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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...->p的偏移之所以是0x8而不是0x6,是因为内存对齐了(我在64位系统上)。关于内存对齐,可参看《深入理解C语言》一文。
好了,现在你知道为什么原题中会访问到了0x4的地址了吧,因为是相对地址。
相对地址有很好多处,其...
How to sort a dataframe by multiple column(s)
... Easy enough: dd[ order(-dd[,4], dd[,1]), ], but can't use with for name-based subsetting.
– Dirk Eddelbuettel
Oct 21 '12 at 14:34
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Client to send SOAP request and receive response
...etworkCredential(username, password, domain);
– Data-Base
Jan 25 '11 at 10:22
3
@hamish: this is ...
AWS MySQL RDS vs AWS DynamoDB [closed]
...r while MySQL is used for relational storage. You should pick what to use based on the actual needs of your application. In fact, some applications might be well served by using both.
If, for example, you are storing data that does not lend itself well to a relational schema (tree structures, sche...
How to know what the 'errno' means?
...
For reference, here is a list from Ubuntu 14.04 amd64 pastebin.com/407gDBPq
– kevinf
Aug 8 '14 at 18:31
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How do I return multiple values from a function? [closed]
...ples": it's also more readable and less error prone as you access the data based on its name rather than position.
– Denis Dollfus
Jan 16 at 13:09
add a comment
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Chrome Dev Tools - “Size” vs “Content”
...ritten as KB. It would be better if they reported it either in ISO format (base 10) or write it as KiB/MiB.
– okdewit
Jun 15 '16 at 13:43
1
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Why would you ever implement finalize()?
...I inherited the code and it was very buggy and had a tendency to leave database connections open. We modified the connections to contain data about when and where they were created and then implemented finalize to log this information if the connection wasn't closed properly. It turned out to be a...
Way to ng-repeat defined number of times instead of repeating over array?
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@sh0ber. When I need to change the list items based on the value selected in number dropdown. I tried your function first, when it is not working, I changed it to above to update the no. of list items when different number is selected in the dropdown. Can you please chec...
Changing navigation bar color in Swift
...e one reference throughout your whole app for each colour and it'll update based on the user's selected "Theme" and without one it defaults to theme1():
import Foundation
import UIKit
struct Style {
static let availableThemes = ["Theme 1","Theme 2","Theme 3"]
static func loadTheme(){
let de...