porting

问题 C# has the notion of events on a language level, using the reserved keywords event and delegate to define publisher and subscriber methods. It has been asked if Java has native support for that but the answer is obviously no. There are several alternatives, which include using AWT/Swing styled events, building my own Observer pattern or using other means of publish/subscribe. It is possible but as one answer said, "just requires a bit more legwork." In general any implementation follows the

问题 This question already has answers here : AF_UNIX in windows (3 answers) Closed last year . I want to know how to use something that behaves like Unix Domain Socket on Windows. The behaviour is: A process will be a "server" and receive connections from other processes and it can keep and use connections from different processes, as a TCP socket does. IP socket is not a solution, because it requires to choose a port, processes from other applications may need the chosen port, and the open port

问题 I have phonegap app and I wish to port it to Mac OS X Is there any similar to phonegap platform that make it possible to build native apps for Mac OS X from web apps. I also interested in Windows and Linux. I wish to be able to hide app in tray and create dialog windows. UPDATE I selected Cordova/PhoneGap that now support Mac OS X. When I asked question PhoneGap had no support on desktop but think change. 回答1: I expermented with MacGap which was a port of Phonegap to OSX. https://github.com

问题 I am porting a game written in C++ to Android using NDK. I need to know how much memory it consumes while running. I am looking for programmatically way to find the memory usage of Android application written in C++. 回答1: In Java, you can check the native memory allocated/used with: Debug.getNativeHeapAllocatedSize() Debug.getNativeHeapSize() See: http://developer.android.com/reference/android/os/Debug.html#getNativeHeapAllocatedSize%28%29 http://developer.android.com/reference/android/os

问题 im trying to port application from cygwin to visual studio 2008 express but im getting this error : error C3861: 'strcasecmp': identifier not found in this type of code: if (!strcasecmp("A0", s)) .... what is the replacement in vs? i can't find any thing in the net 回答1: add this to your precompiled header (or some other config.h) #ifdef _MSC_VER //not #if defined(_WIN32) || defined(_WIN64) because we have strncasecmp in mingw #define strncasecmp _strnicmp #define strcasecmp _stricmp #endif

问题 im trying to port application from cygwin to visual studio 2008 express but im getting this error : error C3861: 'strcasecmp': identifier not found in this type of code: if (!strcasecmp("A0", s)) .... what is the replacement in vs? i can't find any thing in the net 回答1: add this to your precompiled header (or some other config.h) #ifdef _MSC_VER //not #if defined(_WIN32) || defined(_WIN64) because we have strncasecmp in mingw #define strncasecmp _strnicmp #define strcasecmp _stricmp #endif

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . Call to undefined method after upgrading to PHP 5.4.0 mentions a few APC bug-reports from March 2012. My concrete question is: Is PHP

问题 MATLAB code exists to find the so-called "minimum volume enclosing ellipsoid" (e.g. here, also here). I'll paste the relevant part for convenience: function [A , c] = MinVolEllipse(P, tolerance) [d N] = size(P); Q = zeros(d+1,N); Q(1:d,:) = P(1:d,1:N); Q(d+1,:) = ones(1,N); count = 1; err = 1; u = (1/N) * ones(N,1); while err > tolerance, X = Q * diag(u) * Q'; M = diag(Q' * inv(X) * Q); [maximum j] = max(M); step_size = (maximum - d -1)/((d+1)*(maximum-1)); new_u = (1 - step_size)*u ; new_u(j

问题 MATLAB code exists to find the so-called "minimum volume enclosing ellipsoid" (e.g. here, also here). I'll paste the relevant part for convenience: function [A , c] = MinVolEllipse(P, tolerance) [d N] = size(P); Q = zeros(d+1,N); Q(1:d,:) = P(1:d,1:N); Q(d+1,:) = ones(1,N); count = 1; err = 1; u = (1/N) * ones(N,1); while err > tolerance, X = Q * diag(u) * Q'; M = diag(Q' * inv(X) * Q); [maximum j] = max(M); step_size = (maximum - d -1)/((d+1)*(maximum-1)); new_u = (1 - step_size)*u ; new_u(j

问题 I use R but I am translating code from matlab to R . I have reached a section which I cannot grok. My research shows that the @ allows you to call a function by another name with fixed variables e.g. g = @(b) f(a1, b, c1) allows me to call f only specifying b by doing g(b) In the code I am working with there is a function function dN = WW(N,h,A,P,aA,aP,bA,bP) at some point in the code it appears WW is called, but is called with f = @(t,N) WW(N,h,A,P,aA,aP,bA,bP) Why I am so confused is that t