[Solved] error: ISO C++ forbids declaration of `__nomain’ with no type

It says, that in a hosted environment, main should have a type. Quote from C++ standard 3.6.1, paragraph 2 An implementation shall not predefine the main function. This function shall not be overloaded. It shall have a return type of type int, but otherwise its type is implementation-defined. All implementations shall allow both — a … Read more

[Solved] How to deserialize JSON in C# [closed]

class Employer { [JsonProperty(“nome”)] public string Nome { get; set; } [JsonProperty(“id”)] public string Id { get; set; } [JsonProperty(“setor”)] public string Setor { get; set; } } class Employers : List<Employer> { } Employers employers = JObject.Parse(json)[“result”][“employers”].ToObject<Employers>(); 1 solved How to deserialize JSON in C# [closed]

[Solved] Translate to LINQ [closed]

Try this: return ( from div in strExport.Split(chrDivSep) from item in div.Split(chrItemSep) where String.Equals(item.Split(chrCoupleSep)[0], “table”, StringComparison.OrdinalIgnoreCase) ).Any(); solved Translate to LINQ [closed]

[Solved] In c++, why is cout is so important?

Method 2: Just change the position of: int num[n]; #include using namespace std; int main(int argc, const char * argv[]) { // method 1: int n; cout << “Enter a set of integers: “<< endl; cin >> n; int num[n]; for (int i = 0; i < n; i++) { cin >> num[i]; } cout … Read more

[Solved] C++ How to fill a char* array of strings with new values using c_str() on top of old ones [duplicate]

I try to copy the string into the array of string literals What you are trying to do isn’t legal C++. char* MapIds[5000] = … should be const char* MapIds[5000] = … and trying to overwrite anything in that array makes your program have undefined behavior. I try to stay away from std::string and instead … Read more

[Solved] How do I find a substring in a string? [closed]

Contains is too slow for large numbers of data, plus it matches the domain and the in-the-middle occurences as well. So use StartsWith System.Data.DataTable dt = //Whatever foreach(System.Data.DataRow dr in dt.Rows) { //string email = dr(“email”); string email = “[email protected]”; if (email != null && email.StartsWith(“companyby”, StringComparison.OrdinalIgnoreCase)) { // do whatever here } } With … Read more