default-value

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Mathematica: set default value for argument to nonconstant?

Can I set the default value for a function argument to be something that\'s not constant? Example: tod := Mod[AbsoluteT开发者_如何转开发ime[], 86400][详细]

2023-02-04 04:35 分类：问答
What is the best method to store default values in database?

I have several tables like Buyers, Shops, Brands, Money_Collectors, e.t.c. Each one of those has a default value, e.g. the default Buyer is David, the default Shop is Ebay, and so on.[详细]

2023-02-04 00:35 分类：问答
Using class variable as non-default argument in python

is there a way to keep a private class variable within the class and still use it as the default value to a non-default variable (without defining that value before, outside of the class)?[详细]

2023-02-03 11:00 分类：问答
In Python, can I specify a function argument's default in terms of other arguments?

Suppose I have a python function that takes two arguments, but I want the second arg to be optional, with the default being whatever was passed as the first argument. So, I want to do something like t[详细]

2023-02-02 04:44 分类：问答
Equivalent of default(T) using reflection [duplicate]

This question already has answers here: Closed 12 years ago. Possible Duplicate: C# - Programmatic equivalent of default(Type)[详细]

2023-02-01 23:33 分类：问答
Nonstatic member as a default argument of a nonstatic member function [duplicate]

This question already has answers here: 开发者_开发问答 How to use a member variable as a default argument in C++?[详细]

2023-02-01 13:53 分类：问答
Can I specify a default Color parameter in C# 4.0?

Here is an example function: public void DrawSquare(int x, int y, Color boxColor = Color.Black) { //Code to draw the square goes here[详细]

2023-01-31 07:07 分类：问答
Strange error c2660 "function does not take 1 arguments"

My base class has this function LRESULT CBaseClass::OnTestFunction(WPARAM id, LPARAM=0) { ... } Wh开发者_StackOverflow中文版en the derived class calls this function[详细]

2023-01-30 17:37 分类：问答
Why variables start out with random values in C

I thin开发者_JS百科k this is wrong, it should start as NULL and not with a random value. In the case that you have a pointer with a random memory address as its default value it could be a very danger[详细]

2023-01-30 15:46 分类：问答
cakephp default values only using first character

I\'m creating a cakephp app with a form that has generated default values (right now it\'s only placeholder data until this gets resolved) which get thrown into a table.The form works, it inserts the[详细]

2023-01-29 22:15 分类：问答