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What does -D_XOPEN_SOURCE do/mean?
...le without this arg. I checked the gcc man page, but did not find this specific option. I did find XOPEN_SOURCE , but there was little explanation of what it does.
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wget/curl large file from google drive
... This one worked in July 2018! Remember to share the file and if you have the link as drive.google.com/open?id=FILE_ID just replace "open" with "uc" and simply gdown drive.google.com/uc?id=FILE_ID
– simo23
Jul 25 '18 at 15:18
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Using mixins vs components for code reuse in Facebook React
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Update: this answer is outdated. Stay away from the mixins if you can.
I warned you!
Mixins Are Dead. Long Live Composition
At first, I tried to use subcomponents for this and extract FormWidget and InputWidget. However, I abandoned this approach halfway because I wanted a be...
How do I remove duplicate items from an array in Perl?
...filtered = uniq(@array);
print "@filtered\n";
Outputs:
one two three
If you want to use a module, try the uniq function from List::MoreUtils
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What is the difference between Python's list methods append and extend?
What's the difference between the list methods append() and extend() ?
20 Answers
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Remove local git tags that are no longer on the remote repository
... This must be my favourite git answer on StackOverflow. It combines knowledge, simplicity and trickery an explains everything. Great
– tymtam
Nov 30 '11 at 8:12
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VS Debug调试模式下内存泄露检测原理 - C/C++ - 清泛网 - 专注C/C++及内核技术
...T宏定义了malloc、realloc，如下：
#define malloc(s) _malloc_dbg(s, _NORMAL_BLOCK, __FILE__, __LINE__)
#define calloc(c, s) _calloc_dbg(c, s, _NORMAL_BLOCK, __FILE__, __LINE__)
#define realloc(p, s) _realloc_dbg(p, s, _NORMAL_BLOCK, __FILE__, __LINE__)
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Hidden features of Ruby
Continuing the "Hidden features of ..." meme, let's share the lesser-known but useful features of Ruby programming language.
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The best way to remove duplicate values from NSMutableArray in Objective-C?
...ded NSOrderedSet to iOS 5 and Mac OS X 10.7. What had been an algorithm is now two lines of code:
NSOrderedSet *orderedSet = [NSOrderedSet orderedSetWithArray:yourArray];
NSArray *arrayWithoutDuplicates = [orderedSet array];
If you are worried about the order and you're running on iOS 4 or earl...
How do I check if there are duplicates in a flat list?
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Use set() to remove duplicates if all values are hashable:
>>> your_list = ['one', 'two', 'one']
>>> len(your_list) != len(set(your_list))
True
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