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How to resolve “must be an instance of string, string given” prior to PHP 7?

... the class string is expected, but you're giving it a (scalar) string. The error message may be funny, but it's not supposed to work to begin with. Given the dynamic typing system, this actually makes some sort of perverted sense. You can only manually "type hint" scalar types: function foo($strin...
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Performing Breadth First Search recursively

...Queue.Empty.enqueue[Tree[T]](t) val qq = bfsNumForest(1, q) qq.dequeue._1 } share | improve this answer | follow | ...
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No route matches “/users/sign_out” devise rails 3

... Getting the same error as mmichael. This above test works for me. – rtfminc Jul 3 '11 at 6:42
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Swift: #warning equivalent

...or most people, but anyone who uses the R.swift pod will run into the same error I had because R.swift is a directory – Dan F May 27 '16 at 14:12  |  ...
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联网 App 入门专题:5 课从共享留言到带图商品墙(附 .aia 源码与服务端) ...

...册登录教程。想继续用自己的服务器,可以看 Web 客户端连接 MySQL。 验证范围 每个 .aia 都用正式编辑器同源 Blockly 载入并保存重开(0 错误)、经平台真实后台导入、编译出 Android APK;每课的业务逻辑都连着...
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A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7

...nReceipt:receipt success:successBlock failure:failureBlock]; } failure:^(NSError *error) { [self failWithBlock:failureBlock error:error]; }]; Getting the receipt data The receipt is in [[NSBundle mainBundle] appStoreReceiptURL] and is actually a PCKS7 container. I suck at cryptography so I us...
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No appenders could be found for logger(log4j)?

...ate to the folder that contains your log4j.properties file Apply Run The error message should no longer appear. share | improve this answer | follow | ...
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What is the single most influential book every programmer should read? [closed]

... For Computer Scientists http://ecx.images-amazon.com/images/I/51HCJ5R42KL._SL500_BO2,204,203,200_AA219_PIsitb-sticker-dp-arrow,TopRight,-24,-23_SH20_OU02_.jpg Discrete Mathematics For Computer Scientists by J.K. Truss. While this doesn't teach you programming, it teaches you fundamental mathemati...
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Is volatile expensive?

After reading The JSR-133 Cookbook for Compiler Writers about the implementation of volatile, especially section "Interactions with Atomic Instructions" I assume that reading a volatile variable without updating it needs a LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad ...
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Web API Put Request generates an Http 405 Method Not Allowed error

Here's the call to the PUT method on my Web API - the third line in the method (I am calling the Web API from an ASP.NET MVC front end): ...