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Add more boundary test cases for double and float parsing #366

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Merged
lemire merged 2 commits into from
Feb 4, 2026
+15 −0
Merged

Add more boundary test cases for double and float parsing #366

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f43d671
Add additional verification cases for double and float limits
zaewc Feb 4, 2026
3e2b5d3
refactor verification calls for double and float limits
zaewc Feb 4, 2026
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refactor verification calls for double and float limits
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@zaewc
zaewc committed Feb 4, 2026
commit 3e2b5d3dc39aed83f0492001f83e793ecfb71270
12 changes: 5 additions & 7 deletions tests/basictest.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1270,9 +1270,8 @@ TEST_CASE("double.general") {
verify("1.7976931348623157e308", 0x1.fffffffffffffp+1023);
verify("1.7976931348623158e308", 0x1.fffffffffffffp+1023);
verify("1.7976931348623158079e308", std::numeric_limits<double>::max());
verify("1.7976931348623158080e308",
std::numeric_limits<double>::infinity(),
std::errc::result_out_of_range);
verify("1.7976931348623158080e308", std::numeric_limits<double>::infinity(),
std::errc::result_out_of_range);
verify("4503599627370496.5", 4503599627370496.5);
verify("4503599627475352.5", 4503599627475352.5);
verify("4503599627475353.5", 4503599627475353.5);
Expand Down Expand Up @@ -1565,9 +1564,8 @@ TEST_CASE("float.general") {
verify("340282356779733661637539395458142568447",
std::numeric_limits<float>::max());
verify("0.3402823567797336616e39", std::numeric_limits<float>::max());
verify("0.3402823567797336617e39",
std::numeric_limits<float>::infinity(),
std::errc::result_out_of_range);
verify("0.3402823567797336617e39", std::numeric_limits<float>::infinity(),
std::errc::result_out_of_range);

verify("-1e-999", -0.0f, std::errc::result_out_of_range);
verify("1."
Expand All @@ -1578,7 +1576,7 @@ TEST_CASE("float.general") {
"175494140627517859246175898662808184331245864732796240031385942718174"
"6759860647699724722770042717456817626953125e-38",
0x1.fffff8p-127f);
verify("1.1754942807573642917e-38", 0x1.fffff8p-127f);
verify("1.1754942807573642917e-38", 0x1.fffffcp-127f);
verify("1.1754942807573642918e-38", std::numeric_limits<float>::min());
verify_runtime(
append_zeros("1."
Expand Down