mirror of
https://github.com/fastfloat/fast_float.git
synced 2025-12-07 01:06:48 +08:00
overly precise tests for imprecise floats
This commit is contained in:
Anders Dalvander
parent
da819feb74
commit
ac453a091a
@ -62,7 +62,8 @@
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.str()
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#define fHexAndDec(v) \
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(std::ostringstream{} << std::hexfloat << (v) << " (" << std::defaultfloat \
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<< (v) << ")") \
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<< std::setprecision(DBL_MAX_10_EXP + 1) << (v) \
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<< ")") \
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.str()
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char const *round_name(int d) {
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@ -1482,6 +1483,11 @@ TEST_CASE("float.inf") {
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}
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TEST_CASE("float.general") {
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// max
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verify("340282346638528859811704183484516925440", 0x1.fffffep+127f);
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// -max
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verify("-340282346638528859811704183484516925440", -0x1.fffffep+127f);
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verify("-1e-999", -0.0f, std::errc::result_out_of_range);
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verify("1."
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"175494140627517859246175898662808184331245864732796240031385942718174"
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@ -1727,3 +1733,328 @@ TEST_CASE("float.decimal_point") {
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"96875",
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0.00000000000000000000000000000000000001175494210692441075487029444849287348827052428745893333857174530571588870475618904265502351336181163787841796875f);
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}
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#ifdef __STDCPP_FLOAT16_T__
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TEST_CASE("float16.inf") {
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verify("INF", std::numeric_limits<std::float16_t>::infinity());
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verify("-INF", -std::numeric_limits<std::float16_t>::infinity());
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verify("INFINITY", std::numeric_limits<std::float16_t>::infinity());
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verify("-INFINITY", -std::numeric_limits<std::float16_t>::infinity());
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verify("infinity", std::numeric_limits<std::float16_t>::infinity());
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verify("-infinity", -std::numeric_limits<std::float16_t>::infinity());
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verify("inf", std::numeric_limits<std::float16_t>::infinity());
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verify("-inf", -std::numeric_limits<std::float16_t>::infinity());
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verify("1234456789012345678901234567890e9999999999999999999999999999",
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std::numeric_limits<std::float16_t>::infinity(),
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std::errc::result_out_of_range);
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verify("2e3000", std::numeric_limits<std::float16_t>::infinity(),
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std::errc::result_out_of_range);
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verify("3.5028234666e38", std::numeric_limits<std::float16_t>::infinity(),
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std::errc::result_out_of_range);
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}
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TEST_CASE("float16.general") {
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// max
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verify("65504", 0x1.ffcp+15f16);
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// -max
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verify("-65504", -0x1.ffcp+15f16);
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// min
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verify("0.000060975551605224609375", 0x1.ff8p-15f16);
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verify("6.0975551605224609375e-5", 0x1.ff8p-15f16);
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// denorm_min
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verify("0.000000059604644775390625", 0x1p-24f16);
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verify("5.9604644775390625e-8", 0x1p-24f16);
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// -min
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verify("-0.000060975551605224609375", -0x1.ff8p-15f16);
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verify("-6.0975551605224609375e-5", -0x1.ff8p-15f16);
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// -denorm_min
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verify("-0.000000059604644775390625", -0x1p-24f16);
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verify("-5.9604644775390625e-8", -0x1p-24f16);
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verify("-1e-999", -0.0f16, std::errc::result_out_of_range);
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verify("6.0975551605224609375", 0x1.864p+2f16);
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verify_runtime(append_zeros("6.0975551605224609375", 655), 0x1.864p+2f16);
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verify_runtime(append_zeros("6.0975551605224609375", 656), 0x1.864p+2f16);
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verify_runtime(append_zeros("6.0975551605224609375", 1000), 0x1.864p+2f16);
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verify_runtime(append_zeros("6.0975551605224609375", 655) +
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std::string("e-5"),
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0x1.ff8p-15f16);
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verify_runtime(append_zeros("6.0975551605224609375", 656) +
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std::string("e-5"),
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0x1.ff8p-15f16);
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verify_runtime(append_zeros("6.0975551605224609375", 1000) +
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std::string("e-5"),
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0x1.ff8p-15f16);
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verify("-0", -0.0f16);
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// verify("1090544144181609348835077142190", 0x1.b877ap+99f16);
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// verify("1.1754943508e-38", 1.1754943508e-38f16);
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verify("30219.0830078125", 30219.0830078125f16);
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verify("17419.6494140625", 17419.6494140625f16);
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verify("15498.36376953125", 15498.36376953125f16);
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verify("6318.580322265625", 6318.580322265625f16);
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verify("2525.2840576171875", 2525.2840576171875f16);
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verify("1370.9265747070312", 1370.9265747070312f16);
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verify("936.3702087402344", 936.3702087402344f16);
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verify("411.88682556152344", 411.88682556152344f16);
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verify("206.50310516357422", 206.50310516357422f16);
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verify("124.16878890991211", 124.16878890991211f16);
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verify("50.811574935913086", 50.811574935913086f16);
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verify("17.486443519592285", 17.486443519592285f16);
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verify("13.91745138168335", 13.91745138168335f16);
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verify("7.5464513301849365", 0x1.e2f90ep+2f16);
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verify("2.687217116355896", 2.687217116355896f16);
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verify("1.1877630352973938", 0x1.30113ep+0f16);
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verify("0.7622503340244293", 0.7622503340244293f16);
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verify("0.30531780421733856", 0x1.38a53ap-2f16);
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verify("0.21791061013936996", 0x1.be47eap-3f16);
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verify("0.09289376810193062", 0x1.7c7e2ep-4f16);
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verify("0.03706067614257336", 0.03706067614257336f16);
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verify("0.028068351559340954", 0.028068351559340954f16);
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verify("0.012114629615098238", 0x1.8cf8e2p-7f16);
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verify("0.004221370676532388", 0x1.14a6dap-8f16);
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verify("0.002153817447833717", 0.002153817447833717f16);
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verify("0.0015924838953651488", 0x1.a175cap-10f16);
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verify("0.0008602388261351734", 0.0008602388261351734f16);
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verify("0.00036393293703440577", 0x1.7d9c82p-12f16);
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verify("0.00013746770127909258", 0.00013746770127909258f16);
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verify("16407.9462890625", 16407.9462890625f16);
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// verify("1.1754947011469036e-38", 0x1.000006p-126f16);
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// verify("7.0064923216240854e-46", 0x1p-149f16);
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// verify("8388614.5", 8388614.5f16);
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verify("0e9999999999999999999999999999", 0.f16);
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// verify(
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// "4.7019774032891500318749461488889827112746622270883500860350068251e-38",
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// 4.7019774032891500318749461488889827112746622270883500860350068251e-38f16);
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verify(
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"3."
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"141592653589793238462643383279502884197169399375105820974944592307816406"
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"2862089986280348253421170679",
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3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679f16);
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// verify(
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// "2.3509887016445750159374730744444913556373311135441750430175034126e-38",
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// 2.3509887016445750159374730744444913556373311135441750430175034126e-38f16);
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verify("1", 1.f16);
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// verify("7.0060e-46", 0.f16, std::errc::result_out_of_range);
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// verify("3.4028234664e38", 0x1.fffffep+127f16);
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// verify("3.4028234665e38", 0x1.fffffep+127f16);
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// verify("3.4028234666e38", 0x1.fffffep+127f16);
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// verify(
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// "0."
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// "000000000000000000000000000000000000011754943508222875079687365372222456"
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// "778186655567720875215087517062784172594547271728515625",
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// 0.000000000000000000000000000000000000011754943508222875079687365372222456778186655567720875215087517062784172594547271728515625f16);
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// verify(
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// "0."
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// "000000000000000000000000000000000000000000001401298464324817070923729583"
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// "289916131280261941876515771757068283889791082685860601486638188362121582"
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// "03125",
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// 0.00000000000000000000000000000000000000000000140129846432481707092372958328991613128026194187651577175706828388979108268586060148663818836212158203125f16);
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// verify(
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// "0."
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// "000000000000000000000000000000000000023509885615147285834557659820715330"
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// "266457179855179808553659262368500061299303460771170648513361811637878417"
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// "96875",
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// 0.00000000000000000000000000000000000002350988561514728583455765982071533026645717985517980855365926236850006129930346077117064851336181163787841796875f16);
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// verify(
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// "0."
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// "000000000000000000000000000000000000011754942106924410754870294448492873"
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// "488270524287458933338571745305715888704756189042655023513361811637878417"
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// "96875",
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// 0.00000000000000000000000000000000000001175494210692441075487029444849287348827052428745893333857174530571588870475618904265502351336181163787841796875f16);
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}
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#endif
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#ifdef __STDCPP_BFLOAT16_T__
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TEST_CASE("bfloat16.inf") {
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verify("INF", std::numeric_limits<std::bfloat16_t>::infinity());
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verify("-INF", -std::numeric_limits<std::bfloat16_t>::infinity());
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verify("INFINITY", std::numeric_limits<std::bfloat16_t>::infinity());
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verify("-INFINITY", -std::numeric_limits<std::bfloat16_t>::infinity());
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verify("infinity", std::numeric_limits<std::bfloat16_t>::infinity());
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verify("-infinity", -std::numeric_limits<std::bfloat16_t>::infinity());
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verify("inf", std::numeric_limits<std::bfloat16_t>::infinity());
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verify("-inf", -std::numeric_limits<std::bfloat16_t>::infinity());
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verify("1234456789012345678901234567890e9999999999999999999999999999",
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std::numeric_limits<std::bfloat16_t>::infinity(),
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std::errc::result_out_of_range);
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verify("2e3000", std::numeric_limits<std::bfloat16_t>::infinity(),
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std::errc::result_out_of_range);
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verify("3.5028234666e38", std::numeric_limits<std::bfloat16_t>::infinity(),
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std::errc::result_out_of_range);
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}
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TEST_CASE("bfloat16.general") {
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// max
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verify("338953138925153547590470800371487866880", 0x1.fep+127bf16);
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// -max
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verify("-338953138925153547590470800371487866880", -0x1.fep+127bf16);
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// min
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verify(
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"0."
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"000000000000000000000000000000000000011754943508222875079687365372222456"
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"778186655567720875215087517062784172594547271728515625",
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0x1p-126bf16);
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verify("1."
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"175494350822287507968736537222245677818665556772087521508751706278417"
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"2594"
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"547271728515625e-38",
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0x1p-126bf16);
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// denorm_min
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verify("0."
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"000000000000000000000000000000000000000091835496157991211560057541970"
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"4879"
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"435795832466228193376178712270530013483949005603790283203125",
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0x1p-133bf16);
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verify("9."
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"183549615799121156005754197048794357958324662281933761787122705300134"
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"8394"
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"9005603790283203125e-41",
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0x1p-133bf16);
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// -min
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verify(
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"-0."
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"000000000000000000000000000000000000011754943508222875079687365372222456"
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"778186655567720875215087517062784172594547271728515625",
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-0x1p-126bf16);
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verify(
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"-1."
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"175494350822287507968736537222245677818665556772087521508751706278417259"
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"4547271728515625e-38",
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-0x1p-126bf16);
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// -denorm_min
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verify("-0"
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".00000000000000000000000000000000000000009183549615799121156005754197"
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"0487"
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"9435795832466228193376178712270530013483949005603790283203125",
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-0x1p-133bf16);
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verify("-9"
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".18354961579912115600575419704879435795832466228193376178712270530013"
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"4839"
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"49005603790283203125e-41",
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-0x1p-133bf16);
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verify("-1e-999", -0.0bf16, std::errc::result_out_of_range);
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verify_runtime(
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"1."
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"175494350822287507968736537222245677818665556772087521508751706278417"
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"2594547271728515625",
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0x1.2cp+0bf16);
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verify_runtime(append_zeros("1."
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"175494350822287507968736537222245677818665556772"
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"0875215087517062784172594547271728515625",
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655),
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0x1.2cp+0bf16);
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verify_runtime(append_zeros("1."
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"175494350822287507968736537222245677818665556772"
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"0875215087517062784172594547271728515625",
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656),
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0x1.2cp+0bf16);
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verify_runtime(append_zeros("1."
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"175494350822287507968736537222245677818665556772"
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"0875215087517062784172594547271728515625",
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1000),
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0x1.2cp+0bf16);
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verify_runtime(append_zeros("1."
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"175494350822287507968736537222245677818665556772"
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"0875215087517062784172594547271728515625",
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655) +
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std::string("e-38"),
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0x1p-126bf16);
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verify_runtime(append_zeros("1."
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"175494350822287507968736537222245677818665556772"
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"0875215087517062784172594547271728515625",
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656) +
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std::string("e-38"),
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0x1p-126bf16);
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verify_runtime(append_zeros("1."
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"175494350822287507968736537222245677818665556772"
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"0875215087517062784172594547271728515625",
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1000) +
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std::string("e-38"),
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0x1p-126bf16);
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verify("-0", -0.0bf16);
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// verify("1090544144181609348835077142190", 0x1.b877ap+99bf16);
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// verify("1.1754943508e-38", 1.1754943508e-38bf16);
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verify("30219.0830078125", 30219.0830078125bf16);
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verify("16252921.5", 16252921.5bf16);
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verify("5322519.25", 5322519.25bf16);
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verify("3900245.875", 3900245.875bf16);
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verify("1510988.3125", 1510988.3125bf16);
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verify("782262.28125", 782262.28125bf16);
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verify("328381.484375", 328381.484375bf16);
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verify("156782.0703125", 156782.0703125bf16);
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verify("85003.24609375", 85003.24609375bf16);
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verify("17419.6494140625", 17419.6494140625bf16);
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verify("15498.36376953125", 15498.36376953125bf16);
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verify("6318.580322265625", 6318.580322265625bf16);
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verify("2525.2840576171875", 2525.2840576171875bf16);
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verify("1370.9265747070312", 1370.9265747070312bf16);
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verify("936.3702087402344", 936.3702087402344bf16);
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verify("411.88682556152344", 411.88682556152344bf16);
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verify("206.50310516357422", 206.50310516357422bf16);
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verify("124.16878890991211", 124.16878890991211bf16);
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verify("50.811574935913086", 50.811574935913086bf16);
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verify("17.486443519592285", 17.486443519592285bf16);
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verify("13.91745138168335", 13.91745138168335bf16);
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verify("7.5464513301849365", 0x1.e2f90ep+2bf16);
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verify("2.687217116355896", 2.687217116355896bf16);
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verify("1.1877630352973938", 0x1.30113ep+0bf16);
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verify("0.7622503340244293", 0.7622503340244293bf16);
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verify("0.30531780421733856", 0x1.38a53ap-2bf16);
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verify("0.21791061013936996", 0x1.be47eap-3bf16);
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verify("0.09289376810193062", 0x1.7c7e2ep-4bf16);
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verify("0.03706067614257336", 0.03706067614257336bf16);
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verify("0.028068351559340954", 0.028068351559340954bf16);
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verify("0.012114629615098238", 0x1.8cf8e2p-7bf16);
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verify("0.004221370676532388", 0x1.14a6dap-8bf16);
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verify("0.002153817447833717", 0.002153817447833717bf16);
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verify("0.0015924838953651488", 0x1.a175cap-10bf16);
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verify("0.0008602388261351734", 0.0008602388261351734bf16);
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verify("0.00036393293703440577", 0x1.7d9c82p-12bf16);
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verify("0.00013746770127909258", 0.00013746770127909258bf16);
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verify("16407.9462890625", 16407.9462890625bf16);
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// verify("1.1754947011469036e-38", 0x1.000006p-126bf16);
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// verify("7.0064923216240854e-46", 0x1p-149bf16);
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// verify("8388614.5", 8388614.5bf16);
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verify("0e9999999999999999999999999999", 0.bf16);
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// verify(
|
||||
// "4.7019774032891500318749461488889827112746622270883500860350068251e-38",
|
||||
// 4.7019774032891500318749461488889827112746622270883500860350068251e-38bf16);
|
||||
verify(
|
||||
"3."
|
||||
"141592653589793238462643383279502884197169399375105820974944592307816406"
|
||||
"2862089986280348253421170679",
|
||||
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679bf16);
|
||||
// verify(
|
||||
// "2.3509887016445750159374730744444913556373311135441750430175034126e-38",
|
||||
// 2.3509887016445750159374730744444913556373311135441750430175034126e-38bf16);
|
||||
verify("1", 1.bf16);
|
||||
verify("7.0060e-46", 0.bf16, std::errc::result_out_of_range);
|
||||
verify("3.388e+38", 0x1.fep+127bf16);
|
||||
verify("3.389e+38", 0x1.fep+127bf16);
|
||||
verify("3.390e+38", 0x1.fep+127bf16);
|
||||
// verify(
|
||||
// "0."
|
||||
// "000000000000000000000000000000000000011754943508222875079687365372222456"
|
||||
// "778186655567720875215087517062784172594547271728515625",
|
||||
// 0.000000000000000000000000000000000000011754943508222875079687365372222456778186655567720875215087517062784172594547271728515625bf16);
|
||||
// verify(
|
||||
// "0."
|
||||
// "000000000000000000000000000000000000000000001401298464324817070923729583"
|
||||
// "289916131280261941876515771757068283889791082685860601486638188362121582"
|
||||
// "03125",
|
||||
// 0.00000000000000000000000000000000000000000000140129846432481707092372958328991613128026194187651577175706828388979108268586060148663818836212158203125bf16);
|
||||
// verify(
|
||||
// "0."
|
||||
// "000000000000000000000000000000000000023509885615147285834557659820715330"
|
||||
// "266457179855179808553659262368500061299303460771170648513361811637878417"
|
||||
// "96875",
|
||||
// 0.00000000000000000000000000000000000002350988561514728583455765982071533026645717985517980855365926236850006129930346077117064851336181163787841796875bf16);
|
||||
// verify(
|
||||
// "0."
|
||||
// "000000000000000000000000000000000000011754942106924410754870294448492873"
|
||||
// "488270524287458933338571745305715888704756189042655023513361811637878417"
|
||||
// "96875",
|
||||
// 0.00000000000000000000000000000000000001175494210692441075487029444849287348827052428745893333857174530571588870475618904265502351336181163787841796875bf16);
|
||||
}
|
||||
#endif
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user