/* * Copyright (c) 2020, the SerenityOS developers. * * SPDX-License-Identifier: BSD-2-Clause */ #include #include static double parse_complete_double(StringView view) { char const* start = view.characters_without_null_termination(); return parse_floating_point_completely(start, start + view.length()).release_value(); } static float parse_complete_float(StringView view) { char const* start = view.characters_without_null_termination(); return parse_floating_point_completely(start, start + view.length()).release_value(); } TEST_CASE(simple_cases) { #define DOES_PARSE_DOUBLE_LIKE_CPP(value) \ do { \ EXPECT_EQ(static_cast(value), parse_complete_double(#value##sv)); \ EXPECT_EQ(-static_cast(value), parse_complete_double("-" #value##sv)); \ } while (false) #define DOES_PARSE_FLOAT_LIKE_CPP(value) \ do { \ float val = parse_complete_float(#value##sv); \ EXPECT_EQ(static_cast(value##f), val); \ EXPECT_EQ(-static_cast(value##f), parse_complete_float("-" #value##sv)); \ } while (false) #define DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(value) \ DOES_PARSE_DOUBLE_LIKE_CPP(value); 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DOES_PARSE_DOUBLE_LIKE_CPP(0.45689544977495495495197116546843576574949654e81); DOES_PARSE_DOUBLE_LIKE_CPP(0.45689544977495495495197116546843576574949654e-81); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.2057594037927933e+8); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(234532.3426362); DOES_PARSE_DOUBLE_LIKE_CPP(860228122.6654514319E+90); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009195); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009200); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009199); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009198); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009208); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009204); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009200); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009201); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009202); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009203); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009205); DOES_PARSE_DOUBLE_LIKE_CPP(69294956446009206); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.000000000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.0000000000000001); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(69294956446009204.00000000000000001); 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DOES_PARSE_DOUBLE_LIKE_CPP(1.8607245283054342363818436991534856973992070520151142825984000000e+58); DOES_PARSE_DOUBLE_LIKE_CPP(1.9189205311132686907264385602245237137907390376574976000000000000e+52); DOES_PARSE_DOUBLE_LIKE_CPP(2.8184483231688951563253238886553506793085187889855201280000000000e+54); DOES_PARSE_DOUBLE_LIKE_CPP(1.7664960224650106892054063261344555646357024359107788800000000000e+53); DOES_PARSE_DOUBLE_LIKE_CPP(2.1470977154320536489471030463761883783915110400000000000000000000e+45); DOES_PARSE_DOUBLE_LIKE_CPP(4.4900312744003159009338275160799498340862630046359789166919680000e+61); DOES_PARSE_DOUBLE_LIKE_CPP(2.2222222222223e-322); DOES_PARSE_DOUBLE_LIKE_CPP(860228122.6654514319E+90); DOES_PARSE_DOUBLE_LIKE_CPP(4.9406564584124653e-324); DOES_PARSE_DOUBLE_LIKE_CPP(4.9406564584124654e-324); DOES_PARSE_DOUBLE_LIKE_CPP(2.2250738585072009e-308); DOES_PARSE_DOUBLE_LIKE_CPP(2.2250738585072014e-308); DOES_PARSE_DOUBLE_LIKE_CPP(1.7976931348623157e308); DOES_PARSE_DOUBLE_LIKE_CPP(1.7976931348623158e308); 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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1.17549414062751785924617589866280818433124586473279624003138594271817467598606476997247227700427174568176269531250000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e-38); DOES_PARSE_DOUBLE_LIKE_CPP(179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.); 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DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.2057594037927933e+16); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.3177701707893310e+15); DOES_PARSE_DOUBLE_LIKE_CPP(4.2523296908380055e94); DOES_PARSE_DOUBLE_LIKE_CPP(4.2523296908380052e94); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(6865415254.161212); DOES_PARSE_DOUBLE_LIKE_CPP(4.9406564584124654416987984e-324); DOES_PARSE_DOUBLE_LIKE_CPP(4.94065645841246544177987491e-324); DOES_PARSE_DOUBLE_LIKE_CPP(1.4821969375237396325297063786046641170951794078429742932767570475020265218106262555958995090849079771393896940863371531927799701310678193891963243880323456343789021395709342135835374515035469463110661559081709961921691500191622274606949531619374201918195088454200951461561942223787156967735130799756700603045611186809318747958358147744773659879163696332033824403891299986257959682272412496899735742714436070441803404780657158346504044105794804160581370804321322475109996680534260007162497295808277148680375104180318034518509429259235026831954987743714947574192329127781743623968254334611203409098600941053918033152755376981653597394514673304353113588214501752867512169200796980994429823492617107911270837728302633695687262616047519259154796600341796875e-323); 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DOES_PARSE_DOUBLE_LIKE_CPP(0000000000000000000000000000.000000000014821969375237396325297063786046641170951794078429742932767570475020265218106262555958995090849079771393896940863371531927799701310678193891963243880323456343789021395709342135835374515035469463110661559081709961921691500191622274606949531619374201918195088454200951461561942223787156967735130799756700603045611186809318747958358147744773659879163696332033824403891299986257959682272412496899735742714436070441803404780657158346504044105794804160581370804321322475109996680534260007162497295808277148680375104180318034518509429259235026831954987743714947574192329127781743623968254334611203409098600941053918033152755376981653597394514673304353113588214501752867512169200796980994429823492617107911270837728302633695687262616047519259154796600341796875e-312); DOES_PARSE_DOUBLE_LIKE_CPP(6.422853395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323); DOES_PARSE_DOUBLE_LIKE_CPP(6.522853395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323); DOES_PARSE_DOUBLE_LIKE_CPP(7.522853395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323); DOES_PARSE_DOUBLE_LIKE_CPP(7.5228498395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323); DOES_PARSE_DOUBLE_LIKE_CPP(0.5228498395936205074295394307286877840745777433986221937532613872508781594512713774248897872701267900937355341040794330502046537234627217353184072348140164415641909271474048258861995623182036767347953342268740983499399650083036318996344797035062154164551204996820412300010174963641101352685223346561236927986431514284038124115288530689401919280970935077214657241686229994045115862318045415323218821842922297191448142071618101950151752445844415136251927e-323); // actual interesting (non 19+ digit) failures from current strtod' DOES_PARSE_DOUBLE_LIKE_CPP(1e126); DOES_PARSE_DOUBLE_LIKE_CPP(1e210); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(358416272e-33); // FIXME: These are different in 32 bit, since that will be removed some time (soon?) // we can remove this guard at that point. #if not defined(__serenity__) || not ARCH(I386) DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(89255e-22); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8925.5e-21); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8.9255e-18); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8925500e-24); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(89256e-22); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(89254e-22); #endif DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(3.518437208883201171875e13); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(62.5364939768271845828); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8.10109172351e-10); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1.50000000000000011102230246251565404236316680908203125); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740991.4999999999999999999999999999999995); DOES_PARSE_DOUBLE_LIKE_CPP(7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984375001e-324); DOES_PARSE_DOUBLE_LIKE_CPP(7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984375e-324); DOES_PARSE_DOUBLE_LIKE_CPP(7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984374999e-324); DOES_PARSE_DOUBLE_LIKE_CPP(2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328125001e-324); DOES_PARSE_DOUBLE_LIKE_CPP(2.22507385850720138309e-308); DOES_PARSE_DOUBLE_LIKE_CPP(1e55); DOES_PARSE_DOUBLE_LIKE_CPP(1e300); DOES_PARSE_DOUBLE_LIKE_CPP(1e301); DOES_PARSE_DOUBLE_LIKE_CPP(1e302); DOES_PARSE_DOUBLE_LIKE_CPP(1e303); DOES_PARSE_DOUBLE_LIKE_CPP(1e304); DOES_PARSE_DOUBLE_LIKE_CPP(1e305); DOES_PARSE_DOUBLE_LIKE_CPP(1e299); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(3.4028235E38); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(4e31); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9007199254740991.); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.038531E-26); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(46116538.); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(20040229.); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(9771305410219737088.); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1146.); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(7.0064923216240854e-46); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(1.1877630352973938); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(2.1665680640000002384185791015625e9); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(8.589934335999999523162841796875e+09); DOES_PARSE_FLOAT_AND_DOUBLE_LIKE_CPP(0.09289376810193062); #define DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(value) \ do { \ EXPECT_EQ(static_cast(value##.), parse_complete_double(#value##sv)); \ EXPECT_EQ(-static_cast(value##.), parse_complete_double("-" #value##sv)); \ } while (false) DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(0); DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(1); DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(2); DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(20); DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(200); DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(234); DOES_PARSE_INT_LIKE_VALUE_LIKE_CPP(8419841); EXPECT_EQ(67677557565221539913., parse_complete_double("67677557565221539913"sv)); EXPECT_EQ(0., parse_complete_double("2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328125e-324"sv)); EXPECT_EQ(0., parse_complete_double("2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328124999e-324"sv)); #define EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(expected_val, str) \ EXPECT_EQ(bit_cast(expected_val), bit_cast(parse_complete_double(str##sv))); EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(0., "1e-324"); EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(-0., "-1e-324"); EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(.09289376810193062, "+.09289376810193062"); EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(-.09289376810193062, "-.09289376810193062"); EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(0., "+.0e10"); EXPECT_TO_PARSE_TO_VALUE_EQUAL_TO(-0., "-.0e10"); #define EXPECT_TO_PARSE_TO_INFINITY(str) \ EXPECT_EQ(__builtin_huge_val(), parse_complete_double(str##sv)); \ EXPECT_EQ(__builtin_huge_val(), parse_complete_double("+" str##sv)); \ EXPECT_EQ(-__builtin_huge_val(), parse_complete_double("-" str##sv)); \ EXPECT_EQ(static_cast(__builtin_huge_valf()), parse_complete_float(str##sv)); \ EXPECT_EQ(static_cast(__builtin_huge_valf()), parse_complete_float("+" str##sv)); \ EXPECT_EQ(static_cast(-__builtin_huge_valf()), parse_complete_float("-" str##sv)) EXPECT_TO_PARSE_TO_INFINITY("123.456e789"); EXPECT_TO_PARSE_TO_INFINITY("123456.456789e789"); EXPECT_TO_PARSE_TO_INFINITY("1438456663141390273526118207642235581183227845246331231162636653790368152091394196930365828634687637948157940776599182791387527135353034738357134110310609455693900824193549772792016543182680519740580354365467985440183598701312257624545562331397018329928613196125590274187720073914818062530830316533158098624984118889298281371812288789537310599037529113415438738954894752124724983067241108764488346454376699018673078404751121414804937224240805993123816932326223683090770561597570457793932985826162604255884529134126396282202126526253389383421806727954588525596114379801269094096329805054803089299736996870951258573010877404407451953846698609198213926882692078557033228265259305481198526059813164469187586693257335779522020407645498684263339921905227556616698129967412891282231685504660671277927198290009824680186319750978665734576683784255802269708917361719466043175201158849097881370477111850171579869056016061666173029059588433776015644439705050377554277696143928278093453792803846252715966016733222646442382892123940052441346822429721593884378212558701004356924243030059517489346646577724622498919752597382095222500311124181823512251071356181769376577651390028297796156208815375089159128394945710515861334486267101797497111125909272505194792870889617179758703442608016143343262159998149700606597792535574457560429226974273443630323818747730771316763398572110874959981923732463076884528677392654150010269822239401993427482376513231389212353583573566376915572650916866553612366187378959554983566712767093372906030188976220169058025354973622211666504549316958271880975697143546564469806791358707318873075708383345004090151974068325838177531266954177406661392229801349994695941509935655355652985723782153570084089560139142231.738475042362596875449154552392299548947138162081694168675340677843807613129780449323363759027012972466987370921816813162658754726545121090545507240267000456594786540949605260722461937870630634874991729398208026467698131898691830012167897399682179601734569071423681e-733"); EXPECT_TO_PARSE_TO_INFINITY("3e182947912346759234"); EXPECT_TO_PARSE_TO_INFINITY("3e70000000000000"); EXPECT_TO_PARSE_TO_INFINITY("3e70000000000"); EXPECT_TO_PARSE_TO_INFINITY("3e70000000"); EXPECT_TO_PARSE_TO_INFINITY("1e681"); EXPECT_TO_PARSE_TO_INFINITY("7e312"); EXPECT_TO_PARSE_TO_INFINITY("184467440737095516151234567890e2147483639"); } TEST_CASE(partial_parse_stops_at_right_spot) { #define EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS(string_value, double_value, chars_parsed) \ do { \ StringView view = string_value##sv; \ char const* start = view.characters_without_null_termination(); \ auto result = parse_first_floating_point(start, start + view.length()); \ EXPECT(result.error == AK::FloatingPointError::None); \ EXPECT_EQ(bit_cast(result.value), bit_cast(static_cast(double_value))); \ EXPECT_EQ(result.end_ptr - start, chars_parsed); \ } while (false) EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0x", 0., 1); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e", 0., 1); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e+", 0., 1); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1", 0., 3); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0beef", 0., 1); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0p123", 0., 1); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1", 0., 3); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1abc", 0., 3); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1e1", 0., 3); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e1+", 0., 3); EXPECT_PARSE_TO_VALUE_AND_CONSUME_CHARS("0e-+1", 0., 1); } TEST_CASE(invalid_parse) { #define EXPECT_PARSE_TO_FAIL(string_value) \ do { \ StringView view = string_value##sv; \ char const* start = view.characters_without_null_termination(); \ auto result = parse_first_floating_point(start, start + view.length()); \ EXPECT(result.error == AK::FloatingPointError::NoOrInvalidInput); \ } while (false) EXPECT_PARSE_TO_FAIL(""); EXPECT_PARSE_TO_FAIL("e"); EXPECT_PARSE_TO_FAIL("."); EXPECT_PARSE_TO_FAIL("-."); EXPECT_PARSE_TO_FAIL("+."); EXPECT_PARSE_TO_FAIL(".e"); EXPECT_PARSE_TO_FAIL("-.e"); EXPECT_PARSE_TO_FAIL("+.e"); EXPECT_PARSE_TO_FAIL(".e1"); EXPECT_PARSE_TO_FAIL("-.e1"); EXPECT_PARSE_TO_FAIL("+.e1"); EXPECT_PARSE_TO_FAIL("++2"); EXPECT_PARSE_TO_FAIL("++1"); EXPECT_PARSE_TO_FAIL("++0"); EXPECT_PARSE_TO_FAIL("++2e1"); EXPECT_PARSE_TO_FAIL("++1e1"); EXPECT_PARSE_TO_FAIL("++0e1"); #define EXPECT_MULTI_SIGNS_TO_FAIL(base_string) \ EXPECT_PARSE_TO_FAIL("++" base_string); \ EXPECT_PARSE_TO_FAIL("--" base_string); \ EXPECT_PARSE_TO_FAIL("+-" base_string); \ EXPECT_PARSE_TO_FAIL("-+" base_string) EXPECT_MULTI_SIGNS_TO_FAIL("1"); EXPECT_MULTI_SIGNS_TO_FAIL("1."); EXPECT_MULTI_SIGNS_TO_FAIL("1e1"); EXPECT_MULTI_SIGNS_TO_FAIL("1.e1"); EXPECT_MULTI_SIGNS_TO_FAIL("1.0e1"); EXPECT_MULTI_SIGNS_TO_FAIL("1.0e+1"); EXPECT_MULTI_SIGNS_TO_FAIL("1.0e-1"); } TEST_CASE(detect_out_of_range_values) { #define EXPECT_PARSE_TO_HAVE_ERROR(string_value, error_value) \ do { \ StringView view = string_value##sv; \ char const* start = view.characters_without_null_termination(); \ auto result = parse_first_floating_point(start, start + view.length()); \ EXPECT(result.error == error_value); \ EXPECT(result.end_ptr == start + view.length()); \ } while (false) EXPECT_PARSE_TO_HAVE_ERROR("10e-10000", AK::FloatingPointError::RoundedDownToZero); EXPECT_PARSE_TO_HAVE_ERROR("-10e-10000", AK::FloatingPointError::RoundedDownToZero); EXPECT_PARSE_TO_HAVE_ERROR("10e10000", AK::FloatingPointError::OutOfRange); EXPECT_PARSE_TO_HAVE_ERROR("-10e10000", AK::FloatingPointError::OutOfRange); } static bool parse_completely_passes(StringView view) { char const* start = view.characters_without_null_termination(); return parse_floating_point_completely(start, start + view.length()).has_value(); } TEST_CASE(parse_completely_must_be_just_floating_point) { #define EXPECT_PARSE_COMPLETELY_TO_FAIL(value) \ EXPECT(!parse_completely_passes(value##sv)) EXPECT_PARSE_COMPLETELY_TO_FAIL(""); EXPECT_PARSE_COMPLETELY_TO_FAIL("-"); EXPECT_PARSE_COMPLETELY_TO_FAIL("+"); EXPECT_PARSE_COMPLETELY_TO_FAIL("++1"); EXPECT_PARSE_COMPLETELY_TO_FAIL("+-1"); EXPECT_PARSE_COMPLETELY_TO_FAIL("-+1"); EXPECT_PARSE_COMPLETELY_TO_FAIL("--1"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1 "); EXPECT_PARSE_COMPLETELY_TO_FAIL("1. "); EXPECT_PARSE_COMPLETELY_TO_FAIL("1e "); EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e "); EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123 "); EXPECT_PARSE_COMPLETELY_TO_FAIL("-1 "); EXPECT_PARSE_COMPLETELY_TO_FAIL("-1. "); EXPECT_PARSE_COMPLETELY_TO_FAIL("-1e "); EXPECT_PARSE_COMPLETELY_TO_FAIL("-1.e "); EXPECT_PARSE_COMPLETELY_TO_FAIL("-1.e123 "); EXPECT_PARSE_COMPLETELY_TO_FAIL("1A"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1.C"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1e*"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e("); EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123]"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123&"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1.e123 "); EXPECT_PARSE_COMPLETELY_TO_FAIL(":1234567890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1:234567890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("12:34567890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("123:4567890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1234:567890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("12345:67890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("123456:7890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567:890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("12345678:90"); EXPECT_PARSE_COMPLETELY_TO_FAIL("123456789:0"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567890:"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1;234567890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567;890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1=234567890"); EXPECT_PARSE_COMPLETELY_TO_FAIL("1234567=890"); } static double newhex(char const* view) { auto value = parse_first_hexfloat_until_zero_character(view); VERIFY(value.error == AK::FloatingPointError::None); return value.value; } static float newhexf(char const* view) { auto value = parse_first_hexfloat_until_zero_character(view); VERIFY(value.error == AK::FloatingPointError::None); return value.value; } TEST_CASE(hexfloat) { #define DOES_PARSE_HEX_DOUBLE_LIKE_CPP(value) \ do { \ EXPECT_EQ(static_cast(value), newhex(#value)); \ EXPECT_EQ(-static_cast(value), newhex("-" #value)); \ } while (false) #define DOES_PARSE_HEX_FLOAT_LIKE_CPP(value) \ do { \ EXPECT_EQ(static_cast(value##f), newhexf(#value)); \ EXPECT_EQ(-static_cast(value##f), newhexf("-" #value)); \ } while (false) #define DOES_PARSE_HEX_FLOAT_AND_DOUBLE_LIKE_CPP(value) \ DOES_PARSE_HEX_DOUBLE_LIKE_CPP(value); \ DOES_PARSE_HEX_FLOAT_LIKE_CPP(value) DOES_PARSE_HEX_FLOAT_AND_DOUBLE_LIKE_CPP(0x123456789ABCDEFp0); 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DOES_PARSE_HEX_FLOAT_AND_DOUBLE_LIKE_CPP(0x11.p2); DOES_PARSE_HEX_FLOAT_AND_DOUBLE_LIKE_CPP(0x11.p-2); DOES_PARSE_HEX_FLOAT_AND_DOUBLE_LIKE_CPP(0x11.p-0); } TEST_CASE(invalid_hex_floats) { #define EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS(string_value, double_value, chars_parsed) \ do { \ char const* c_str = string_value; \ auto result = parse_first_hexfloat_until_zero_character(c_str); \ EXPECT(result.error == AK::FloatingPointError::None); \ EXPECT_EQ(bit_cast(result.value), bit_cast(static_cast(double_value))); \ EXPECT_EQ(result.end_ptr - c_str, chars_parsed); \ } while (false) EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS("0xab.cdpef", 0xab.cdp0, 7); EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS("0xab.cdPef", 0xab.cdp0, 7); EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS("0xab.cdPEf", 0xab.cdp0, 7); EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS("0xab.cdPEF", 0xab.cdp0, 7); EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS("0xAB.cdPEF", 0xab.cdp0, 7); EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS("0xABCDPEF", 0xabcdp0, 6); EXPECT_HEX_PARSE_TO_VALUE_AND_CONSUME_CHARS("0xCAPE", 0xCAp0, 4); }