len, Len);
+ }
+}
- char NumberBuffer[20];
- int Len = format_to_buffer(N, NumberBuffer);
- int Pad = (MinWidth == 0) ? 0 : MinWidth - Len;
- if (Pad > 0)
- S.indent(Pad);
- S.write(std::end(NumberBuffer) - Len, Len);
+template <typename T>
+static void write_unsigned(raw_ostream &S, T N, IntegerStyle Style,
+ bool IsNegative = false) {
+ // Output using 32-bit div/mod if possible.
+ if (N == static_cast<uint32_t>(N))
+ write_unsigned_impl(S, static_cast<uint32_t>(N), Style, IsNegative);
+ else
+ write_unsigned_impl(S, N, Style, IsNegative);
}
-void llvm::write_long(raw_ostream &S, long N, std::size_t MinWidth) {
+template <typename T>
+static void write_signed(raw_ostream &S, T N, IntegerStyle Style) {
+ static_assert(std::is_signed<T>::value, "Value is not signed!");
+
+ using UnsignedT = typename std::make_unsigned<T>::type;
+
if (N >= 0) {
- write_ulong(S, static_cast<unsigned long>(N), MinWidth);
+ write_unsigned(S, static_cast<UnsignedT>(N), Style);
return;
}
- unsigned long UN = -(unsigned long)N;
- if (MinWidth > 0)
- --MinWidth;
-
- char NumberBuffer[20];
- int Len = format_to_buffer(UN, NumberBuffer);
- int Pad = (MinWidth == 0) ? 0 : MinWidth - Len;
- if (Pad > 0)
- S.indent(Pad);
- S.write('-');
- S.write(std::end(NumberBuffer) - Len, Len);
+ UnsignedT UN = -(UnsignedT)N;
+ write_unsigned(S, UN, Style, true);
}
-void llvm::write_ulonglong(raw_ostream &S, unsigned long long N,
- std::size_t MinWidth) {
- // Output using 32-bit div/mod when possible.
- if (N == static_cast<unsigned long>(N)) {
- write_ulong(S, static_cast<unsigned long>(N), MinWidth);
- return;
- }
+void llvm::write_integer(raw_ostream &S, unsigned int N, IntegerStyle Style) {
+ write_unsigned(S, N, Style);
+}
- char NumberBuffer[32];
- int Len = format_to_buffer(N, NumberBuffer);
- int Pad = (MinWidth == 0) ? 0 : MinWidth - Len;
- if (Pad > 0)
- S.indent(Pad);
- S.write(std::end(NumberBuffer) - Len, Len);
+void llvm::write_integer(raw_ostream &S, int N, IntegerStyle Style) {
+ write_signed(S, N, Style);
}
-void llvm::write_longlong(raw_ostream &S, long long N, std::size_t MinWidth) {
- if (N >= 0) {
- write_ulonglong(S, static_cast<unsigned long long>(N), MinWidth);
- return;
- }
+void llvm::write_integer(raw_ostream &S, unsigned long N, IntegerStyle Style) {
+ write_unsigned(S, N, Style);
+}
- // Avoid undefined behavior on INT64_MIN with a cast.
- unsigned long long UN = -(unsigned long long)N;
- if (MinWidth > 0)
- --MinWidth;
-
- char NumberBuffer[32];
- int Len = format_to_buffer(UN, NumberBuffer);
- int Pad = (MinWidth == 0) ? 0 : MinWidth - Len;
- if (Pad > 0)
- S.indent(Pad);
- S.write('-');
- S.write(std::end(NumberBuffer) - Len, Len);
+void llvm::write_integer(raw_ostream &S, long N, IntegerStyle Style) {
+ write_signed(S, N, Style);
}
-void llvm::write_hex(raw_ostream &S, unsigned long long N, std::size_t MinWidth,
- bool Upper, bool Prefix) {
+void llvm::write_integer(raw_ostream &S, unsigned long long N,
+ IntegerStyle Style) {
+ write_unsigned(S, N, Style);
+}
+
+void llvm::write_integer(raw_ostream &S, long long N, IntegerStyle Style) {
+ write_signed(S, N, Style);
+}
+
+void llvm::write_hex(raw_ostream &S, uint64_t N, HexPrintStyle Style,
+ Optional<size_t> Width) {
+ const size_t kMaxWidth = 128u;
+
+ size_t W = std::min(kMaxWidth, Width.getValueOr(0u));
+
unsigned Nibbles = (64 - countLeadingZeros(N) + 3) / 4;
+ bool Prefix = (Style == HexPrintStyle::PrefixLower ||
+ Style == HexPrintStyle::PrefixUpper);
+ bool Upper =
+ (Style == HexPrintStyle::Upper || Style == HexPrintStyle::PrefixUpper);
unsigned PrefixChars = Prefix ? 2 : 0;
- unsigned Width = std::max(static_cast<unsigned>(MinWidth),
- std::max(1u, Nibbles) + PrefixChars);
-
- char NumberBuffer[20] = "0x0000000000000000";
- if (!Prefix)
- NumberBuffer[1] = '0';
- char *EndPtr = NumberBuffer + Width;
+ unsigned NumChars =
+ std::max(static_cast<unsigned>(W), std::max(1u, Nibbles) + PrefixChars);
+
+ char NumberBuffer[kMaxWidth];
+ ::memset(NumberBuffer, '0', llvm::array_lengthof(NumberBuffer));
+ if (Prefix)
+ NumberBuffer[1] = 'x';
+ char *EndPtr = NumberBuffer + NumChars;
char *CurPtr = EndPtr;
while (N) {
unsigned char x = static_cast<unsigned char>(N) % 16;
@@ -117,22 +143,34 @@ void llvm::write_hex(raw_ostream &S, unsigned long long N, std::size_t MinWidth,
N /= 16;
}
- S.write(NumberBuffer, Width);
+ S.write(NumberBuffer, NumChars);
}
-void llvm::write_double(raw_ostream &S, double N, std::size_t MinWidth,
- std::size_t MinDecimals, FloatStyle Style) {
- char Letter = (Style == FloatStyle::Exponent) ? 'e' : 'f';
+void llvm::write_double(raw_ostream &S, double N, FloatStyle Style,
+ Optional<size_t> Precision) {
+ size_t Prec = Precision.getValueOr(getDefaultPrecision(Style));
+
+ if (std::isnan(N)) {
+ S << "nan";
+ return;
+ } else if (std::isinf(N)) {
+ S << "INF";
+ return;
+ }
+
+ char Letter;
+ if (Style == FloatStyle::Exponent)
+ Letter = 'e';
+ else if (Style == FloatStyle::ExponentUpper)
+ Letter = 'E';
+ else
+ Letter = 'f';
+
SmallString<8> Spec;
llvm::raw_svector_ostream Out(Spec);
- Out << '%';
- if (MinWidth > 0)
- Out << MinWidth;
- if (MinDecimals > 0)
- Out << '.' << MinDecimals;
- Out << Letter;
-
- if (Style == FloatStyle::Exponent) {
+ Out << "%." << Prec << Letter;
+
+ if (Style == FloatStyle::Exponent || Style == FloatStyle::ExponentUpper) {
#ifdef _WIN32
// On MSVCRT and compatible, output of %e is incompatible to Posix
// by default. Number of exponent digits should be at least 2. "%+03d"
@@ -140,7 +178,9 @@ void llvm::write_double(raw_ostream &S, double N, std::size_t MinWidth,
#if defined(__MINGW32__)
// FIXME: It should be generic to C++11.
if (N == 0.0 && std::signbit(N)) {
- S << "-0.000000e+00";
+ const char *NegativeZero = "-0.000000e+00";
+ writePadding(S, Width, strlen(NegativeZero));
+ S << NegativeZero;
return;
}
#else
@@ -148,16 +188,18 @@ void llvm::write_double(raw_ostream &S, double N, std::size_t MinWidth,
// negative zero
if (fpcl == _FPCLASS_NZ) {
- S << "-0.000000e+00";
+ const char *NegativeZero = "-0.000000e+00";
+ S << NegativeZero;
return;
}
#endif
- char buf[16];
+ char buf[32];
unsigned len;
len = format(Spec.c_str(), N).snprint(buf, sizeof(buf));
if (len <= sizeof(buf) - 2) {
- if (len >= 5 && buf[len - 5] == 'e' && buf[len - 3] == '0') {
+ if (len >= 5 && (buf[len - 5] == 'e' || buf[len - 5] == 'E') &&
+ buf[len - 3] == '0') {
int cs = buf[len - 4];
if (cs == '+' || cs == '-') {
int c1 = buf[len - 2];
@@ -177,5 +219,27 @@ void llvm::write_double(raw_ostream &S, double N, std::size_t MinWidth,
#endif
}
- S << format(Spec.c_str(), N);
+ if (Style == FloatStyle::Percent)
+ N *= 100.0;
+
+ char Buf[32];
+ unsigned Len;
+ Len = format(Spec.c_str(), N).snprint(Buf, sizeof(Buf));
+ if (Style == FloatStyle::Percent)
+ ++Len;
+ S << Buf;
+ if (Style == FloatStyle::Percent)
+ S << '%';
+}
+
+size_t llvm::getDefaultPrecision(FloatStyle Style) {
+ switch (Style) {
+ case FloatStyle::Exponent:
+ case FloatStyle::ExponentUpper:
+ return 6; // Number of decimal places.
+ case FloatStyle::Fixed:
+ case FloatStyle::Percent:
+ return 2; // Number of decimal places.
+ }
+ LLVM_BUILTIN_UNREACHABLE;
}
diff --git a/llvm/lib/Support/raw_ostream.cpp b/llvm/lib/Support/raw_ostream.cpp
index 8101bc1d2f3..b6835e3ebfe 100644
--- a/llvm/lib/Support/raw_ostream.cpp
+++ b/llvm/lib/Support/raw_ostream.cpp
@@ -114,27 +114,27 @@ void raw_ostream::SetBufferAndMode(char *BufferStart, size_t Size,
}
raw_ostream &raw_ostream::operator<<(unsigned long N) {
- write_ulong(*this, N, 0);
+ write_integer(*this, static_cast<uint64_t>(N), IntegerStyle::Integer);
return *this;
}
raw_ostream &raw_ostream::operator<<(long N) {
- write_long(*this, N, 0);
+ write_integer(*this, static_cast<int64_t>(N), IntegerStyle::Integer);
return *this;
}
raw_ostream &raw_ostream::operator<<(unsigned long long N) {
- write_ulonglong(*this, N, 0);
+ write_integer(*this, static_cast<uint64_t>(N), IntegerStyle::Integer);
return *this;
}
raw_ostream &raw_ostream::operator<<(long long N) {
- write_longlong(*this, N, 0);
+ write_integer(*this, static_cast<int64_t>(N), IntegerStyle::Integer);
return *this;
}
raw_ostream &raw_ostream::write_hex(unsigned long long N) {
- llvm::write_hex(*this, N, 0, false, false);
+ llvm::write_hex(*this, N, HexPrintStyle::Lower);
return *this;
}
@@ -179,12 +179,12 @@ raw_ostream &raw_ostream::write_escaped(StringRef Str,
}
raw_ostream &raw_ostream::operator<<(const void *P) {
- llvm::write_hex(*this, (uintptr_t)P, 0, false, true);
+ llvm::write_hex(*this, (uintptr_t)P, HexPrintStyle::PrefixLower);
return *this;
}
raw_ostream &raw_ostream::operator<<(double N) {
- llvm::write_double(*this, N, 0, 0, FloatStyle::Exponent);
+ llvm::write_double(*this, N, FloatStyle::Exponent);
return *this;
}
@@ -331,9 +331,23 @@ raw_ostream &raw_ostream::operator<<(const FormattedString &FS) {
raw_ostream &raw_ostream::operator<<(const FormattedNumber &FN) {
if (FN.Hex) {
- llvm::write_hex(*this, FN.HexValue, FN.Width, FN.Upper, FN.HexPrefix);
+ HexPrintStyle Style;
+ if (FN.Upper && FN.HexPrefix)
+ Style = HexPrintStyle::PrefixUpper;
+ else if (FN.Upper && !FN.HexPrefix)
+ Style = HexPrintStyle::Upper;
+ else if (!FN.Upper && FN.HexPrefix)
+ Style = HexPrintStyle::PrefixLower;
+ else
+ Style = HexPrintStyle::Lower;
+ llvm::write_hex(*this, FN.HexValue, Style, FN.Width);
} else {
- llvm::write_longlong(*this, FN.DecValue, FN.Width);
+ llvm::SmallString<16> Buffer;
+ llvm::raw_svector_ostream Stream(Buffer);
+ llvm::write_integer(Stream, FN.DecValue, IntegerStyle::Integer);
+ if (Buffer.size() < FN.Width)
+ indent(FN.Width - Buffer.size());
+ (*this) << Buffer;
}
return *this;
}
diff --git a/llvm/unittests/Support/CMakeLists.txt b/llvm/unittests/Support/CMakeLists.txt
index 5ff5bdfccda..daf6524acf6 100644
--- a/llvm/unittests/Support/CMakeLists.txt
+++ b/llvm/unittests/Support/CMakeLists.txt
@@ -29,6 +29,7 @@ add_llvm_unittest(SupportTests
MathExtrasTest.cpp
MemoryBufferTest.cpp
MemoryTest.cpp
+ NativeFormatTests.cpp
Path.cpp
ProcessTest.cpp
ProgramTest.cpp
diff --git a/llvm/unittests/Support/NativeFormatTests.cpp b/llvm/unittests/Support/NativeFormatTests.cpp
new file mode 100644
index 00000000000..94508b7367d
--- /dev/null
+++ b/llvm/unittests/Support/NativeFormatTests.cpp
@@ -0,0 +1,176 @@
+//===- llvm/unittest/Support/NativeFormatTests.cpp - formatting tests -----===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/NativeFormatting.h"
+#include "llvm/Support/raw_ostream.h"
+#include "gtest/gtest.h"
+
+#include <type_traits>
+
+using namespace llvm;
+
+namespace {
+
+template <typename T> std::string format_number(T N, IntegerStyle Style) {
+ std::string S;
+ llvm::raw_string_ostream Str(S);
+ write_integer(Str, N, Style);
+ Str.flush();
+ return S;
+}
+
+std::string format_number(uint64_t N, HexPrintStyle Style,
+ Optional<size_t> Width = None) {
+ std::string S;
+ llvm::raw_string_ostream Str(S);
+ write_hex(Str, N, Style, Width);
+ Str.flush();
+ return S;
+}
+
+std::string format_number(double D, FloatStyle Style,
+ Optional<size_t> Precision = None) {
+ std::string S;
+ llvm::raw_string_ostream Str(S);
+ write_double(Str, D, Style, Precision);
+ Str.flush();
+ return S;
+}
+
+// Test basic number formatting with various styles and default width and
+// precision.
+TEST(NativeFormatTest, BasicIntegerTests) {
+ // Simple integers with no decimal.
+ EXPECT_EQ("0", format_number(0, IntegerStyle::Integer));
+ EXPECT_EQ("2425", format_number(2425, IntegerStyle::Integer));
+ EXPECT_EQ("-2425", format_number(-2425, IntegerStyle::Integer));
+
+ EXPECT_EQ("0", format_number(0LL, IntegerStyle::Integer));
+ EXPECT_EQ("257257257235709",
+ format_number(257257257235709LL, IntegerStyle::Integer));
+ EXPECT_EQ("-257257257235709",
+ format_number(-257257257235709LL, IntegerStyle::Integer));
+
+ // Number formatting.
+ EXPECT_EQ("0", format_number(0, IntegerStyle::Number));
+ EXPECT_EQ("2,425", format_number(2425, IntegerStyle::Number));
+ EXPECT_EQ("-2,425", format_number(-2425, IntegerStyle::Number));
+ EXPECT_EQ("257,257,257,235,709",
+ format_number(257257257235709LL, IntegerStyle::Number));
+ EXPECT_EQ("-257,257,257,235,709",
+ format_number(-257257257235709LL, IntegerStyle::Number));
+
+ // Hex formatting.
+ // lower case, prefix.
+ EXPECT_EQ("0x0", format_number(0, HexPrintStyle::PrefixLower));
+ EXPECT_EQ("0xbeef", format_number(0xbeefLL, HexPrintStyle::PrefixLower));
+ EXPECT_EQ("0xdeadbeef",
+ format_number(0xdeadbeefLL, HexPrintStyle::PrefixLower));
+
+ // upper-case, prefix.
+ EXPECT_EQ("0x0", format_number(0, HexPrintStyle::PrefixUpper));
+ EXPECT_EQ("0xBEEF", format_number(0xbeefLL, HexPrintStyle::PrefixUpper));
+ EXPECT_EQ("0xDEADBEEF",
+ format_number(0xdeadbeefLL, HexPrintStyle::PrefixUpper));
+
+ // lower-case, no prefix
+ EXPECT_EQ("0", format_number(0, HexPrintStyle::Lower));
+ EXPECT_EQ("beef", format_number(0xbeefLL, HexPrintStyle::Lower));
+ EXPECT_EQ("deadbeef", format_number(0xdeadbeefLL, HexPrintStyle::Lower));
+
+ // upper-case, no prefix.
+ EXPECT_EQ("0", format_number(0, HexPrintStyle::Upper));
+ EXPECT_EQ("BEEF", format_number(0xbeef, HexPrintStyle::Upper));
+ EXPECT_EQ("DEADBEEF", format_number(0xdeadbeef, HexPrintStyle::Upper));
+}
+
+// Test basic floating point formatting with various styles and default width
+// and precision.
+TEST(NativeFormatTest, BasicFloatingPointTests) {
+ // Double
+ EXPECT_EQ("0.000000e+00", format_number(0.0, FloatStyle::Exponent));
+ EXPECT_EQ("-0.000000e+00", format_number(-0.0, FloatStyle::Exponent));
+ EXPECT_EQ("1.100000e+00", format_number(1.1, FloatStyle::Exponent));
+ EXPECT_EQ("1.100000E+00", format_number(1.1, FloatStyle::ExponentUpper));
+
+ // Default precision is 2 for floating points.
+ EXPECT_EQ("1.10", format_number(1.1, FloatStyle::Fixed));
+ EXPECT_EQ("1.34", format_number(1.34, FloatStyle::Fixed));
+ EXPECT_EQ("1.34", format_number(1.344, FloatStyle::Fixed));
+ EXPECT_EQ("1.35", format_number(1.346, FloatStyle::Fixed));
+}
+
+// Test common boundary cases and min/max conditions.
+TEST(NativeFormatTest, BoundaryTests) {
+ // Min and max.
+ EXPECT_EQ("18446744073709551615",
+ format_number(UINT64_MAX, IntegerStyle::Integer));
+
+ EXPECT_EQ("9223372036854775807",
+ format_number(INT64_MAX, IntegerStyle::Integer));
+ EXPECT_EQ("-9223372036854775808",
+ format_number(INT64_MIN, IntegerStyle::Integer));
+
+ EXPECT_EQ("4294967295", format_number(UINT32_MAX, IntegerStyle::Integer));
+ EXPECT_EQ("2147483647", format_number(INT32_MAX, IntegerStyle::Integer));
+ EXPECT_EQ("-2147483648", format_number(INT32_MIN, IntegerStyle::Integer));
+
+ EXPECT_EQ("nan", format_number(std::numeric_limits<double>::quiet_NaN(),
+ FloatStyle::Fixed));
+ EXPECT_EQ("INF", format_number(std::numeric_limits<double>::infinity(),
+ FloatStyle::Fixed));
+}
+
+TEST(NativeFormatTest, HexTests) {
+ // Test hex formatting with different widths and precisions.
+
+ // Width less than the value should print the full value anyway.
+ EXPECT_EQ("0x0", format_number(0, HexPrintStyle::PrefixLower, 0));
+ EXPECT_EQ("0xabcde", format_number(0xABCDE, HexPrintStyle::PrefixLower, 3));
+
+ // Precision greater than the value should pad with 0s.
+ // TODO: The prefix should not be counted in the precision. But unfortunately
+ // it is and we have to live with it unless we fix all existing users of
+ // prefixed hex formatting.
+ EXPECT_EQ("0x000", format_number(0, HexPrintStyle::PrefixLower, 5));
+ EXPECT_EQ("0x0abcde", format_number(0xABCDE, HexPrintStyle::PrefixLower, 8));
+
+ EXPECT_EQ("00000", format_number(0, HexPrintStyle::Lower, 5));
+ EXPECT_EQ("000abcde", format_number(0xABCDE, HexPrintStyle::Lower, 8));
+
+ // Try printing more digits than can fit in a uint64.
+ EXPECT_EQ("0x00000000000000abcde",
+ format_number(0xABCDE, HexPrintStyle::PrefixLower, 21));
+}
+
+TEST(NativeFormatTest, IntegerTests) {
+ EXPECT_EQ("-10", format_number(-10, IntegerStyle::Integer));
+ EXPECT_EQ("-100", format_number(-100, IntegerStyle::Integer));
+ EXPECT_EQ("-1000", format_number(-1000, IntegerStyle::Integer));
+ EXPECT_EQ("-1234567890", format_number(-1234567890, IntegerStyle::Integer));
+ EXPECT_EQ("10", format_number(10, IntegerStyle::Integer));
+ EXPECT_EQ("100", format_number(100, IntegerStyle::Integer));
+ EXPECT_EQ("1000", format_number(1000, IntegerStyle::Integer));
+ EXPECT_EQ("1234567890", format_number(1234567890, IntegerStyle::Integer));
+}
+
+TEST(NativeFormatTest, CommaTests) {
+ EXPECT_EQ("0", format_number(0, IntegerStyle::Number));
+ EXPECT_EQ("10", format_number(10, IntegerStyle::Number));
+ EXPECT_EQ("100", format_number(100, IntegerStyle::Number));
+ EXPECT_EQ("1,000", format_number(1000, IntegerStyle::Number));
+ EXPECT_EQ("1,234,567,890", format_number(1234567890, IntegerStyle::Number));
+
+ EXPECT_EQ("-10", format_number(-10, IntegerStyle::Number));
+ EXPECT_EQ("-100", format_number(-100, IntegerStyle::Number));
+ EXPECT_EQ("-1,000", format_number(-1000, IntegerStyle::Number));
+ EXPECT_EQ("-1,234,567,890", format_number(-1234567890, IntegerStyle::Number));
+}
+}
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