![\"xcode.jpg\"](\"http:\/\/bobbeaty.com\/wp\/wp-content\/uploads\/2007\/09\/xcode.jpg\" "\\"xcode.jpg\\"")
<\/p>\n<\/p>\n
This morning I decided to take another look at the Xcode 10 performance tests on my CryptoQuip<\/a> puzzle solver, but this time, looking at the Objective-C version and see if the Xcode 10 changes would make it any faster. Turns out, I'm very glad<\/em><\/strong> that I did.<\/p>\n I was getting a very odd error on the line:<\/p>\n the value of argv<\/tt> was causing a SIGABRT<\/tt> - and I just had a feeling it was some setting in the old project file and I needed to clean those up - so after a little bit of updating, it compiled and ran just fine.<\/p>\n I then put in the timing of the call with a few lines:<\/p>\n so that I'd get a similar result as the Swift version - basically, taking everything out of the time in the solution except the attack. That's as close as an apples-to-apples as I could get with the other versions.<\/p>\n What I found out blew me away:<\/p>\n Now the times for Clojure were in the 6 msec... and Swift was about 7 msec... but I had to do a double-take on this... I had no idea<\/em><\/strong> Objective-C was going to be this fast! I had to compute, by hand, the number of milliseconds since the reference date - January 1, 2001 - just to make sure I was doing the math right. I was right... it was right... I checked the code several times, made sure I wasn't skipping the actual solution... and I wasn't.<\/p>\n Wow... Apple has really outdone themselves on this... sub-msec on the solution. Wow! I have to say this is excellent<\/em> news in my book. I can live with Swift, and I know it's the future, and it's fast... but it's not this fast, and that's just amazingly cool!<\/p>\n","protected":false},"excerpt":{"rendered":" This morning I decided to take another look at the Xcode 10 performance tests on my CryptoQuip puzzle solver, but this time, looking at the Objective-C version and see if the Xcode 10 changes would make it any faster. Turns out, I’m very glad that I did. I was getting a very odd error on […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,9,4],"tags":[],"class_list":["post-7674","post","type-post","status-publish","format-standard","hentry","category-apple","category-cocoa-coding","category-open-source-software"],"_links":{"self":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts\/7674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/comments?post=7674"}],"version-history":[{"count":2,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts\/7674\/revisions"}],"predecessor-version":[{"id":7676,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts\/7674\/revisions\/7676"}],"wp:attachment":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/media?parent=7674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/categories?post=7674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/tags?post=7674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}int<\/span> main(<\/span>int<\/span> argc, const<\/span> char<\/span> *<\/span>argv[<\/span>]<\/span>)<\/span>\n{<\/span>\n return<\/span> NSApplicationMain(<\/span>argc, argv)<\/span>;\n}<\/span><\/pre>\n-<\/span> (<\/span>BOOL<\/span>)<\/span> attemptWordBlockAttack\n{<\/span>\n \/\/ sort the puzzle pieces by the number of possible words they match<\/span>\n [<\/span>[<\/span>self getPuzzlePieces]<\/span> sortUsingSelector:<\/span>@selector<\/span>(<\/span>comparePossibles:<\/span>)<\/span>]<\/span>;\n \/\/ ...now run through the standard block attack<\/span>\n NSTimeInterval begin =<\/span> [<\/span>NSDate<\/span><\/a> timeIntervalSinceReferenceDate]<\/span>;\n BOOL<\/span> ans =<\/span> [<\/span>self doWordBlockAttackOnIndex:<\/span>0<\/span> withLegend:<\/span>[<\/span>self getStartingLegend]<\/span>]<\/span>;\n NSLog(<\/span>@<\/span>"%lu Solution(s) took %f msec"<\/span>,\n (<\/span>unsigned<\/span> long<\/span>)<\/span>[<\/span>[<\/span>self getSolutions]<\/span> count]<\/span>,\n (<\/span>[<\/span>NSDate<\/span><\/a> timeIntervalSinceReferenceDate]<\/span> -<\/span> begin)<\/span> *<\/span> 1000<\/span>)<\/span>;\n return<\/span> ans;\n}<\/span><\/pre>\n\nCryptoQuip[87317:16056980] Loaded 25384 words from \/Users\/drbob\/...\/words\nCryptoQuip[87317:16056980] Ready\nCryptoQuip[87317:16056980] Solving puzzle: 'Fict O ncc bivteclnbklzn O lcpji ukl pt\n vzglcddp' where b=t\nCryptoQuip[87317:16056980] 1 Solution(s) took 0.464082 msec\nCryptoQuip[87317:16056980] Solution found: 'When I see thunderstorms I reach for an\n umbrella'\n<\/pre>\n