Change default # of digits for APFloat::toString
This is a re-commit of r189442; I'll follow up with clang changes.
The previous default was almost, but not quite enough digits to
represent a floating-point value in a manner which preserves the
representation when it's read back in. The larger default is much
less confusing.
I spent some time looking into printing exactly the right number of
digits if a precision isn't specified, but it's kind of complicated,
and I'm not really sure I understand what APFloat::toString is supposed
to output for FormatPrecision != 0 (or maybe the current API specification
is just silly, not sure which). I have a WIP patch if anyone is interested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189624 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp
index 3b69de2..e57c8d4 100644
--- a/unittests/ADT/APFloatTest.cpp
+++ b/unittests/ADT/APFloatTest.cpp
@@ -866,10 +866,11 @@
ASSERT_EQ("0.0101", convertToString(1.01E-2, 5, 2));
ASSERT_EQ("0.0101", convertToString(1.01E-2, 4, 2));
ASSERT_EQ("1.01E-2", convertToString(1.01E-2, 5, 1));
- ASSERT_EQ("0.7853981633974483", convertToString(0.78539816339744830961, 0, 3));
- ASSERT_EQ("4.940656458412465E-324", convertToString(4.9406564584124654e-324, 0, 3));
- ASSERT_EQ("873.1834", convertToString(873.1834, 0, 1));
- ASSERT_EQ("8.731834E+2", convertToString(873.1834, 0, 0));
+ ASSERT_EQ("0.78539816339744828", convertToString(0.78539816339744830961, 0, 3));
+ ASSERT_EQ("4.9406564584124654E-324", convertToString(4.9406564584124654e-324, 0, 3));
+ ASSERT_EQ("873.18340000000001", convertToString(873.1834, 0, 1));
+ ASSERT_EQ("8.7318340000000001E+2", convertToString(873.1834, 0, 0));
+ ASSERT_EQ("1.7976931348623157E+308", convertToString(1.7976931348623157E+308, 0, 0));
}
TEST(APFloatTest, toInteger) {