大约有 16,317 项符合查询结果（耗时：0.0558秒） [XML]
In C++, if throw is an expression, what is its type?
I picked this up in one of my brief forays to reddit:
4 Answers
4
...
The role of #ifdef and #ifndef
...
Text inside an ifdef/endif or ifndef/endif pair will be left in or removed by the pre-processor depending on the condition. ifdef means "if the following is defined" while ifndef means "if the following is not defined".
So:
#define one 0
#ifdef one
printf("one is defined ");
#endif
#ifnd...
Where should Rails 3 custom validators be stored?
I've seen docs/websites show that custom validators should go in a /lib or /lib/validators directory of a project. I've found (by reading an answer to another post) that they only seem to work in config/initializers . Does anyone know, or have a pointer to official documentation that shows wher...
What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?
What is the difference between Directory.EnumerateFiles vs GetFiles ?
3 Answers
3
...
How to pass parameters to a partial view in ASP.NET MVC?
...
Use this overload (RenderPartialExtensions.RenderPartial on MSDN):
public static void RenderPartial(
this HtmlHelper htmlHelper,
string partialViewName,
Object model
)
so:
@{Html.RenderPartial(
"FullName",
new { firstName = model.FirstName, lastName = model.Las...
Can we have multiple “WITH AS” in single sql - Oracle SQL
I had a very simple question: Does oracle allow multiple "WITH AS" in a single sql statement.
4 Answers
...
How to get a enum value from string in C#?
I have an enum:
6 Answers
6
...
Getting value of public static final field/property of a class in Java via reflection
...ou can retrieve the value. If you know the type you can use one of the get methods with null (for static fields only, in fact with a static field the argument passed to the get method is ignored entirely). Otherwise you can use getType and write an appropriate switch as below:
Field f = R.class.get...
How to get a reference to a module inside the module itself?
How can I get a reference to a module from within that module? Also, how can I get a reference to the package containing that module?
...
JPQL IN clause: Java-Arrays (or Lists, Sets…)?
I would like to load all objects that have a textual tag set to any of a small but arbitrary number of values from our database. The logical way to go about this in SQL would be to build an "IN" clause. JPQL allows for IN, but it seems to require me to specify every single parameter to IN directly (...