[ad_1] Here’s a simplistic implementation of what you asking. #include <stddef.h> #include <stdlib.h> #include <stdio.h> int normalize_weights(double *weights, size_t num_weights) { double sum = 0; for (size_t i = 0; i < num_weights; ++i) { if (weights[i] < 0) return -1; sum += weights[i]; } if (sum == 0) return -1; for (size_t i = … Read more
Introduction [ad_1] This question is related to the use of vectors in programming. A vector is a data structure that stores a collection of elements, and it is often used in programming languages such as C++ and Java. The question is whether it is possible to access a location in a vector which has not … Read more
[ad_1] all I want to know is what the Store() and ~Store() parts do They are declaring the struct’s constructor and destructor, respectively. what the point of the public: part is in the struct To declare them as publically accessible so outside code can call them. and also what the part in f.cpp actually does … Read more
[ad_1] This is a pretty straightforward query: allDevices.Where(d => d.Options.Any(o => o.Name == “Foot Pedal” && o.Installed)); Remember that a lambda is just a function. It can call other functions, declare variables, and everything else you can do in normal code. [ad_2] solved Linq and List of Lists
[ad_1] this is caused because you need to link the library libgdi32.a, if you are using the DevC++, click in Tools->Compiler Options, when open the window, check the box “Add these commands to the linker command line” and in the below textbox add the text: -lgdi32 you form need to be like this: 3 [ad_2] … Read more
[ad_1] Abc &obj11 = fun1(); This line makes the program ill-formed; the C++ specification forbids temporaries to be bound to a reference that is not const. A compliant C++ compiler would emit an error to this effect. Presumably you are using the Microsoft Visual C++ compiler, which is well-known for allowing the binding of a … Read more
[ad_1] This is taking the pairs by value: void swap (pair a, pair b) // a is a copy of pairs[i] and b is a copy of pairs[j] The change you make to a and b inside the function will be discarded when the function exits. a and b are local to the function only. … Read more
[ad_1] Unless you have a global char*[] you want to return from this function, yes, you need dynamic allocation, it is the only way you can safely return a variable created inside the function, for all variables stored in the stack will be destroyed as soon as the function finishes. char** myfun() { char **p … Read more
[ad_1] With the risk of summoning all sorts of foul creatures (and I’m not mainly referring to SO users), here’s a little unit test for you: [TestMethod] public void RegexTest() { var input = “<th>192.168.1.1</th>\r<th>443</th>”; var regex = @”(?s)<th>([0-9\.]*?)</th>.*?<th>([0-9]*?)</th>”; var matches = Regex.Matches(input, regex); foreach (Match match in matches) Console.WriteLine(“IP: {0}, port: {1}”, match.Groups[1].Value, match.Groups[2].Value); … Read more
[ad_1] template<typename T> T xtime(T x) { return ((x<<1) ^ (((x>>7) & 1) * 0x1b)); } [ad_2] solved Converting a macro into a function
Introduction [ad_1] If you are having trouble assigning a value to a variable in your program, this article will provide you with some helpful tips and tricks to help you solve the issue. We will discuss the different types of errors that can occur when trying to assign a value, as well as how to … Read more
[ad_1] Finally got solution XmlDocument doc = new XmlDocument(); doc.Load(filePath); XmlNode PackagesListNode = doc.SelectSingleNode(“/Packages”); XmlNodeList Packages = PackagesListNode.SelectNodes(“Package”); foreach (XmlNode node in Packages) { TableLoadInstruction instruction = new TableLoadInstruction(); instruction.PackageName = node.SelectSingleNode(“PackageName”).InnerText; instruction.Sequence = Convert.ToInt16(node.SelectSingleNode(“SequenceID”).InnerText); instruction.AlwaysRun = Convert.ToBoolean(node.SelectSingleNode(“AlwaysRun”).InnerText); loadInstructions.Add(instruction); } 1 [ad_2] solved Parse xml in c#.net [duplicate]
Introduction [ad_1] A decaying average is a type of moving average that gives more weight to recent data points and less weight to older data points. This type of average is useful for tracking trends in data that changes over time. In this article, we will discuss how to calculate a decaying average and provide … Read more
[ad_1] You’re reading too much in to the word char. At the end of the day, it is little more than a size. In this case, 8 bits. Shorts are 16 (and you can wear them on the beach), ints can be 32 or something else, and longs can be 64 (or ints, or a … Read more
[ad_1] Actually there are many solutions if you search in Google. Here is one simple solution as below. First define one model containing face and vertex info: class obj3dmodel { struct vertex{ double x; double y; double z; }; struct face{ unsigned int v1,v2,v3; }; std::vector<vertex> vetexes; std::vector<face> faces; public: void readfile(const char* filename); void … Read more