ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? K]­ÅàPl@s_ p:°¬ZR”´›JC[CS.h‹ƒïËœ«Æ]–÷ó‚wR×k7X‰k›‘´ù¦=¡«‰¨¨Â')—71ó’c‡Ðúµ `é.{§p¹ój\Ž{1h{o±Ý=áUÊïGÖŒõ–-BÄm+AZX¶¡ ïHðæ¥JmÙ;…ä¡Ÿˆ¦ ° äšiÉg«$üMk5¤L“’çÊvïâï ,=f“"íἊ5ô¬x6{ɏžID0e¸vçmi'︧ºð9$ò¹÷*£’9ÿ ²TÔ…×>JV¥}Œ}$p[bÔ®*[jzS*8 ”·T›Í–ñUîƒwo$áè=LT™ç—~ô·¤ÈÚ$榍q‰„+´kFm)ž‹©i–ËqÞŠ‰à¶ü( ‚•§ •°ò·‡#5ª•µÊ﯅¡X¨šÁ*F#TXJÊ ušJVÍ&=iÄs1‚3•'fý§5Ñ<=[íÞ­ PÚ;ѱÌ_~Ä££8rÞ ²w;’hDT°>ÈG¬8Á²ÚzŽ®ò®qZcqJêäÞ-ö[ܘbň±çb“Š¶31²n×iƒðÕ;1¶þÉ ªX‰,ßqÏ$>•î íZ¥Z 1{ç൵+ƒÕµ¥°T$§K]á»Ûï*·¤tMI’ÂZbŽÕiÒ˜}bÓ0£ª5›¨ [5Ž^ÝœWøÂÝh° ¢OWun£¤5 a2Z.G2³YL]jåtì”ä ÁÓ‘%"©<ÔúÊ°sº UZvä‡ÄiÆÒM .÷V·™ø#kèýiíÌ–ª)µT[)BˆõÑ xB¾B€ÖT¨.¥~ð@VĶr#¸ü*åZNDŽH;âi ],©£öØpù(šºãö¼T.uCê•4@ÿ GÕÛ)Cx›®0ø#:ÏðFÒbR\(€€Ä®fã4Þ‰Fä¯HXƒÅ,†öEÑÔÜ]Öv²?tLÃvBY£ú6Êu5ÅAQ³1‘’¬x–HŒÐ‡ ^ ¸KwJôÖŽ5×CÚ¨vÜ«/B0$×k°=ðbÇ(Ï)w±A†Á† 11Í=èQšµ626ŒÜ/`G«µ<}—-Ö7KEHÈÉðóȤmݱû±·ø«Snmá=“ä«šmݱŸ¡¶~ó·“äUóJæúòB|E LêŽy´jDÔ$G¢þÐñ7óR8ýÒ…Ç› WVe#·Ÿ p·Fx~•ݤF÷0Èÿ K¯æS<6’¡WШ; ´ÿ ¥Êø\Òuî†åÝ–VNœkÒ7oòX¨Á­Ø÷FÎÑä±g÷ÿ M~Çî=p,X´ ÝÌÚÅ‹’ÃjÖ.ØöÏñ qïQ¤ÓZE†° =6·]܈ s¸>v•Ž^Ý\wq9r‰Î\¸¡kURÒ$­*‹Nq?Þª*!sŠÆ:TU_u±T+øX¡ ®¹¡,ÄâÃBTsÜ$Ø›4m椴zÜK]’’›Pƒ @€#â˜`é¹=I‡fiV•Ôî“nRm+µFPOhÍ0B£ €+¬5c v•:P'ÒyÎ ‰V~‚Ó†ÖuókDoh$å\*ö%Ю=£«…aȼ½÷Û.-½VŒŠ¼'lyî±1¬3ó#ÞE¿ÔS¤gV£m›=§\û"—WU¤ÚǼÿ ÂnÁGŒÃ ‚õN D³õNÚíŒÕ;HôyÄÈ©P¹Ä{:?R‘Ô¨âF÷ø£bÅó® JS|‚R÷ivýáâ€Æé¡è³´IئÑT!§˜•Øª‚¬â@q€wnïCWÄ@JU€ê¯m6]Ï:£âx'+ÒðXvÓ¦Úm=–´7œ $ì“B£~p%ÕŸUþ« N@¼üï~w˜ñø5®—'Ôe»¤5ã//€ž~‰Tþ›Å7•#¤× Íö pÄ$ùeåì*«ÓŠEØWEÈsßg ¦ûvžSsLpºÊW–âµEWöˬH; ™!CYõZ ÃÄf æ#1W. \uWâ\,\Çf j’<qTbên›Î[vxx£ë 'ö¨1›˜ÀM¼Pÿ H)ƒêêŒA7s,|F“ 꺸k³9Ìö*ç®;Ö!Ö$Eiž•¹ÒÚ†ýóéÝû¾ÕS®ó$’NÝäŸz¤5r¦ãÄÃD÷Üø!°ø‡Ô&@m™Ì^Ãä­d q5Lnÿ N;.6½·N|#ä"1Nƒx“ã<3('&ñßt  ~ªu”1Tb㫨9ê–›–bìd$ߣ=#ÕãÒmU¯eí$EFù5ýYô櫨æ왍Ǘ±ssM]·á¿0ÕåJRÓªîiƒ+O58ÖñªŠÒx" \µâá¨i’¤i —Ö ” M+M¤ë9‚‰A¦°Qõ¾ßøK~¼Ã‘g…Ö´~÷Ï[3GUœÒ½#…kàÔ®Ò”‰³·dWV‰IP‰Ú8u¹”E ÖqLj¾êÕCBš{A^Âß;–¨`¯¬ìö ˼ ×tìø.tƐm*n¨y4o&Àx¥n¦×î‡aupáÛj8¿m›è¶ã!o½;ß0y^ý×^EÑ¿ÒjzŒ­)vÚÑnÄL …^ªô× ‡—‚3k Îý­hï]içå–îÏ*÷ñþ»Ô CÒjøjÍznˆ´ ¹#b'Fô‹ ‰v¥'’à'T´ƒHýÍ%M‰ ƒ&ÆÇŒï1 ‘ –Þ ‰i¬s žR-Ÿ kŠ¬á¬7:þ 0ŒÅÒÕ/aÙ¬ÃÝ#Úøœ ©aiVc‰. ¹¦ãµ” ›Yg¦›ÆÎýº°f³7ƒhá·¸­}&D9¡ÂsÉÙÞèŠõØàC™¨ñbFC|´Ü(ŸƒÚÒ-%»'a Ì¿)ËÇn¿úÿ ÞŽX…4ÊÅH^ôΑí@ù¹Eh¶“L8Çjù ¼ÎåVªóR©Ï5uà V4lZß®=€xÖŸ–ÑÈ ÷”¨°¾__yM1tÉ?uÆþIkÄgæ@þ[¢†°XÃJ£j·:nkÅ¢u ‘}âGzö­/IµèŠ¬¼48q¦F°ŽR¼=ûì{´¯RýicS ÕÛ íNtÍÙï£,w4rêì®»~x(©Uñ§#Ñ&œÕ¤>ÎåÍÓ9’Ö{9eV­[Öjâ²ãu]˜å2›qÑšÕJç0€sÄ|Êëè0튔bÁ>“{×_F`Ø©ºê:µä,v¤ðfc1±"«ÔÍän1#=· Âøv~H½ÐßA¾¿Ü€Óš]Õ; I¾÷ç‚Qi†î¹9ywÔKG˜áñ zQY—§ÃÕZ07§X‚ Áh;ÁM)iÌCH-¯T‘ë|A0{Ò½LÚ–TâÖkÜ’dÀ“rmm»”جPF³ÖcbE§T€ÒxKºû’Ó®7±²(\4ŽÃ¸Uu@j™yĵ;³µ!Á¢b.W¤=mõ´êµK k ¸K^ÜÛ#p*Ü14qkZç5ïë †°5Ï%ÍÛ<Õ¤×Ô¥ê†C Õ´¼ú$ƒÖ“”]Ù¬qÞÚ[4©ý!ûÏ—Áb쳐XµA¬â~`›Çr¸8ìùÝ䫦<>ä÷«?xs´ÇÑ /á;¹øüÊÈÙà{"@Žïzâ¬[âß‚ U_<ÇŸ½4èN˜ú61®qŠu ¦þF£»äJ_ˆÙÎ~ ÞAã–Ý„Ï—rŠD;xTž‘ô`É«…suãO`?³à™ô Lý#Íc5öoæØ‚y´´÷«ZR§<&JÇ+éâô´€i!Àˆ0æAoàðLèÖ-2ŸõW.’t^–(KÁmHµV@xÜÇy®Ñø­â^:Ú3w· 7½¹°ñ¸â¹®:',«Mœ—n­Á+Ãbš LÈ‘ÄnRÓÅœ%¦²‰¨ùQ:¤f‚ "PÕtô¸…cæl…&˜Ú˜Ôkv‹ž+vŠ,=¢v­6—Xy*¥t£«<™:“aîϲ=¦6rO]XI¿Œ÷¤zÚ­›¶ 6÷”w\d ü~v®ˆÌk«^m<ÿ ¢‰Õ\)ùºŽ;… lîÙÅEŠ®cѾ@vnMÏ,¼“ñ•ŽBxðÃzãÇç%3ˆ"}Ù•Åî> BÉú;Ò]V+P˜F_´ßé> Øše|ï‡ÄOmFæÇ ãqÞ$/xÐx­z`ï9"œÜij‚!7.\Td…9M‡•iŽ‹¾‘50ÞŽn¥ß4ÉôO ¹*í^QêËÜÇÌ8=Ž§s‰'ÂëÙ«á%Pú[O †ÅP¯VsŽ°.‰,kc¶ ¬A9n˜XÎ-ÞšN["¹QÕ‰ƒMýÁߺXJæÍaLj¾×Ãmã¾ãÚ uñÒþåQô¦¥ /ÄUx:‚ÍÜ’ Đ©ØÝ3V¨‰ÕnÐ6ó*óúK­«…c ¯U òhsý­jóÔj#,ímŒRµ«lbïUTŒÑ8†Ä0œÏr`ð¡¬É Ї ë"À² ™ 6¥ f¶ ¢ÚoܱԷ-<Àî)†a¶ž'Ú»¨TXqØæ¶÷YÄHy˜9ÈIW­YÀuMFë ºÏ’AqÌ4·/Ú †ô'i$øä­=Ä Ý|öK×40è|È6p‘0§)o¥ctî§H+CA-“ xØ|ÐXŠç l8íºð3Ø:³¤¬KX¯UÿÙ // run // Copyright 2010 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Semi-exhaustive test for the append predeclared function. package main import ( "fmt" "reflect" ) func verify(name string, result, expected interface{}) { if !reflect.DeepEqual(result, expected) { panic(name) } } func main() { for _, t := range tests { verify(t.name, t.result, t.expected) } verifyStruct() verifyInterface() verifyType() } var ( zero int = 0 one int = 1 ) var tests = []struct { name string result, expected interface{} }{ {"bool a", append([]bool{}), []bool{}}, {"bool b", append([]bool{}, true), []bool{true}}, {"bool c", append([]bool{}, true, false, true, true), []bool{true, false, true, true}}, {"bool d", append([]bool{true, false, true}), []bool{true, false, true}}, {"bool e", append([]bool{true, false, true}, false), []bool{true, false, true, false}}, {"bool f", append([]bool{true, false, true}, false, false, false), []bool{true, false, true, false, false, false}}, {"bool g", append([]bool{}, []bool{true}...), []bool{true}}, {"bool h", append([]bool{}, []bool{true, false, true, false}...), []bool{true, false, true, false}}, {"bool i", append([]bool{true, false, true}, []bool{true}...), []bool{true, false, true, true}}, {"bool j", append([]bool{true, false, true}, []bool{true, true, true}...), []bool{true, false, true, true, true, true}}, {"byte a", append([]byte{}), []byte{}}, {"byte b", append([]byte{}, 0), []byte{0}}, {"byte c", append([]byte{}, 0, 1, 2, 3), []byte{0, 1, 2, 3}}, {"byte d", append([]byte{0, 1, 2}), []byte{0, 1, 2}}, {"byte e", append([]byte{0, 1, 2}, 3), []byte{0, 1, 2, 3}}, {"byte f", append([]byte{0, 1, 2}, 3, 4, 5), []byte{0, 1, 2, 3, 4, 5}}, {"byte g", append([]byte{}, []byte{0}...), []byte{0}}, {"byte h", append([]byte{}, []byte{0, 1, 2, 3}...), []byte{0, 1, 2, 3}}, {"byte i", append([]byte{0, 1, 2}, []byte{3}...), []byte{0, 1, 2, 3}}, {"byte j", append([]byte{0, 1, 2}, []byte{3, 4, 5}...), []byte{0, 1, 2, 3, 4, 5}}, {"bytestr a", append([]byte{}, "0"...), []byte("0")}, {"bytestr b", append([]byte{}, "0123"...), []byte("0123")}, {"bytestr c", append([]byte("012"), "3"...), []byte("0123")}, {"bytestr d", append([]byte("012"), "345"...), []byte("012345")}, {"int16 a", append([]int16{}), []int16{}}, {"int16 b", append([]int16{}, 0), []int16{0}}, {"int16 c", append([]int16{}, 0, 1, 2, 3), []int16{0, 1, 2, 3}}, {"int16 d", append([]int16{0, 1, 2}), []int16{0, 1, 2}}, {"int16 e", append([]int16{0, 1, 2}, 3), []int16{0, 1, 2, 3}}, {"int16 f", append([]int16{0, 1, 2}, 3, 4, 5), []int16{0, 1, 2, 3, 4, 5}}, {"int16 g", append([]int16{}, []int16{0}...), []int16{0}}, {"int16 h", append([]int16{}, []int16{0, 1, 2, 3}...), []int16{0, 1, 2, 3}}, {"int16 i", append([]int16{0, 1, 2}, []int16{3}...), []int16{0, 1, 2, 3}}, {"int16 j", append([]int16{0, 1, 2}, []int16{3, 4, 5}...), []int16{0, 1, 2, 3, 4, 5}}, {"uint32 a", append([]uint32{}), []uint32{}}, {"uint32 b", append([]uint32{}, 0), []uint32{0}}, {"uint32 c", append([]uint32{}, 0, 1, 2, 3), []uint32{0, 1, 2, 3}}, {"uint32 d", append([]uint32{0, 1, 2}), []uint32{0, 1, 2}}, {"uint32 e", append([]uint32{0, 1, 2}, 3), []uint32{0, 1, 2, 3}}, {"uint32 f", append([]uint32{0, 1, 2}, 3, 4, 5), []uint32{0, 1, 2, 3, 4, 5}}, {"uint32 g", append([]uint32{}, []uint32{0}...), []uint32{0}}, {"uint32 h", append([]uint32{}, []uint32{0, 1, 2, 3}...), []uint32{0, 1, 2, 3}}, {"uint32 i", append([]uint32{0, 1, 2}, []uint32{3}...), []uint32{0, 1, 2, 3}}, {"uint32 j", append([]uint32{0, 1, 2}, []uint32{3, 4, 5}...), []uint32{0, 1, 2, 3, 4, 5}}, {"float64 a", append([]float64{}), []float64{}}, {"float64 b", append([]float64{}, 0), []float64{0}}, {"float64 c", append([]float64{}, 0, 1, 2, 3), []float64{0, 1, 2, 3}}, {"float64 d", append([]float64{0, 1, 2}), []float64{0, 1, 2}}, {"float64 e", append([]float64{0, 1, 2}, 3), []float64{0, 1, 2, 3}}, {"float64 f", append([]float64{0, 1, 2}, 3, 4, 5), []float64{0, 1, 2, 3, 4, 5}}, {"float64 g", append([]float64{}, []float64{0}...), []float64{0}}, {"float64 h", append([]float64{}, []float64{0, 1, 2, 3}...), []float64{0, 1, 2, 3}}, {"float64 i", append([]float64{0, 1, 2}, []float64{3}...), []float64{0, 1, 2, 3}}, {"float64 j", append([]float64{0, 1, 2}, []float64{3, 4, 5}...), []float64{0, 1, 2, 3, 4, 5}}, {"complex128 a", append([]complex128{}), []complex128{}}, {"complex128 b", append([]complex128{}, 0), []complex128{0}}, {"complex128 c", append([]complex128{}, 0, 1, 2, 3), []complex128{0, 1, 2, 3}}, {"complex128 d", append([]complex128{0, 1, 2}), []complex128{0, 1, 2}}, {"complex128 e", append([]complex128{0, 1, 2}, 3), []complex128{0, 1, 2, 3}}, {"complex128 f", append([]complex128{0, 1, 2}, 3, 4, 5), []complex128{0, 1, 2, 3, 4, 5}}, {"complex128 g", append([]complex128{}, []complex128{0}...), []complex128{0}}, {"complex128 h", append([]complex128{}, []complex128{0, 1, 2, 3}...), []complex128{0, 1, 2, 3}}, {"complex128 i", append([]complex128{0, 1, 2}, []complex128{3}...), []complex128{0, 1, 2, 3}}, {"complex128 j", append([]complex128{0, 1, 2}, []complex128{3, 4, 5}...), []complex128{0, 1, 2, 3, 4, 5}}, {"string a", append([]string{}), []string{}}, {"string b", append([]string{}, "0"), []string{"0"}}, {"string c", append([]string{}, "0", "1", "2", "3"), []string{"0", "1", "2", "3"}}, {"string d", append([]string{"0", "1", "2"}), []string{"0", "1", "2"}}, {"string e", append([]string{"0", "1", "2"}, "3"), []string{"0", "1", "2", "3"}}, {"string f", append([]string{"0", "1", "2"}, "3", "4", "5"), []string{"0", "1", "2", "3", "4", "5"}}, {"string g", append([]string{}, []string{"0"}...), []string{"0"}}, {"string h", append([]string{}, []string{"0", "1", "2", "3"}...), []string{"0", "1", "2", "3"}}, {"string i", append([]string{"0", "1", "2"}, []string{"3"}...), []string{"0", "1", "2", "3"}}, {"string j", append([]string{"0", "1", "2"}, []string{"3", "4", "5"}...), []string{"0", "1", "2", "3", "4", "5"}}, {"make a", append([]string{}, make([]string, 0)...), []string{}}, {"make b", append([]string(nil), make([]string, 0)...), []string(nil)}, {"make c", append([]struct{}{}, make([]struct{}, 0)...), []struct{}{}}, {"make d", append([]struct{}{}, make([]struct{}, 2)...), make([]struct{}, 2)}, {"make e", append([]int{0, 1}, make([]int, 0)...), []int{0, 1}}, {"make f", append([]int{0, 1}, make([]int, 2)...), []int{0, 1, 0, 0}}, {"make g", append([]*int{&zero, &one}, make([]*int, 0)...), []*int{&zero, &one}}, {"make h", append([]*int{&zero, &one}, make([]*int, 2)...), []*int{&zero, &one, nil, nil}}, } func verifyStruct() { type T struct { a, b, c string } type S []T e := make(S, 100) for i := range e { e[i] = T{"foo", fmt.Sprintf("%d", i), "bar"} } verify("struct a", append(S{}), S{}) verify("struct b", append(S{}, e[0]), e[0:1]) verify("struct c", append(S{}, e[0], e[1], e[2]), e[0:3]) verify("struct d", append(e[0:1]), e[0:1]) verify("struct e", append(e[0:1], e[1]), e[0:2]) verify("struct f", append(e[0:1], e[1], e[2], e[3]), e[0:4]) verify("struct g", append(e[0:3]), e[0:3]) verify("struct h", append(e[0:3], e[3]), e[0:4]) verify("struct i", append(e[0:3], e[3], e[4], e[5], e[6]), e[0:7]) for i := range e { verify("struct j", append(S{}, e[0:i]...), e[0:i]) input := make(S, i) copy(input, e[0:i]) verify("struct k", append(input, e[i:]...), e) verify("struct k - input modified", input, e[0:i]) } s := make(S, 10, 20) r := make(S, len(s)+len(e)) for i, x := range e { r[len(s)+i] = x } verify("struct l", append(s), s) verify("struct m", append(s, e...), r) } func verifyInterface() { type T interface{} type S []T e := make(S, 100) for i := range e { switch i % 4 { case 0: e[i] = i case 1: e[i] = "foo" case 2: e[i] = fmt.Sprintf("%d", i) case 3: e[i] = float64(i) } } verify("interface a", append(S{}), S{}) verify("interface b", append(S{}, e[0]), e[0:1]) verify("interface c", append(S{}, e[0], e[1], e[2]), e[0:3]) verify("interface d", append(e[0:1]), e[0:1]) verify("interface e", append(e[0:1], e[1]), e[0:2]) verify("interface f", append(e[0:1], e[1], e[2], e[3]), e[0:4]) verify("interface g", append(e[0:3]), e[0:3]) verify("interface h", append(e[0:3], e[3]), e[0:4]) verify("interface i", append(e[0:3], e[3], e[4], e[5], e[6]), e[0:7]) for i := range e { verify("interface j", append(S{}, e[0:i]...), e[0:i]) input := make(S, i) copy(input, e[0:i]) verify("interface k", append(input, e[i:]...), e) verify("interface k - input modified", input, e[0:i]) } s := make(S, 10, 20) r := make(S, len(s)+len(e)) for i, x := range e { r[len(s)+i] = x } verify("interface l", append(s), s) verify("interface m", append(s, e...), r) } type T1 []int type T2 []int func verifyType() { // The second argument to append has type []E where E is the // element type of the first argument. Test that the compiler // accepts two slice types that meet that requirement but are // not assignment compatible. The return type of append is // the type of the first argument. t1 := T1{1} t2 := T2{2} verify("T1", append(t1, t2...), T1{1, 2}) }