assertions

问题 In some scientific environments, you often cannot go without FORTRAN as most of the developers only know that idiom, and there is lot of legacy code and related experience. And frankly, there are not many other cross-platform options for high performance programming (C++ would do the task, but the syntax, zero-starting arrays, and pointers are not compatible with some people). So, let's assume a new project must use Fortran 90, but I want to build the most modern software architecture out of

问题 In some scientific environments, you often cannot go without FORTRAN as most of the developers only know that idiom, and there is lot of legacy code and related experience. And frankly, there are not many other cross-platform options for high performance programming (C++ would do the task, but the syntax, zero-starting arrays, and pointers are not compatible with some people). So, let's assume a new project must use Fortran 90, but I want to build the most modern software architecture out of

问题 I'm trying to understand if is possible to configure AssertJ to log the negative result of an assertion to a file without interrupting the routing that is running the comparison. The reason behind this request is that we are comparing the JSON generated by two version of a software to spot differences, but instead of manually creating all the checks I would like to leverage the functionalities already available in AssertJ. As a possible solution to this I was thinking of using a try/catch for

问题 Unit test frameworks generally provide very nice assertion failure messages (I'm using gtest) describing expected and actual values to a particular test. Furthermore, you know the origin of the function call because you're testing the interface of the class. In contrast, assert , when used as a sanity check in the implementation provides some, but more cryptic information. For example, the one I'm working on now . . Assertion failed: (latency > std::chrono::milliseconds(0)), function

问题 I have only one JDK installed in my machine and the code is pointing to the same JDK. I have installed unlimited strength cryptography library in both the folders(C:\Program Files\Java\jdk1.6.0_25\jre\lib\security and C:\Program Files\Java\jre6\lib\security). I keep getting the same exception even after adding the above mentioned unlimited strength library. This is in continuation to other ticket link Exception: Caused by: java.security.InvalidKeyException: Key is too long for unwrapping at

问题 Can you use assertions in android programming? If so how do you enable it in eclipse? 回答1: Since the question was if it is possible... Yes it is possible but I go along with CommonsWare that asserions should be avoided. Anyway see Can I use assert on Android devices? for how to use Assertions on Android 来源： https://stackoverflow.com/questions/9603326/assertions-android-programming

问题 I have been trying to form a small optical flow example with OpenCV for a while now. Everything works except the function call calcOpticalFlowPyrLK, which prints the following failed assertion in the console window: OpenCV Error: Assertion failed (mytype == typ0 || (CV_MAT_CN(mytype) == CV_MAT_CV(type0) && ((1 << type0) & fixedDepthMask) != 0)) in unknown function, file ......\src\opencv\modules\core\src\matrix.cpp, line 1421 The video that I'm parsing is separated into 300 images, labelled

问题 I'm trying to use rspec's mocking to setup expectations that I can verify in the it "should" methods... but I don't know how to do this... when i call the .should_receive methods on the mock, it verifies the expected call as soon as the before :all method exits. here's a small example: describe Foo, "when doing something" do before :all do Bar.should_recieve(:baz) foo = Foo.new foo.create_a_Bar_and_call_baz end it "should call the bar method" do # ??? what do i do here? end end How can i

问题 From what I understand, a constexpr function can be executed at compile time as well as runtime, depending on if the entire evaluation can be done at compile time or not. However, you cannot overload this function to have a runtime and a compile time counterpart. So my question is, how can I put in a runtime assert to ensure that the execution of the runtime function is passed valid parameters along with my static_assert? 回答1: Eric Niebler covers this issue well in Assert and Constexpr in C+

问题 Background I am currently trying to build an autonomous drone using ROS on my Rapsberry Pi which is running an Ubuntu MATE 16.04 LTS . Solving the Computer Vision problem of recognising red circles as of now. Since by nature, the drone is not stable (as there is an internal PID controller stabilising the drone) and due to lighting conditions, the drone often detects the same circle but in a very unstable way. To tackle this problem, comments on [this][1] question suggested that I try video