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Iterator invalidation rules
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vector: The functions insert, emplace_back, emplace, push_back cause reallocation if the new size is greater than the old capacity. Reallocation invalidates all the references, pointers, and iterators referring to the elements in the sequence. If no reallocation
happens, all the iterators and re...
Request failed: unacceptable content-type: text/html using AFNetworking 2.0
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For PHP it's as easy as adding this to the page: header("Content-Type: application/json"); (unless it's not a JSON response, then XML or something)
– rckehoe
Dec 6 '13 at 15:02
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...制数据
【数据库】LeanDB 数据库扩展
【数据库】MySQL + php后端数据库
【数据库】MongoDB + php后端数据库
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Find lines from a file which are not present in another file [duplicate]
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This allocated like 15GB of memory for me for a couple files each < 300 MB...
– user541686
Jan 13 '19 at 17:04
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How to escape double quotes in a title attribute
...te (for javascript to produce editable textarea): data-editable-note="<?php echo str_replace('"', '&quot;', $note); ?>"><?php echo mark::up($note); ?></div>
– WEBjuju
Sep 23 '19 at 13:05
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One-liner to recursively list directories in Ruby?
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In PHP or other languages to get the content of a directory and all its subdirectories, you have to write some lines of code, but in Ruby it takes 2 lines:
require 'find'
Find.find('./') do |f| p f end
this will print the con...
How to download a file from server using SSH? [closed]
...ote/dir/foobar.txt /local/dir
From: http://www.hypexr.org/linux_scp_help.php
share
edited Mar 14 '15 at 9:31
Marek Grzenkowicz
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How expensive is RTTI?
...;typeid()
5) 14,261,000 Ticks (~23 Seconds) - typeid() with extra variable allocations.
So the conclusion would be:
For simple cast cases without optimisation typeid() is more than twice faster than dyncamic_cast.
On a modern machine the difference between the two is about 1 nanosecond (a milliont...
How to declare strings in C [duplicate]
... your third example which is bad), the different between 1 and 2 is that 1 allocates space for a pointer to the array.
But in the code, you can manipulate them as pointers all the same -- only thing, you cannot reallocate the second.
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Does java.util.List.isEmpty() check if the list itself is null? [duplicate]
...I deleted my stupid comment, before I saw your answer. Maybe he comes from PHP where we have !empty($foo) as somewhat an alias for isset($foo) && $foo != "".
– Aufziehvogel
Jul 16 '12 at 20:39
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