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Objective-C: Property / instance variable in category

As I cannot create a synthesized property in a Category in Objective-C, I do not know how to optimize the following code: 6...
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`date` command on OS X doesn't have ISO 8601 `-I` option?

In a Bash script, I want to print the current datetime in ISO 8601 format (preferably UTC), and it seems that this should be as simple as date -I : ...
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#pragma once vs include guards? [duplicate]

I'm working on a codebase that is known to only run on windows and be compiled under Visual Studio (it integrates tightly with excel so it's not going anywhere). I'm wondering if I should go with the traditional include guards or use #pragma once for our code. I would think letting the compiler de...
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Google Maps: How to create a custom InfoWindow?

The default Google Maps InfoWindow for a map marker is very round. How do I create a custom InfoWindow with square corners? ...
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How to find gaps in sequential numbering in mysql?

We have a database with a table whose values were imported from another system. There is an auto-increment column, and there are no duplicate values, but there are missing values. For example, running this query: ...
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Converting unix timestamp string to readable date

I have a string representing a unix timestamp (i.e. "1284101485") in Python, and I'd like to convert it to a readable date. When I use time.strftime , I get a TypeError : ...
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make arrayList.toArray() return more specific types

So, normally ArrayList.toArray() would return a type of Object[] ....but supposed it's an Arraylist of object Custom , how do I make toArray() to return a type of Custom[] rather than Object[] ? ...
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SEH stack 结构探索(1)--- 从 SEH 链的最底层(线程第1个SEH结构)说起 -...

SEH stack 结构探索(1)--- 从 SEH 链的最底层(线程第1个SEH结构)说起线程的第 1 个 SEH 结构是什么时候构建的,我在线程启动例程找到答案:ntdll32!_RtlUserThreadStart()里。0:000:x86> uf ntdll32!_Rt...线程的第 1 个 SEH 结构是什么时候构建...
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Rename MySQL database [duplicate]

I created a database with the name of hrms . Now I need to change database name to sunhrm . But, It is disabled in MySQL workbench. Can I do that on the Linux server itself? ...
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How to search a specific value in all tables (PostgreSQL)?

Is it possible to search every column of every table for a particular value in PostgreSQL? 8 Answers ...