大约有 48,000 项符合查询结果（耗时：0.0778秒） [XML]
C++ Structure Initialization
... Really bad idea: add one member to your address and you'll never know of all the places that create an address and now do not initialize your new member.
– mystery_doctor
May 7 '19 at 6:13
...
How to fix the datetime2 out-of-range conversion error using DbContext and SetInitializer?
...ime.MinValue (or equivalenly, default(DateTime)) is used to indicate an unknown value.
This simple extension method can help handle such situations:
public static class DbDateHelper
{
/// <summary>
/// Replaces any date before 01.01.1753 with a Nullable of
/// DateTime with a v...
Clear file cache to repeat performance testing
...hnique worked perfectly for me under Windows 8! Windows XP is 12 years old now, any reason you can't try this on Vista, Windows 7, or Windows 8?
– Jeff Atwood
Nov 13 '12 at 5:06
...
Collections.emptyList() returns a List?
...son(String name) {
this(name,Collections.<String>emptyList());
}
Now when you're doing straight assignment, the compiler can figure out the generic type parameters for you. It's called type inference. For example, if you did this:
public Person(String name) {
List<String> emptyL...
How to split a comma-separated value to columns
... fail!) or the really fast JSON-hack. For older version look for the well-known XML-hack (json and xml details here). Or look for one of the may iTVFs based on recursive CTEs.
– Shnugo
Nov 21 '19 at 10:35
...
Is there a valid reason for enforcing a maximum width of 80 characters in a code file, this day and
...rminals or on 80-column printouts. Those requirement have mostly gone away now, but there are still valid reasons to keep the 80 column rule:
To avoid wrapping when copying code into email, web pages, and books.
To view multiple source windows side-by-side or using a side-by-side diff viewer.
To i...
How can I search for a multiline pattern in a file?
...
Hmm tried this just now and didn't seem to work... gist.github.com/rdp/0286d91624930bd11d0169d6a6337c33
– rogerdpack
Dec 3 '18 at 17:22
...
How to cancel/abort jQuery AJAX request?
...ort? The data is sent to the server, and it is processed or not. We won't know... :S
– inf3rno
Jun 13 '13 at 14:38
7
...
How do I use regex in a SQLite query?
I'd like to use a regular expression in sqlite, but I don't know how.
17 Answers
17
...
How can I catch a ctrl-c event?
...rs in implementations. I would recommend using sigaction. Tom's code would now look like this :
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
void my_handler(int s){
printf("Caught signal %d\n",s);
exit(1);
}
int mai...