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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I like to make GDB set a break point when a variable equal some value I set, I tried this example: #include main() { int i = 0; for(i=0;i Output from GDB: (gdb) break if ((int)i == 5) No default breakpoint address now. (gdb) run Starting program: /home/SIFE/run 0 1 2 3 4 5 6 Program exited normally. (gdb) Like you see, GDB didn't make any break point, is this possible with GDB? 回答1: in addition to a watchpoint nested inside a breakpoint you can also set a single breakpoint on the 'filename:line_number' and use a condition. I find it

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm learning C++ and in my class we are going over Constructors and Overload Constructor, and I just can figure out how to get this overload constructor working. I get error C3867 " 'Integer::toInt': non-standard syntax; use '&' to create a pointer to member" in Double.cpp I have stuck on this for the past 2 hours now I have no clue how to move forward any help is appreciated. Double.h : #ifndef DOUBLE #define DOUBLE class Integer; class Double { public: double num; public: void equal(double value); double toDouble()const; // Constructors

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I created a test project showing the problem. When I do a fast pan from the left or right edge, during the state UIGestureRecognizerState.Began , the translationInView is equal to (0.0, 0.0). This happens when you are in landscape and do the gesture in the lower half of the device (iphone 6 in my case) or when you are in portrait and do the gesture in about the 1rst third part of the screen (from the bottom). Is it... normal? I guess it's probably know but couldn't find anything. 回答1: I don't think there's anything wrong with your code. The

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: This question already has an answer here: Why isn't [1,2,3] equal to itself in Javascript? 6 answers The following is done in Firebug: >>> [ 1 , 2 ] == [ 1 , 2 ] false >>> ({ a : 1 }) == ({ a : 1 }) false I thought Javscript has some rule that says, if an Object or Array has the same references to the same elements, then they are equal? But even if I say >>> foo = { a : 1 } Object { a = 1 } >>> [ foo ] == [ foo ] false >>> ({ a : foo }) == ({ a : foo }) false Is there a way to make it so that it can do the element comparison and

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: during validation I would like to compare with an attribute from another model. Is it possible? If yes, I would be grateful if you would point me to the right direction. I imagine it somehow to access model B in model A, but maybe my logic is not good, and I have no clue how can this be achieved. Thanks. 回答1: You can try to build an inline validator see this doc for validator and for inline validator this is a brief sample public function rules() { return [ ..... ['my_field', 'validateMyCompare'], .... ]; } public function validateMyCompare(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: If I implement java.lang.Comparable for a class, do I still have to override the equals() method? Or will the Comparable work for equals as well? If the answer is no , then what if some discrepancy arises? Let's say the way I term two objects as equal within the equals() method is different from the way I term two objects of the same class as equal within the compareTo() of the Comparable . Moreover, if I implement Comparable , do I also have to override equals() ? 回答1: While it is recommended (and pretty sensible) that having a

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm having trouble finding a function in R that performs equal-frequency discretization. I stumbled on the 'infotheo' package, but after some testing I found that the algorithm is broken. 'dprep' seems to no longer be supported on CRAN. EDIT : For clarity, I do not need to seperate the values between the bins. I really want equal frequency, it doesn't matter if one value ends up in two bins. Eg : c(1,3,2,1,2,2) should give a bin c(1,1,2) and one c(2,2,3) 回答1: EDIT : given your real goal, why don't you just do (corrected) : EqualFreq2 This

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Is there any difference between testing isTRUE(all.equal(x, y)) and identical(x, y) ? The help page says: Don't use 'all.equal' directly in 'if' expressions-either use 'isTRUE(all.equal(....))' or 'identical' if appropriate. but that "if appropriate" leaves me in doubt. How do I decide which of the two is appropriate? 回答1: all.equal tests for near equality, while identical is more exact (e.g. it has no tolerance for differences, and it compares storage type). From ?identical: The function ‘all.equal’ is also sometimes used to test equality

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: When I'm looking at the Java Object Ordering tutorial, the last section 'Comparators' of the article confused me a little bit. By defining a class Employee which itself is comparable by employee's name, the tutorial doesn't show if this class has overridden the equals method. Then it uses a customized Comparator in which the employees are sorted by the seniority to sort a list of employees and which I could understand. Then the tutorial explains why this won't work for a sorted collection such as TreeSet (a SortedSet ), and the reason is: it

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have two variables: char charTime [] = "TIME" ; char buf [] = "SOMETHINGELSE" ; I want to check if these two are equal... using charTime == buf doesn't work. What should I use, and can someone explain why using == doesn't work? Would this action be different in C and C++? 回答1: char charTime [] = "TIME" ; char buf [] = "SOMETHINGELSE" ; C++ and C (remove std:: for C): bool equal = ( std :: strcmp ( charTime , buf ) == 0 ); But the true C++ way: std :: string charTime = "TIME" , buf = "SOMETHINGELSE" ; bool equal = ( charTime ==