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What is an application binary interface (ABI)?
... but the API does not, then the old and new library versions are sometimes called "source compatible". This implies that while a program compiled for one library version will not work with the other, source code written for one will work for the other if re-compiled.
For this reason, developers te...
Fetch the row which has the Max value for a column
...my_date column value is equal to the maximum value of my_date for that userid. This may retrieve multiple rows for the userid where the maximum date is on multiple rows.
select userid,
my_date,
...
from
(
select userid,
my_date,
...
max(my_date) over (partition by...
Why use the params keyword?
...
With params you can call your method like this:
addTwoEach(1, 2, 3, 4, 5);
Without params, you can’t.
Additionally, you can call the method with an array as a parameter in both cases:
addTwoEach(new int[] { 1, 2, 3, 4, 5 });
That is, pa...
When is a C++ destructor called?
Basic Question: when does a program call a class' destructor method in C++? I have been told that it is called whenever an object goes out of scope or is subjected to a delete
...
Escape quotes in JavaScript
...it's an HTML/XML encoding issue: you can't have double-quote characters inside an attributes value w/o escaping them... otherwise browsers/parsers think you're ending the attribute value declaration.
– Aaron
Aug 21 '10 at 7:09
...
how to set “camera position” for 3d plots using python/matplotlib?
...
+1 for calling out the hacky scalar multiplication. It's very annoying if you were hoping for perspective.
– user5920660
Sep 8 '17 at 2:16
...
How to start two threads at “exactly” the same time
...nt primitives. One useful type is the manual reset event returned when you call CreateEvent. msdn.microsoft.com/en-us/library/ms686364%28VS.85%29.aspx
– ChaosPandion
Jul 31 '10 at 3:27
...
Entity Framework DateTime and UTC
...eTimeKind.Utc);
}
// you need to fill all overrides. Just call the same method on source in all cases
public new void Dispose()
{
source.Dispose();
}
public new IDataReader GetData(int ordinal)
{
return source.GetData(ordinal);
}
}
Registe...
LoadRunner中参数化技术详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ique Number
唯一值来代替参数
7
Vuser ID
LoadRunner使用该虚拟用户的ID来代替参数值，该ID是由Controller来控制的，在VuGen中运行脚本时，该值为-1.
8
DataFile/Table
可以在属性设置中编辑...
Why are there two kinds of functions in Elixir?
... functions in this hello/1 syntax.
This is also why Elixir uses a dot for calling anonymous functions. Since you can't simply pass hello around as a function, instead you need to explicitly capture it, there is a natural distinction between named and anonymous functions and a distinct syntax for ca...