From a15d890c34b5e3a6373c410ebc58453f2d52f43b Mon Sep 17 00:00:00 2001 From: Erick Tryzelaar Date: Sun, 16 Aug 2009 23:36:19 +0000 Subject: Modify APFloat to take a StringRef instead of a c string. This also adds unit tests to APFloat that mainly tests the string handling of APFloat, but not much else of it's api. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79210 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/ADT/APFloatTest.cpp | 106 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 unittests/ADT/APFloatTest.cpp (limited to 'unittests/ADT/APFloatTest.cpp') diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp new file mode 100644 index 0000000000..952e7a4766 --- /dev/null +++ b/unittests/ADT/APFloatTest.cpp @@ -0,0 +1,106 @@ +//===- llvm/unittest/ADT/APFloat.cpp - APFloat unit tests ---------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include +#include "llvm/Support/raw_ostream.h" +#include "gtest/gtest.h" +#include "llvm/ADT/APFloat.h" +#include "llvm/ADT/SmallString.h" + +using namespace llvm; + +namespace { + +TEST(APFloatTest, Zero) { + ASSERT_EQ(0.0f, APFloat(APFloat::IEEEsingle, 0.0f).convertToFloat()); + ASSERT_EQ(-0.0f, APFloat(APFloat::IEEEsingle, -0.0f).convertToFloat()); + + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, 0.0).convertToDouble()); + ASSERT_EQ(-0.0, APFloat(APFloat::IEEEdouble, -0.0).convertToDouble()); +} + +TEST(APFloatTest, SemanticsDeath) { + ASSERT_DEATH(APFloat(APFloat::IEEEsingle, 0.0f).convertToDouble(), "Float semantics are not IEEEdouble"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, 0.0 ).convertToFloat(), "Float semantics are not IEEEsingle"); +} + +TEST(APFloatTest, fromString) { + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0.").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, ".0").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0.0").convertToDouble()); + ASSERT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0").convertToDouble()); + ASSERT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.").convertToDouble()); + ASSERT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-.0").convertToDouble()); + ASSERT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0.0").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0e1234").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0e1234").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "00000.").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0000.00000").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, ".00000").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0.").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0.e1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0.e+1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0.e-1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e0").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e-0").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e1234").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "000.0000e-1234").convertToDouble()); + + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x0p1").convertToDouble()); + ASSERT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x00000.p1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x0000.00000p1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x.00000p1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x0.p1").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x0p1234").convertToDouble()); + ASSERT_EQ(-0.0, APFloat(APFloat::IEEEdouble, "-0x0p1234").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x00000.p1234").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x0000.00000p1234").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x.00000p1234").convertToDouble()); + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, "0x0.p1234").convertToDouble()); + + ASSERT_EQ(0.0, APFloat(APFloat::IEEEdouble, StringRef("0e1\02", 3)).convertToDouble()); +} + +TEST(APFloatTest, StringDeath) { + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, ""), "Invalid string length"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "-"), "String is only a minus!"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "0x"), "Invalid string"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "."), "String cannot be just a dot"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "-."), "String cannot be just a dot"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "0x."), "String cannot be just a dot"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "-0x."),"String cannot be just a dot"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "0x0"), "Hex strings require an exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "0e"), "Exponent has no digits"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "0e+"), "Exponent has no digits"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "0e-"), "Exponent has no digits"); + + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("\0", 1)), "Invalid character in digit string"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\0", 2)), "Invalid character in digit string"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\02", 3)), "Invalid character in digit string"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1\02e1", 5)), "Invalid character in digit string"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e\0", 3)), "Invalid character in exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e1\0", 4)), "Invalid character in exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("1e1\02", 5)), "Invalid character in exponent"); + + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "1.0f"), "Invalid character in digit string"); + + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x\0", 3)), "Hex strings require an exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\0", 4)), "Hex strings require an exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\02", 5)), "Hex strings require an exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1\02p1", 7)), "Hex strings require an exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p\0", 5)), "Invalid character in exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p1\0", 6)), "Invalid character in exponent"); + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, StringRef("0x1p1\02", 7)), "Invalid character in exponent"); + + ASSERT_DEATH(APFloat(APFloat::IEEEdouble, "0x1p0f"), "Invalid character in exponent"); +} + +} -- cgit v1.2.3