ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãS炟[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝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¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;ÐЦ¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$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`ߨŠéí¯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? 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All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Test that basic operations on named types are valid // and preserve the type. package main type Array [10]byte type Bool bool type Chan chan int type Float float32 type Int int type Map map[int]byte type Slice []byte type String string // Calling these functions checks at compile time that the argument // can be converted implicitly to (used as) the given type. func asArray(Array) {} func asBool(Bool) {} func asChan(Chan) {} func asFloat(Float) {} func asInt(Int) {} func asMap(Map) {} func asSlice(Slice) {} func asString(String) {} func (Map) M() {} // These functions check at run time that the default type // (in the absence of any implicit conversion hints) // is the given type. func isArray(x interface{}) { _ = x.(Array) } func isBool(x interface{}) { _ = x.(Bool) } func isChan(x interface{}) { _ = x.(Chan) } func isFloat(x interface{}) { _ = x.(Float) } func isInt(x interface{}) { _ = x.(Int) } func isMap(x interface{}) { _ = x.(Map) } func isSlice(x interface{}) { _ = x.(Slice) } func isString(x interface{}) { _ = x.(String) } func main() { var ( a Array b Bool = true c Chan = make(Chan) f Float = 1 i Int = 1 m Map = make(Map) slice Slice = make(Slice, 10) str String = "hello" ) asArray(a) isArray(a) asArray(*&a) isArray(*&a) asArray(Array{}) isArray(Array{}) asBool(b) isBool(b) asBool(!b) isBool(!b) asBool(true) asBool(*&b) isBool(*&b) asBool(Bool(true)) isBool(Bool(true)) asChan(c) isChan(c) asChan(make(Chan)) isChan(make(Chan)) asChan(*&c) isChan(*&c) asChan(Chan(nil)) isChan(Chan(nil)) asFloat(f) isFloat(f) asFloat(-f) isFloat(-f) asFloat(+f) isFloat(+f) asFloat(f + 1) isFloat(f + 1) asFloat(1 + f) isFloat(1 + f) asFloat(f + f) isFloat(f + f) f++ f += 2 asFloat(f - 1) isFloat(f - 1) asFloat(1 - f) isFloat(1 - f) asFloat(f - f) isFloat(f - f) f-- f -= 2 asFloat(f * 2.5) isFloat(f * 2.5) asFloat(2.5 * f) isFloat(2.5 * f) asFloat(f * f) isFloat(f * f) f *= 4 asFloat(f / 2.5) isFloat(f / 2.5) asFloat(2.5 / f) isFloat(2.5 / f) asFloat(f / f) isFloat(f / f) f /= 4 asFloat(f) isFloat(f) f = 5 asFloat(*&f) isFloat(*&f) asFloat(234) asFloat(Float(234)) isFloat(Float(234)) asFloat(1.2) asFloat(Float(i)) isFloat(Float(i)) asInt(i) isInt(i) asInt(-i) isInt(-i) asInt(^i) isInt(^i) asInt(+i) isInt(+i) asInt(i + 1) isInt(i + 1) asInt(1 + i) isInt(1 + i) asInt(i + i) isInt(i + i) i++ i += 1 asInt(i - 1) isInt(i - 1) asInt(1 - i) isInt(1 - i) asInt(i - i) isInt(i - i) i-- i -= 1 asInt(i * 2) isInt(i * 2) asInt(2 * i) isInt(2 * i) asInt(i * i) isInt(i * i) i *= 2 asInt(i / 5) isInt(i / 5) asInt(5 / i) isInt(5 / i) asInt(i / i) isInt(i / i) i /= 2 asInt(i % 5) isInt(i % 5) asInt(5 % i) isInt(5 % i) asInt(i % i) isInt(i % i) i %= 2 asInt(i & 5) isInt(i & 5) asInt(5 & i) isInt(5 & i) asInt(i & i) isInt(i & i) i &= 2 asInt(i &^ 5) isInt(i &^ 5) asInt(5 &^ i) isInt(5 &^ i) asInt(i &^ i) isInt(i &^ i) i &^= 2 asInt(i | 5) isInt(i | 5) asInt(5 | i) isInt(5 | i) asInt(i | i) isInt(i | i) i |= 2 asInt(i ^ 5) isInt(i ^ 5) asInt(5 ^ i) isInt(5 ^ i) asInt(i ^ i) isInt(i ^ i) i ^= 2 asInt(i << 4) isInt(i << 4) i <<= 2 asInt(i >> 4) isInt(i >> 4) i >>= 2 asInt(i) isInt(i) asInt(0) asInt(Int(0)) isInt(Int(0)) i = 10 asInt(*&i) isInt(*&i) asInt(23) asInt(Int(f)) isInt(Int(f)) asMap(m) isMap(m) asMap(nil) m = nil asMap(make(Map)) isMap(make(Map)) asMap(*&m) isMap(*&m) asMap(Map(nil)) isMap(Map(nil)) asMap(Map{}) isMap(Map{}) asSlice(slice) isSlice(slice) asSlice(make(Slice, 5)) isSlice(make(Slice, 5)) asSlice([]byte{1, 2, 3}) asSlice([]byte{1, 2, 3}[0:2]) asSlice(slice[0:4]) isSlice(slice[0:4]) asSlice(slice[3:8]) isSlice(slice[3:8]) asSlice(nil) asSlice(Slice(nil)) isSlice(Slice(nil)) slice = nil asSlice(Slice{1, 2, 3}) isSlice(Slice{1, 2, 3}) asSlice(Slice{}) isSlice(Slice{}) asSlice(*&slice) isSlice(*&slice) asString(str) isString(str) asString(str + "a") isString(str + "a") asString("a" + str) isString("a" + str) asString(str + str) isString(str + str) str += "a" str += str asString(String('a')) isString(String('a')) asString(String([]byte(slice))) isString(String([]byte(slice))) asString(String([]byte(nil))) isString(String([]byte(nil))) asString("hello") asString(String("hello")) isString(String("hello")) str = "hello" isString(str) asString(*&str) isString(*&str) }