diff options
Diffstat (limited to 'absl/strings/numbers_test.cc')
| -rw-r--r-- | absl/strings/numbers_test.cc | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/absl/strings/numbers_test.cc b/absl/strings/numbers_test.cc index 04e4bd2a..41e95b80 100644 --- a/absl/strings/numbers_test.cc +++ b/absl/strings/numbers_test.cc @@ -406,6 +406,19 @@ TEST(NumbersTest, Atod) { EXPECT_TRUE(absl::SimpleAtod("-INF", &d)); EXPECT_TRUE(std::isinf(d) && (d < 0)); + // Parse DBL_MAX. Parsing something more than twice as big should also + // produce infinity. + EXPECT_TRUE(absl::SimpleAtod("1.7976931348623157e+308", &d)); + EXPECT_EQ(d, 1.7976931348623157e+308); + EXPECT_TRUE(absl::SimpleAtod("5e308", &d)); + EXPECT_TRUE(std::isinf(d) && (d > 0)); + + // Parse DBL_MIN (normal) and DBL_TRUE_MIN (subnormal). + EXPECT_TRUE(absl::SimpleAtod("2.2250738585072014e-308", &d)); + EXPECT_EQ(d, 2.2250738585072014e-308); + EXPECT_TRUE(absl::SimpleAtod("4.9406564584124654e-324", &d)); + EXPECT_EQ(d, 4.9406564584124654e-324); + // Leading and/or trailing whitespace is OK. EXPECT_TRUE(absl::SimpleAtod(" \t\r\n 2.718", &d)); EXPECT_EQ(d, 2.718); @@ -439,6 +452,14 @@ TEST(NumbersTest, Atod) { EXPECT_TRUE(absl::SimpleAtod("8.9", &d)); EXPECT_FALSE(absl::SimpleAtod("8,9", &d)); + // These examples are called out in the EiselLemire function's comments. + EXPECT_TRUE(absl::SimpleAtod("4503599627370497.5", &d)); + EXPECT_EQ(d, 4503599627370497.5); + EXPECT_TRUE(absl::SimpleAtod("1e+23", &d)); + EXPECT_EQ(d, 1e+23); + EXPECT_TRUE(absl::SimpleAtod("9223372036854775807", &d)); + EXPECT_EQ(d, 9223372036854775807); + // Some parsing algorithms don't always round correctly (but absl::SimpleAtod // should). This test case comes from // https://github.com/serde-rs/json/issues/707 |