constants

问题 I want to define an array variable to have a variable number of elements depending on the m number of results returned from a search. I get an error "Constant Expression Required" on: Dim cmodels(0 To m) As String Here is my complete code Dim foundRange As Range Dim rangeToSearch As Range Set rangeToSearch = Selection Set foundRange = rangeToSearch.Find(What:="Lights", After:=ActiveCell, LookIn:=xlValues, LookAt:= _ xlPart, SearchOrder:=xlByRows, SearchDirection:=xlNext, MatchCase:=False _ ,

问题 I work on remote project and found interesting record in log: 2015-12-26 00:28:30,835 DEBUG org.hibernate.tool.hbm2ddl.SchemaUpdate Caller+0 at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:251) => alter table bail add column monthName tinyblob with logging set to: <logger level="trace" name="org.hibernate.tool.hbm2ddl"/> when try to identify what happen to: <prop key="hibernate.hbm2ddl.auto">update</prop> on first run from backup. When I have seen Bail.java source I am

问题 How to declare a constant array in class with constant class variable? Is it possible. I don't want dynamic array. I mean something like this: class test { const int size; int array[size]; public: test():size(50) {} } int main() { test t(500); return 0; } the above code gives errors 回答1: No, it's not possible: As long as size is a dynamic variable, array[size] cannot possibly be implemented as a static array. If you like, think about it this way: sizeof(test) must be known at compile time (e

问题 How do I access constants defined in common js file into template of different module. if I have defined a constant like this in my MainModule.js which is included in the beginning of the main html file > var myApp = angular.module('AC' .....); > myApp.constant('timeoutValue',5); I was able to access my constant in my controller.js by passing "timeoutValue" to it. But I am unable to access it in my template.html/partial. How can I access "timeoutValue" in my template.html/partial file 回答1:

问题 Consider the example below. Class a has private const SOMETHING , but class b has protected const SOMETHING . class a { private const SOMETHING = 'This is a!'; public static function outputSomething() { return static::SOMETHING ?? self::SOMETHING; } } class b extends a { protected const SOMETHING = 'This is b!'; } echo (new b())::outputSomething(); Output: This is b! But now if I comment out the definition for SOMETHING in class b, an error is thrown: class a { private const SOMETHING = 'This

问题 I'm using the pdCurses library and am aiming to only really use strings in my C++ console game but the curses mvinstr() function or any insert function requires a non-const char * as a parameter. My solution at first to this problem was simply entering in string.c_str() , but that returns a const char * which apparently doesn't work with the function. Next I put (char *)string.c_str() but this only causes an unhandled exception. Finally I just tried char *test = string.c_str() but that's not

问题 One of my projects has a value type/struct that represents a custom identifier string for a video format. In this case, it's going to contain a content type string, but that can vary. I've used a struct so it can be strongly type when it's passed around, and perform some sanity checks on the initial string value. public struct VideoFormat { private string contentType; public VideoFormat(string contentType) { this.contentType = contentType; } public string ContentType { get { return this

问题 In the following two examples I do the same thing, creating a constant String and using the concat method to modify it. Because it's a constant, I expect a compiler warning but only receive one in the second example when I use the assignment operator. Why is this? X = "hello" X.concat(" world") puts X # no warning X = "hello" X = X.concat(" world") puts X # warning: already initialized Since the concat method modifies the string in place, that's normally what I would do, since there's no need

问题 Some functions requires the input to be a constant, when run in Matlab Coder. I wish to find a way to declare the input as a constant before it is input as an example for the problematic situation: function foo = subsubfunction(x,y) [B,A]=butter(1,x/y); This will return the error 'All inputs must be constant' How do I declare x and y as constants so that butter() gets happy? I have tried many solutions and unfortunately not found anything really satisfying. If the command line operation coder

问题 I want to define global array constant code in bootstrap.php $adv_types = array('top' => 'Верх', 'left' => 'Левое', 'right' => 'Правое', 'bottom' => 'Нижнее'); code in view file echo $form->input('Adv.type', array('type' => 'select', 'option' => $adv_types, 'label' => 'Место рекламы')); but cakephp gives error: "Undefined variable: adv_types" 回答1: These need to set in your app_controller.php, and then passed to your views // app_controller.php class AppController extends Controller { var $adv