array

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: My compiler behaves oddly when I try to pass a fixed-size array to a template function. The code looks as follows: #include <algorithm> #include <iostream> #include <iterator> template < typename TSize , TSize N > void f ( TSize (& array )[ N ]) { std :: copy ( array , array + N , std :: ostream_iterator < TSize >( std :: cout , " " )); std :: cout << std :: endl ; } int main () { int x [] = { 1 , 2 , 3 , 4 , 5 }; unsigned int y [] = { 1 , 2 , 3 , 4 , 5 }; f ( x ); f ( y ); //line 15 (see the error message) } It produces 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): 问题: int main() { char a[7] = "Network"; return 0; } A string literal in C is terminated internally with a nul character . So, the above code should give a compilation error since the actual length of the string literal Network is 8 and it cannot fit in a char[7] array. However, gcc (even with -Wall ) on Ubuntu compiles this code without any error or warning. Why does gcc allow this and not flag it as compilation error? gcc only gives a warning (still no error!) when the char array size is smaller than the string literal. For example, it warns on

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 wish to enter one int and another long ex: 1 and 1000000000, and now I wish to create an array of size 1000000000. And then at each index of array, store int val, ex: arr[100000000] = 4 . When I'm trying to do this Netbeans shows me an error in this line: arr = new long[y+1]` and `arr[j] = 0` "Possible Lossy conversion from long to int". Here's my code:- public static void main(String[] args) throws IOException { BufferedReader s = new BufferedReader(new InputStreamReader(System.in)); String[] xe = s.readLine().split(" "); int x = Integer

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: Not sure about posting rules, but I will tell you out of the gate that this is a repeat question of this one , but I am asking if this is the "best practice" way to do this? 回答1: That is the straight forward to do this. If you need fast access multiple times, you should create a map keyed by the property name that you're searching by. Here's a function that takes arrays and builds keyed maps. It's not all-purpose, but you should be able to modify it for your own use. /** * Given an array and a property name to key by, returns a map that is

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 writing a custom MVC framework for a PHP project and everything is great until it comes to getting arguments from the URL route. I'm stuck on passing parts of the URL route into a function argument dynamically. I already have a method which is just to implode the route and use the array for the function arguments but I would really like to know how to do it like in CodeIgnitor or CakePHP. Here's what i want to have done. The site url would be... url: http://yoursite.com/profile/view/35/foo and in my controller I would have... <?php Class

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: To make my question clear say if I have an array a as Out[123]: [1, 3, 4, 6, 9, 10, 54] When I try to search the numbers in the list, searchsort returns correct value but when I try something not in the list, it returns an absurd value here is some of the results In [131]: a Out[131]: [1, 3, 4, 6, 9, 10, 54] In [132]: searchsorted(a,1) Out[132]: 0 In [133]: searchsorted(a,6) Out[133]: 3 In [134]: searchsorted(a,[9,54,1]) Out[134]: array([4, 6, 0]) In [135]: searchsorted(a,[9,54,1,0]) Out[135]: array([4, 6, 0, 0]) ***> # here 0 is not in 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): 问题: In cakephp I am trying to check if an file input field has a file attached, and if not output an error. I have done this with other fields but just can't seem to get this to work on that field. Here is the model array('notempty'), 'uploadeduploaded_file' => array('notempty') ); ?> and here is my ctp file <?php echo $form->input('Uploaded.uploaded_file', array('type' => 'file', 'label' => 'Upload file', "label" => false)); ?> I am guessing that it must be something to do with what I should call the field in the model, but I have tried all

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: How to add a method to a base type, say Array? In the global module this will be recognized interface Array { remove ( o ): Array ; } but where to put the actual implementation? 回答1: You can use the prototype to extend Array: interface Array { remove ( o : T ): Array ; } Array . prototype . remove = function ( o ) { // code to remove "o" return this ; } 回答2: declare global seems to be the ticket as of TypeScript 2.1. Note that Array.prototype is of type any[] , so if you want to have your function implementation checked for

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've got a very long array of objects that is about 100,000 items in size, and just before I got to write it to file, I pass the data into JSON.stringify I get this error: JSON.stringify( ^ RangeError: Invalid string length How can I stringify a very large json object successfully? Update: since I initially had written this question, I've become more familiar with processing large amounts of data, and I prefer to use Apache Spark for this process. In Spark, it is customary to not use large JSON arrays, but rather a stream or file containing

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 got a webSocket comunication, I recieve base64 encoded string, convert it to uint8 and work on it, but now I need to send back, I got the uint8 array, and need to convert it to base64 string, so I can send it. How can I make this convertion? 回答1: If your browser has TextDecoder then use that: var u8 = new Uint8Array([65, 66, 67, 68]); var decoder = new TextDecoder('utf8'); var b64encoded = btoa(decoder.decode(u8)); If you need to support browsers that do not have TextDecoder (currently just IE and Edge), then the best option is to use a