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How do I determine whether an array contains a particular value in Java?
...t this is still better then "rolling your own" and easier to read then the raw java way.
– Jason
Dec 7 '12 at 17:48
2
...
What is causing this ActiveRecord::ReadOnlyRecord error?
...ork around.
Using find_by_sql is not really an alternative as it returns raw row/column data, not ActiveRecords. You have two options:
Force the instance variable @readonly to false in the record (hack)
Use :include => :card instead of :join => :card
Rails 2.3.4 and above
Most of the a...
How to easily resize/optimize an image size with iOS?
...e:(CGSize)newSize;
{
UIGraphicsBeginImageContext( newSize );
[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
As far as storage of the image, the fastest...
In what cases do I use malloc and/or new?
...ew and delete). What is the motivation for using new/delete for blocks of raw memory?
– Ben Supnik
Feb 11 '10 at 20:35
3
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How are zlib, gzip and zip related? What do they have in common and how are they different?
...s of wrapping around the deflate streams. Those are: no wrapping at all ("raw" deflate), zlib wrapping, which is used in the PNG format data blocks, and gzip wrapping, to provide gzip routines for the programmer. The main difference between zlib and gzip wrapping is that the zlib wrapping is more ...
HTTP status code for update and delete?
...
Updated version of the image is here: raw.github.com/for-GET/http-decision-diagram/master/httpdd.png
– zaius
Nov 5 '13 at 20:09
21
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...。
4. 进程的系统调用记数统计
bpftrace -e 'tracepoint:raw_syscalls:sys_enter { @[comm] = count(); }'
Attaching 1 probe...
^C
@[bpftrace]: 6
@[systemd]: 24
@[snmp-pass]: 96
@[sshd]: 125
按Ctrl-C后打印进程的系统调用计数。
@: 表示一种特殊的变量...
How to perform Callbacks in Objective-C
...ere's an example that keeps the concepts of delegates out, and just does a raw call back.
@interface Foo : NSObject {
}
- (void)doSomethingAndNotifyObject:(id)object withSelector:(SEL)selector;
@end
@interface Bar : NSObject {
}
@end
@implementation Foo
- (void)doSomethingAndNotifyObject:(id)obje...
How to insert a line break in a SQL Server VARCHAR/NVARCHAR string
... In other words, the syntax of the SQL language simply allows raw line feeds in strings literals. It works this way in all engines I've tried (SQL Server, Oracle, MySQL, PostgreSQL and SQLite).
– Álvaro González
Feb 13 '14 at 15:32
...
Bulk insert with SQLAlchemy ORM
...em directly, we can produce an INSERT that is
competitive with using the raw database API directly.
Alternatively, the SQLAlchemy ORM offers the Bulk Operations suite of
methods, which provide hooks into subsections of the unit of work
process in order to emit Core-level INSERT and UPDATE...