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Iterating C++ vector from the end to the beginning
...tor 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 first, and you are done when you reach begin() — ...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
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I'm usually a Perl fan, but came across this ruby example which has the benefit of being shorter: ruby -e 'puts STDIN.readlines.shuffle'. It would need testing on big inputs to see if the speed is comparable. (also works on OS X)
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How to export data as CSV format from SQL Server using sqlcmd?
...th '""' + col1 + '""' AS col1, wrapped in (doubled) double quotes or just call a stored procedure.
– MisterIsaak
Dec 11 '13 at 17:17
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Coding Practices which enable the compiler/optimizer to make a faster program
...ents! This can be a huge help for getting around aliasing slowdowns. For example, if your code looks like
void DoSomething(const Foo& foo1, const Foo* foo2, int numFoo, Foo& barOut)
{
for (int i=0; i<numFoo, i++)
{
barOut.munge(foo1, foo2[i]);
}
}
the compiler does...
Doing HTTP requests FROM Laravel to an external API
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We can use package Guzzle in Laravel, it is a PHP HTTP client to send HTTP requests.
You can install Guzzle through composer
composer require guzzlehttp/guzzle:~6.0
Or you can specify Guzzle as a dependency in your project's existing composer.json
{
"require": {
...
Getting the last argument passed to a shell script
...the last arg that was given was, instead of simply "the last value". For example!: if you provide one single argument, then you call shift, ${@:$#} will produce nothing (because you shifted out the one and only argument!), however, BASH_ARGV will still give you that (formerly) last argument.
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How to evaluate http response codes from bash/shell script?
...e final request status if the result of the first request is a 3XX. For example if the returned value is a 301 redirect, then this script just stops there. If you add -IL, then you can get the final status. If you want to show all HTTP statuses for all requests, use my example below.
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How to get the number of characters in a std::string?
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Your examples just use ASCII. Would you mind updating it for Unicode characters as well? Especially the 32 bit ones such as ????
– Thomas Weller
May 17 '18 at 9:50
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Core pool size vs maximum pool size in ThreadPoolExecutor
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You just copied it from here bigsoft.co.uk/blog/index.php/2009/11/27/…
– Kumar Manish
Aug 2 '15 at 9:55
1
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Calling C/C++ from Python?
...e Boost Python Library is a framework for interfacing Python and
C++. It allows you to quickly and seamlessly expose C++ classes
functions and objects to Python, and vice-versa, using no special
tools -- just your C++ compiler. It is designed to wrap C++ interfaces
non-intrusively, so that y...