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Commit | Line | Data |
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136023e0 XL |
1 | use core::num::dec2flt::number::Number; |
2 | use core::num::dec2flt::parse::parse_number; | |
3 | use core::num::dec2flt::{dec2flt, pfe_invalid}; | |
4 | ||
5 | fn new_number(e: i64, m: u64) -> Number { | |
6 | Number { exponent: e, mantissa: m, negative: false, many_digits: false } | |
7 | } | |
e9174d1e SL |
8 | |
9 | #[test] | |
10 | fn missing_pieces() { | |
11 | let permutations = &[".e", "1e", "e4", "e", ".12e", "321.e", "32.12e+", "12.32e-"]; | |
12 | for &s in permutations { | |
136023e0 | 13 | assert_eq!(dec2flt::<f64>(s), Err(pfe_invalid())); |
e9174d1e SL |
14 | } |
15 | } | |
16 | ||
17 | #[test] | |
18 | fn invalid_chars() { | |
19 | let invalid = "r,?<j"; | |
136023e0 | 20 | let error = Err(pfe_invalid()); |
e9174d1e SL |
21 | let valid_strings = &["123", "666.", ".1", "5e1", "7e-3", "0.0e+1"]; |
22 | for c in invalid.chars() { | |
23 | for s in valid_strings { | |
24 | for i in 0..s.len() { | |
25 | let mut input = String::new(); | |
26 | input.push_str(s); | |
27 | input.insert(i, c); | |
136023e0 | 28 | assert!(dec2flt::<f64>(&input) == error, "did not reject invalid {:?}", input); |
e9174d1e SL |
29 | } |
30 | } | |
31 | } | |
32 | } | |
33 | ||
136023e0 | 34 | fn parse_positive(s: &[u8]) -> Option<Number> { |
353b0b11 | 35 | parse_number(s) |
136023e0 XL |
36 | } |
37 | ||
e9174d1e SL |
38 | #[test] |
39 | fn valid() { | |
136023e0 XL |
40 | assert_eq!(parse_positive(b"123.456e789"), Some(new_number(786, 123456))); |
41 | assert_eq!(parse_positive(b"123.456e+789"), Some(new_number(786, 123456))); | |
42 | assert_eq!(parse_positive(b"123.456e-789"), Some(new_number(-792, 123456))); | |
43 | assert_eq!(parse_positive(b".050"), Some(new_number(-3, 50))); | |
44 | assert_eq!(parse_positive(b"999"), Some(new_number(0, 999))); | |
45 | assert_eq!(parse_positive(b"1.e300"), Some(new_number(300, 1))); | |
46 | assert_eq!(parse_positive(b".1e300"), Some(new_number(299, 1))); | |
47 | assert_eq!(parse_positive(b"101e-33"), Some(new_number(-33, 101))); | |
8faf50e0 | 48 | let zeros = "0".repeat(25); |
5e7ed085 | 49 | let s = format!("1.5e{zeros}"); |
136023e0 XL |
50 | assert_eq!(parse_positive(s.as_bytes()), Some(new_number(-1, 15))); |
51 | } | |
52 | ||
53 | macro_rules! assert_float_result_bits_eq { | |
54 | ($bits:literal, $ty:ty, $str:literal) => {{ | |
55 | let p = dec2flt::<$ty>($str); | |
56 | assert_eq!(p.map(|x| x.to_bits()), Ok($bits)); | |
57 | }}; | |
58 | } | |
59 | ||
60 | #[test] | |
61 | fn issue31109() { | |
62 | // Regression test for #31109. | |
63 | // Ensure the test produces a valid float with the expected bit pattern. | |
64 | assert_float_result_bits_eq!( | |
65 | 0x3fd5555555555555, | |
66 | f64, | |
67 | "0.3333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333" | |
68 | ); | |
69 | } | |
70 | ||
71 | #[test] | |
72 | fn issue31407() { | |
73 | // Regression test for #31407. | |
74 | // Ensure the test produces a valid float with the expected bit pattern. | |
75 | assert_float_result_bits_eq!( | |
76 | 0x1752a64e34ba0d3, | |
77 | f64, | |
78 | "1234567890123456789012345678901234567890e-340" | |
79 | ); | |
80 | assert_float_result_bits_eq!( | |
81 | 0xfffffffffffff, | |
82 | f64, | |
83 | "2.225073858507201136057409796709131975934819546351645648023426109724822222021076945516529523908135087914149158913039621106870086438694594645527657207407820621743379988141063267329253552286881372149012981122451451889849057222307285255133155755015914397476397983411801999323962548289017107081850690630666655994938275772572015763062690663332647565300009245888316433037779791869612049497390377829704905051080609940730262937128958950003583799967207254304360284078895771796150945516748243471030702609144621572289880258182545180325707018860872113128079512233426288368622321503775666622503982534335974568884423900265498198385487948292206894721689831099698365846814022854243330660339850886445804001034933970427567186443383770486037861622771738545623065874679014086723327636718749999999999999999999999999999999999999e-308" | |
84 | ); | |
85 | assert_float_result_bits_eq!( | |
86 | 0x10000000000000, | |
87 | f64, | |
88 | "2.22507385850720113605740979670913197593481954635164564802342610972482222202107694551652952390813508791414915891303962110687008643869459464552765720740782062174337998814106326732925355228688137214901298112245145188984905722230728525513315575501591439747639798341180199932396254828901710708185069063066665599493827577257201576306269066333264756530000924588831643303777979186961204949739037782970490505108060994073026293712895895000358379996720725430436028407889577179615094551674824347103070260914462157228988025818254518032570701886087211312807951223342628836862232150377566662250398253433597456888442390026549819838548794829220689472168983109969836584681402285424333066033985088644580400103493397042756718644338377048603786162277173854562306587467901408672332763671875e-308" | |
89 | ); | |
90 | assert_float_result_bits_eq!( | |
91 | 0x10000000000000, | |
92 | f64, | |
93 | "0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000222507385850720138309023271733240406421921598046233183055332741688720443481391819585428315901251102056406733973103581100515243416155346010885601238537771882113077799353200233047961014744258363607192156504694250373420837525080665061665815894872049117996859163964850063590877011830487479978088775374994945158045160505091539985658247081864511353793580499211598108576605199243335211435239014879569960959128889160299264151106346631339366347758651302937176204732563178148566435087212282863764204484681140761391147706280168985324411002416144742161856716615054015428508471675290190316132277889672970737312333408698898317506783884692609277397797285865965494109136909540613646756870239867831529068098461721092462539672851562500000000000000001" | |
94 | ); | |
95 | assert_float_result_bits_eq!( | |
96 | 0x7fefffffffffffff, | |
97 | f64, | |
98 | "179769313486231580793728971405303415079934132710037826936173778980444968292764750946649017977587207096330286416692887910946555547851940402630657488671505820681908902000708383676273854845817711531764475730270069855571366959622842914819860834936475292719074168444365510704342711559699508093042880177904174497791.9999999999999999999999999999999999999999999999999999999999999999999999" | |
99 | ); | |
100 | assert_float_result_bits_eq!(0x0, f64, "2.47032822920623272e-324"); | |
101 | assert_float_result_bits_eq!( | |
102 | 0x8000000, | |
103 | f64, | |
104 | "6.631236871469758276785396630275967243399099947355303144249971758736286630139265439618068200788048744105960420552601852889715006376325666595539603330361800519107591783233358492337208057849499360899425128640718856616503093444922854759159988160304439909868291973931426625698663157749836252274523485312442358651207051292453083278116143932569727918709786004497872322193856150225415211997283078496319412124640111777216148110752815101775295719811974338451936095907419622417538473679495148632480391435931767981122396703443803335529756003353209830071832230689201383015598792184172909927924176339315507402234836120730914783168400715462440053817592702766213559042115986763819482654128770595766806872783349146967171293949598850675682115696218943412532098591327667236328125E-316" | |
105 | ); | |
106 | assert_float_result_bits_eq!( | |
107 | 0x10000, | |
108 | f64, | |
109 | "3.237883913302901289588352412501532174863037669423108059901297049552301970670676565786835742587799557860615776559838283435514391084153169252689190564396459577394618038928365305143463955100356696665629202017331344031730044369360205258345803431471660032699580731300954848363975548690010751530018881758184174569652173110473696022749934638425380623369774736560008997404060967498028389191878963968575439222206416981462690113342524002724385941651051293552601421155333430225237291523843322331326138431477823591142408800030775170625915670728657003151953664260769822494937951845801530895238439819708403389937873241463484205608000027270531106827387907791444918534771598750162812548862768493201518991668028251730299953143924168545708663913273994694463908672332763671875E-319" | |
110 | ); | |
111 | assert_float_result_bits_eq!( | |
112 | 0x800000000100, | |
113 | f64, | |
114 | "6.953355807847677105972805215521891690222119817145950754416205607980030131549636688806115726399441880065386399864028691275539539414652831584795668560082999889551357784961446896042113198284213107935110217162654939802416034676213829409720583759540476786936413816541621287843248433202369209916612249676005573022703244799714622116542188837770376022371172079559125853382801396219552418839469770514904192657627060319372847562301074140442660237844114174497210955449896389180395827191602886654488182452409583981389442783377001505462015745017848754574668342161759496661766020028752888783387074850773192997102997936619876226688096314989645766000479009083731736585750335262099860150896718774401964796827166283225641992040747894382698751809812609536720628966577351093292236328125E-310" | |
115 | ); | |
116 | assert_float_result_bits_eq!( | |
117 | 0x10800, | |
118 | f64, | |
119 | "3.339068557571188581835713701280943911923401916998521771655656997328440314559615318168849149074662609099998113009465566426808170378434065722991659642619467706034884424989741080790766778456332168200464651593995817371782125010668346652995912233993254584461125868481633343674905074271064409763090708017856584019776878812425312008812326260363035474811532236853359905334625575404216060622858633280744301892470300555678734689978476870369853549413277156622170245846166991655321535529623870646888786637528995592800436177901746286272273374471701452991433047257863864601424252024791567368195056077320885329384322332391564645264143400798619665040608077549162173963649264049738362290606875883456826586710961041737908872035803481241600376705491726170293986797332763671875E-319" | |
120 | ); | |
121 | assert_float_result_bits_eq!( | |
122 | 0x0, | |
123 | f64, | |
124 | "2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328124999e-324" | |
125 | ); | |
126 | assert_float_result_bits_eq!( | |
127 | 0x0, | |
128 | f64, | |
129 | "2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328125e-324" | |
130 | ); | |
131 | assert_float_result_bits_eq!( | |
132 | 0x1, | |
133 | f64, | |
134 | "2.4703282292062327208828439643411068618252990130716238221279284125033775363510437593264991818081799618989828234772285886546332835517796989819938739800539093906315035659515570226392290858392449105184435931802849936536152500319370457678249219365623669863658480757001585769269903706311928279558551332927834338409351978015531246597263579574622766465272827220056374006485499977096599470454020828166226237857393450736339007967761930577506740176324673600968951340535537458516661134223766678604162159680461914467291840300530057530849048765391711386591646239524912623653881879636239373280423891018672348497668235089863388587925628302755995657524455507255189313690836254779186948667994968324049705821028513185451396213837722826145437693412532098591327667236328125001e-324" | |
135 | ); | |
136 | assert_float_result_bits_eq!( | |
137 | 0x1, | |
138 | f64, | |
139 | "7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984374999e-324" | |
140 | ); | |
141 | assert_float_result_bits_eq!( | |
142 | 0x2, | |
143 | f64, | |
144 | "7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984375e-324" | |
145 | ); | |
146 | assert_float_result_bits_eq!( | |
147 | 0x2, | |
148 | f64, | |
149 | "7.4109846876186981626485318930233205854758970392148714663837852375101326090531312779794975454245398856969484704316857659638998506553390969459816219401617281718945106978546710679176872575177347315553307795408549809608457500958111373034747658096871009590975442271004757307809711118935784838675653998783503015228055934046593739791790738723868299395818481660169122019456499931289798411362062484498678713572180352209017023903285791732520220528974020802906854021606612375549983402671300035812486479041385743401875520901590172592547146296175134159774938718574737870961645638908718119841271673056017045493004705269590165763776884908267986972573366521765567941072508764337560846003984904972149117463085539556354188641513168478436313080237596295773983001708984375001e-324" | |
150 | ); | |
151 | assert_float_result_bits_eq!( | |
152 | 0x6c9a143590c14, | |
153 | f64, | |
154 | "94393431193180696942841837085033647913224148539854e-358" | |
155 | ); | |
156 | assert_float_result_bits_eq!( | |
157 | 0x7802665fd9600, | |
158 | f64, | |
159 | "104308485241983990666713401708072175773165034278685682646111762292409330928739751702404658197872319129036519947435319418387839758990478549477777586673075945844895981012024387992135617064532141489278815239849108105951619997829153633535314849999674266169258928940692239684771590065027025835804863585454872499320500023126142553932654370362024104462255244034053203998964360882487378334860197725139151265590832887433736189468858614521708567646743455601905935595381852723723645799866672558576993978025033590728687206296379801363024094048327273913079612469982585674824156000783167963081616214710691759864332339239688734656548790656486646106983450809073750535624894296242072010195710276073042036425579852459556183541199012652571123898996574563824424330960027873516082763671875e-1075" | |
160 | ); | |
161 | } | |
162 | ||
163 | #[test] | |
164 | fn many_digits() { | |
165 | // Check large numbers of digits to ensure we have cases where significant | |
166 | // digits (above Decimal::MAX_DIGITS) occurs. | |
167 | assert_float_result_bits_eq!( | |
168 | 0x7ffffe, | |
169 | f32, | |
170 | "1.175494140627517859246175898662808184331245864732796240031385942718174675986064769972472277004271745681762695312500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e-38" | |
171 | ); | |
172 | assert_float_result_bits_eq!( | |
173 | 0x7ffffe, | |
174 | f32, | |
175 | "1.175494140627517859246175898662808184331245864732796240031385942718174675986064769972472277004271745681762695312500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e-38" | |
176 | ); | |
e9174d1e | 177 | } |