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将Linux代码移植到Windows的简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...定义基本上解决了大部分的头文件包含问题。
/* Define if you have the <linux/fd.h> header file. */
/* #undef HAVE_LINUX_FD_H */
/* Define if you have the <locale.h> header file. */
#define HAVE_LOCALE_H 1
/* Define if you have the <malloc.h> header file. */
#define HAVE_...
Best way to create an empty map in Java
...
1) If the Map can be immutable:
Collections.emptyMap()
// or, in some cases:
Collections.<String, String>emptyMap()
You'll have to use the latter sometimes when the compiler cannot automatically figure out what kind of...
Better techniques for trimming leading zeros in SQL Server?
...you parse a zero ('0'), you get a blank. You need to be able to tell the difference between a '0' value and a blank value. Please see my post for a full solution: stackoverflow.com/a/21805081/555798
– MikeTeeVee
Feb 17 '14 at 18:15
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Why does Boolean.ToString output “True” and not “true”
...String() method:
Return Value
Type: System.String
TrueString if the value of this
instance is true, or FalseString if
the value of this instance is false.
Remarks
This method returns the
constants "True" or "False". Note that
XML is case-sensitive, and that the
XML...
Including one C source file in another?
... lines, a hundred or so private functions and quite a bit of private data. If you work with non-trivial embedded systems, you probably deal with this situation frequently enough.
Your solution will probably be layered, modular and decoupled and these aspects can be usefully represented and reinforc...
Take the content of a list and append it to another list
I am trying to understand if it makes sense to take the content of a list and append it to another list.
7 Answers
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MVC which submit button has been pressed
...t);
return View();
}
You can of course assess that value to perform different operations with a switch block.
public ActionResult Index(string submit)
{
switch (submit)
{
case "Save":
// Do something
break;
case "Process":
// Do some...
Best way to get identity of inserted row?
...T_CURRENT('tableName') returns the last identity value generated for a specific table in any session and any scope. This lets you specify which table you want the value from, in case the two above aren't quite what you need (very rare). Also, as @Guy Starbuck mentioned, "You could use this if you ...
How to force 'cp' to overwrite directory instead of creating another one inside?
...-- foo
|-- a
`-- b
2 directories, 4 files
You can see the clear difference when you use -v for Verbose.
When you use just -R option.
$ cp -Rv foo/ bar/
`foo/' -> `bar/foo'
`foo/b' -> `bar/foo/b'
`foo/a' -> `bar/foo/a'
$ tree
|-- bar
| |-- a
| |-- b
| `-- foo
| |...
Invoking JavaScript code in an iframe from the parent page
Basically, I have an iframe embedded in a page and the iframe has some JavaScript routines I need to invoke from the parent page.
...
