fu

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: How does Clojure determine how many arguments an anonymous function (created with the #... notation) expect? user=> (#(identity [2]) 14) java.lang.IllegalArgumentException: Wrong number of args (1) passed to: user$eval3745$fn (NO_SOURCE_FILE:0) 回答1: #(println "Hello, world!") -> no arguments #(println (str "Hello, " % "!")) -> 1 argument ( % is a synonym for %1 ) #(println (str %1 ", " %2 "!")) -> 2 arguments and so on. Note that you do not have to use all %n s, the number of arguments expected is defined by the highest n. So #(println (str

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 have made a function that finds all the URLs within an html file and repeats the same process for each html content linked to the discovered URLs. The function is recursive and can go on endlessly. However, I have put a limit on the recursion by setting a global variable which causes the recursion to stop after 100 recursions. However, php returns this error: Fatal error: Maximum function nesting level of '100' reached, aborting! in D:\wamp\www\crawler1\simplehtmldom_1_5\simple_html_dom.php on line 1355 I found a solution here: Increasing

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: Using SFINAE, i can detect wether a given class has a certain member function. But what if i want to test for inherited member functions? The following does not work in VC8 and GCC4 (i.e. detects that A has a member function foo() , but not that B inherits one): #include <iostream> template<typename T, typename Sig> struct has_foo { template <typename U, U> struct type_check; template <typename V> static char (& chk(type_check<Sig, &V::foo>*))[1]; template <typename > static char (& chk(...))[2]; static bool const value = (sizeof(chk<T>(0))

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 know alot of similar questions were asked before but i couldn't find something that would fix this warning i get: MyIntFunctions.c:19:2: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration] Occurs here: void IntPrint (const void *key) { printf("%d", *(int*)key); // line 19 printf("\t-->\t"); } and a similar warning: MyStringFunctions.c:22:2: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration] void StringPrint (const void *key) { printf("%s",(char*)key); //line 22 printf("\t--

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'm building a small graphing utility using Pandas and MatPlotLib to parse data and output graphs from a machine at work. When I output the graph using plt . show () I end up with an unclear image that has legends and labels crowding each other out like so. However, expanding the window to full-screen resolves my problem, repositioning everything in a way that allows the graph to be visible. I then save the graph to a .png like so plt . savefig ( 'sampleFileName.png' ) But when it saves to the image, the full-screen, correct

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: What happens during the execution of cvWaitKey() ? What are some typical use cases? I saw it in OpenCV reference but the documentation isn't clear on its exact purpose. 回答1: cvWaitKey(x) / cv::waitKey(x) does two things: It waits for x milliseconds for a key press on a OpenCV window (i.e. created from cv::imshow() ). Note that it does not listen on stdin for console input. If a key was pressed during that time, it returns the key's ASCII code. Otherwise, it returns -1 . (If x is zero, it waits indefinitely for the key press.) It handles any

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 am trying to use Navigator within a React-Native app, but I am running into issues. At the beginning of the app, I am loading this LoginScreen component: return ; it has this: class LoginScreen extends React . Component { props : { navigator : Navigator ; }; render () { return ( this . props . navigator . push ({ userFlow })} caption = "Create Account" /> );} I want it to lead to the userFlow component. I have a component called F8Navigator, that has this: const { navigator } = this . refs ; if ( navigator && navigator .

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 trying to compare some Dates in javascript. For some reason, I'm getting "Tue May 01 2012 16:43:03 GMT+0900 (JST) has no method 'getTime'" Of course, strings don't have methods I started with this code inside a callback, but it was failing at getTime() on the line that creates var age : for (var i = 0; i I've pared it down so my example page is literally just this: date test This is failing in Chrome 18.0.1025.168 and Firefox 13.0. Screenshots of what I've tried: So my question: wth? Do I have to use ParseDate()? Why isn't this working?

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: This question was closed as exact duplicate since I chose a misleading question title. It was not wrong but suggested an issue often discussed, e.g. in this question . Since the content is about a more specific topic never covered on Stackoverflow I would like the question to be reopened. This happened now, so here goes the question. I have given a function expecting three integer values as parameters length(int x, int y, int z); . I cannot modify this function, e.g. to accept a struct or tuple of whatever as single parameter. Is there a way

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 was thinking how to get the absolute value of an integer without using if statement nor abs() . At first I was using shift bits left ( ), trying to get negative sign out of the range, then shift bits right back to where it be, but unfortunately it doesn't work for me. Please let me know why it isn't working and other alternatives ways to do it. 回答1: From Bit Twiddling Hacks : int v; // we want to find the absolute value of v unsigned int r; // the result goes here int const mask = v >> sizeof(int) * CHAR_BIT - 1; r = (v + mask) ^ mask; 回答2