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Merge pull request #108836 from aaronfranke/json-grisu

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Use num_scientific (Grisu2) when stringifying JSON with full precision
This commit is contained in:
Thaddeus Crews
2025-09-30 11:19:12 -05:00
parent 54e8c8eecc a238af4d20
commit e256771e86
3 changed files with 30 additions and 23 deletions
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28
tests/core/io/test_json.h
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@@ -72,8 +72,8 @@ TEST_CASE("[JSON] Stringify arrays") {
CHECK(JSON::stringify(indented_array, "\t") == "[\n\t0,\n\t1,\n\t2,\n\t3,\n\t4,\n\t[\n\t\t0,\n\t\t1,\n\t\t2,\n\t\t3,\n\t\t4\n\t]\n]");
Array full_precision_array;
full_precision_array.push_back(0.123456789012345677);
CHECK(JSON::stringify(full_precision_array, "", true, true) == "[0.123456789012345677]");
full_precision_array.push_back(0.12345678901234568);
CHECK(JSON::stringify(full_precision_array, "", true, true) == "[0.12345678901234568]");
ERR_PRINT_OFF
Array self_array;
@@ -110,8 +110,8 @@ TEST_CASE("[JSON] Stringify dictionaries") {
CHECK(JSON::stringify(outer) == "{\"inner\":{\"key\":\"value\"}}");
Dictionary full_precision_dictionary;
full_precision_dictionary["key"] = 0.123456789012345677;
CHECK(JSON::stringify(full_precision_dictionary, "", true, true) == "{\"key\":0.123456789012345677}");
full_precision_dictionary["key"] = 0.12345678901234568;
CHECK(JSON::stringify(full_precision_dictionary, "", true, true) == "{\"key\":0.12345678901234568}");
ERR_PRINT_OFF
Dictionary self_dictionary;
@@ -352,16 +352,16 @@ TEST_CASE("[JSON] Serialization") {
static FpTestCase fp_tests_full_precision[] = {
{ 0.0, "0.0" },
{ 1000.1234567890123456789, "1000.12345678901238" },
{ -1000.1234567890123456789, "-1000.12345678901238" },
{ DBL_MAX, "179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.0" },
{ DBL_MAX - 1, "179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.0" },
{ std::pow(2, 53), "9007199254740992.0" },
{ -std::pow(2, 53), "-9007199254740992.0" },
{ 0.00000000000000011, "0.00000000000000011" },
{ -0.00000000000000011, "-0.00000000000000011" },
{ 1.0 / 3.0, "0.333333333333333315" },
{ 0.9999999999999999, "0.999999999999999889" },
{ 1000.1234567890123456789, "1000.1234567890124" },
{ -1000.1234567890123456789, "-1000.1234567890124" },
{ DBL_MAX, "1.7976931348623157e+308" },
{ DBL_MAX - 1, "1.7976931348623157e+308" },
{ std::pow(2, 53), "9.007199254740992e+15" },
{ -std::pow(2, 53), "-9.007199254740992e+15" },
{ 0.00000000000000011, "1.1e-16" },
{ -0.00000000000000011, "-1.1e-16" },
{ 1.0 / 3.0, "0.3333333333333333" },
{ 0.9999999999999999, "0.9999999999999999" },
{ 1.0000000000000001, "1.0" },
};