enums

问题 I'm trying to add a card into my Vect->Items card array, but I'm getting an access writing violation in my add at the Items array address. Is there something wrong with the initialization of the vector? The access writing violation occurs at the address of initialized vector, but I don't understand why it would be an error if it's just initializing. void VectorInit(Vector * vect, int capacity) { vect->size = 0; //initialize the size to 0 (no elements) vect->capacity = capacity; //initialize

问题 I develop a custom view in Android Studio. This custom view has a custom property. The possible values of this property are declared as an enum-formatted attr in a declare-stylable tag within a resources tag, all that in an xml file (see below). Even though there are quite some questions (including answers) about accessing xml-defined enums in this forum, none of those actually helps me in solving my concrete problem. From within the file customview_values.xml: <declare-styleable name=

问题 enum { ValidationLoginFailed=2000, ValidationSessionTokenExpired=2001, ValidationSessionTokenInvalid=2002, ValidationEmailNotFound=2003 ValidationSucccesMIN=ValidationLoginFailed, ValidationSucccesMAX=ValidationEmailNotFound, ValdationValidSuccessCode=9999, ValdationInvalidCode=10000 }; typedef int ValidationStatusCodes; please help me out. 回答1: In your code, ValidationStatusCodes means int , not your anonymous enum type. So they aren't actually connected in any way. However, since your enum

问题 I've got an issue about inserting an enum into a VARCHAR field. That's my enum: public enum StatusPesquisaEnum { ATENDIDO("A"), ESPERA("E"), EMATENDIMENTO("EA"), NAOATENDIDO("NA"); private StatusPesquisaEnum(String codigo){ this.codigo = codigo; } private final String codigo; public String getCodigo() { return codigo; } } I want to insert A , E , EA and NA into the database. Furthermore I've tried a converter: @Converter(autoApply = true) public class StatusPesquisaEnumConverter implements

问题 I've got an issue about inserting an enum into a VARCHAR field. That's my enum: public enum StatusPesquisaEnum { ATENDIDO("A"), ESPERA("E"), EMATENDIMENTO("EA"), NAOATENDIDO("NA"); private StatusPesquisaEnum(String codigo){ this.codigo = codigo; } private final String codigo; public String getCodigo() { return codigo; } } I want to insert A , E , EA and NA into the database. Furthermore I've tried a converter: @Converter(autoApply = true) public class StatusPesquisaEnumConverter implements

问题 How do I change a specific associated value of an enum enum Origin { case search(searchTerm: String, filtered: Bool) case category(categoryName:String, subcategoryName:String) } @objc class GameSession: NSObject { var gameOrigin: Origin? ... @objc func setIsSearchFiltered(filtered:Bool) { if (<gameOrigin is of type .search?>) { self.gameOrigin = <change "filtered" associated value to new value> } } .... } This question with answer, unfortunately, lately didn't help me. 回答1: You can only

问题 How do I change a specific associated value of an enum enum Origin { case search(searchTerm: String, filtered: Bool) case category(categoryName:String, subcategoryName:String) } @objc class GameSession: NSObject { var gameOrigin: Origin? ... @objc func setIsSearchFiltered(filtered:Bool) { if (<gameOrigin is of type .search?>) { self.gameOrigin = <change "filtered" associated value to new value> } } .... } This question with answer, unfortunately, lately didn't help me. 回答1: You can only

问题 I came from Java and here we have such option as set value to constuctor. Example enum TYPE { AUTO("BMW"), MOTOCYCLE("Kawasaki"); private String mBrandName = ""; TYPE(final String iBrandName) { mBrandName = iBrandName; } public String getBrandName() { return mBrandName; } static TYPE getMotocycle() { return MOTOCYCLE; } static TYPE getAuto() { return AUTO; } } Usage String motoBrand = TYPE.getMotocycle().getBrandName(); // == BMW String autoBrand = TYPE.getAuto().getBrandName(); // ==

问题 I'm trying to implement an enum in a entity called CargoWrapper. In my android app I'm constructing a CargoWrapper object to send to an endpoint method, and then calling my CargoWrapper setters to set the instance varialbes. One of CargoWrappers instance variables is an enum and it's indexed. The only methods generated for my front end are the setter and getters, I can't see the enum. Does anyone know how to set the enum instance variable from a android client, seems like it should be very

问题 I'm trying to implement an enum in a entity called CargoWrapper. In my android app I'm constructing a CargoWrapper object to send to an endpoint method, and then calling my CargoWrapper setters to set the instance varialbes. One of CargoWrappers instance variables is an enum and it's indexed. The only methods generated for my front end are the setter and getters, I can't see the enum. Does anyone know how to set the enum instance variable from a android client, seems like it should be very