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Iterating C++ vector from the end to the beginning
...t purpose. (And yes, incrementing a reverse_interator moves it backward.)
Now, in theory, your method (using begin()/end() & --i) would work, std::vector's iterator being bidirectional, but remember, end() isn't the last element — it's one beyond the last element, so you'd have to decrement f...
Why use prefixes on member variables in C++ classes
... to nul-terminated char arrays, and it's not really all that difficult to know that "customerName" is a string!
However, I do use prefixes to specify the usage of a variable (essentially "Apps Hungarian", although I prefer to avoid the term Hungarian due to it having a bad and unfair association wi...
List of installed gems?
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The Gem command is included with Ruby 1.9+ now, and is a standard addition to Ruby pre-1.9.
require 'rubygems'
name = /^/i
dep = Gem::Dependency.new(name, Gem::Requirement.default)
specs = Gem.source_index.search(dep)
puts specs[0..5].map{ |s| "#{s.name} #{s.version...
How to resume Fragment from BackStack if exists
...ame())){
setTitle ("C");
//set selected item position, etc
}
}
Now, whenever the back stack changes, the title and checked position will reflect the visible Fragment.
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Learning Regular Expressions [closed]
... to what you might think of as cautious, add an extra ? to the quantifier. Now you understand how \((.+?)\), the example from your question works. It matches the sequence of a literal left-parenthesis, followed by one or more characters, and terminated by a right-parenthesis.
If your input is '(123...
Multiple file upload in php
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I know this is an old post but some further explanation might be useful for someone trying to upload multiple files... Here is what you need to do:
Input name must be be defined as an array i.e.
name="inputName[]"
Input elemen...
.Net picking wrong referenced assembly version
...nd those dlls could be hanging on to old references. It's worth a shot, I know it's worked for me in the past.
– Chris Conway
Nov 16 '10 at 1:47
1
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brew install gcc too time consuming
...s GCC as a dependency, and I've had the XCode CLT installed for five years now. Brew still opts to build GCC from scratch (and its taken over an hour now).
– hyperum
Feb 10 '19 at 7:57
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Java - escape string to prevent SQL injection
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@Kaleb Brasee, thanks. That's good to know. The tools are different in every environment, but getting down to parameterized queries is the fundamental answer.
– Cylon Cat
Nov 28 '09 at 17:01
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Should I use int or Int32
... is important (cryptographic code, structures) so future maintainers will know it's safe to enlarge an int if appropriate, but should take care changing Int32s in the same way.
The resulting code will be identical: the difference is purely one of readability or code appearance.
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