c++

[Solved] C# get Image Url from JSON response [duplicate]

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[ad_1] You can use LINQ to JSON in Newtonsoft.Json to get url from JSON. string stringJson = @”{ “”total_items””: “”24″”, “”page_number””: “”1″”, “”page_size””: “”10″”, “”page_count””: “”3″”, “”cars””: { “”car””: [ { “”url””: “”<honda-1-url>””, “”id””: “”honda-1″”, “”city_name””: “”Seattle””, “”description””: “”black Honda””, “”image””: { “”thumb””: { “”width””: “”32″”, “”url””: “”<image_url>/honda1.jpg””, “”height””: “”32″” } }, “”date””: “”2015-12-09 13:20:20″” … Read more

[Solved] Invoke Delegate With Right Type [closed]

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[ad_1] Two options to consider: Use dynamic typing to call a generic method which will return you a Func<object, object> which you can use later by wrapping up an expression-tree-compiled delegate: public Func<Object, Object> CreateFunc(object sampleValue) { dynamic dynamicValue = sampleValue; return CreateFuncImpl(dynamicValue); // Dynamic type inference } private Func<Object, Object> CreateFuncImpl<T>(T sampleValue) { // … Read more

[Solved] C# overloaded methods

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[ad_1] Two methods with the same name but different signatures is called overloaded method. At compile time Compiler will identify the method based on the method signature even though the name of the method is same. void Add(int x, int y) { Console.WriteLine(“Add int”); } void Add(double x, double y) { Console.WriteLine(“Add double”); } Here … Read more

[Solved] Free() before return 0;

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[ad_1] It is implementation specific. On most operating systems (notably desktop or server OSes, e.g. Linux, MacOSX, Windows…) once a process is terminated, every used resources is released, and that includes its virtual address space. Hence even unfreed heap memory is released. In particular, if you code a quickly running program (e.g. you know that … Read more

[Solved] How to sort easily a XML file in C#? [closed]

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[ad_1] This might work for you var xml = new XmlDocument(); xml.LoadXml(“<colors>” + “<green>150</green>” + “<red>18</red>” + “<blue>920</blue>” + “<orange>80</orange>” + “<purple>77</purple>” + “</colors>”); var lst = new Dictionary<string,int>(); foreach (XmlNode n in xml[“colors”].ChildNodes) lst.Add(n.Name, int.Parse(n.InnerText)); var sb = new StringBuilder(); foreach (KeyValuePair<string, int> n in lst.OrderBy(kvp => kvp.Value)) sb.AppendFormat(“#define {0} {1} // <{0}>\n”, n.Key, … Read more

[Solved] std::vector inserting std::pair

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[ad_1] The original poster failed to actually post the code that was causing the problem. He has since edited my post with the correct code that demonstrates the problem. The code that demonstrates the problem follows: template <class R, typename B=int> class AVectorContainer { public: AVectorContainer() {} typedef R* ptr_Type; typedef const B & const_ref_Type; … Read more

[Solved] impacting Strings with pointers [closed]

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[ad_1] This scanf(“%s”,kar[1000]); should trigger a compiler warning, as you pass a char where a char* is expected. You pass the 1001st element of kar (which is out of kar‘s bounds, BTW). In C array indices start with 0 for the 1st element. To scan into kar, just pass the address of kar‘s 1st element. … Read more

[Solved] decltype in static_assert

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[ad_1] static_assert works fine, is your code that never assert. The template struct X defines low and high as of type IntT. They are both the same type, whatever values they have. When you instantiate the struct (X<char,1,’a’> x) you are telling the compiler that the type of IntT is char and are giving to … Read more

[Solved] Parameter passing in C [closed]

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[ad_1] As you can see from the declaration, argv is an array of char pointers. This means that your main function is not being passed the numerical value 5, but the (probably ASCII- or UTF8-) encoded string value “5”. If you look at ASCII table, you will see that the character “5” is encoded as … Read more

[Solved] How to convert vb.net property to c#

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[ad_1] Here’s a valid C# implementation of the property. Note the lowercase value keyword. If you are using System.Drawing.Point, this is a struct, so you have no need for the is null check, as it has a default value. public Point Area { get { if (_Area == null) _Area = new Point(); return _Area; … Read more

[Solved] Decimal.ToUInt64 “Value was either too large or too small for a UInt64

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[ad_1] Problem: -5000m is a negative number, which is outside the range of UInt64 (an unsigned type). Solution: use Int64 instead of UInt64 if you want to cope with negative numbers. Note that you can just cast instead of calling Decimal.To…: long x = (long) (production – expense); Alternative: validate that the number is non-negative … Read more