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AK: Format floats with precision in scientific notation where applicable

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Callum Law 2025-08-06 02:23:33 +12:00 • committed by Sam Atkins
parent 1474da31c7
commit 861bcbd9ad
Notes: github-actions[bot] 2025-08-11 16:11:59 +00:00
2 changed files with 75 additions and 54 deletions
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6
Tests/AK/TestFormat.cpp
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@ -267,6 +267,12 @@ TEST_CASE(floating_point_numbers)
EXPECT_EQ(ByteString::formatted("{:'.4}", 1234.5678), "1,234.5678");
EXPECT_EQ(ByteString::formatted("{:'.4}", -1234.5678), "-1,234.5678");
EXPECT_EQ(ByteString::formatted("{:.5}", 1.2345678e-15), "1.23456e-15");
EXPECT_EQ(ByteString::formatted("{:.5}", AK::NumericLimits<float>::max()), "3.40282e+38");
EXPECT_EQ(ByteString::formatted("{:.5}", AK::NumericLimits<float>::lowest()), "-3.40282e+38");
EXPECT_EQ(ByteString::formatted("{:.5}", 3.000001e30), "3e+30");
EXPECT_EQ(ByteString::formatted("{:.5}", 3.1e30), "3.1e+30");
EXPECT_EQ(ByteString::formatted("{:.30f}", 1.0), "1.000000000000000000000000000000");
EXPECT_EQ(ByteString::formatted("{:.30f}", 1.5), "1.500000000000000000000000000000");
EXPECT_EQ(ByteString::formatted("{:.30f}", -2.0), "-2.000000000000000000000000000000");