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What makes Lisp macros so special?
...DSLs). These languages are embedded right into the existing Lisp code. Now, the DSLs can have syntax similar to Lisp (like Peter Norvig's Prolog Interpreter for Common Lisp) or completely different (e.g. Infix Notation Math for Clojure).
Here is a more concrete example:Python has list compreh...
Clang vs GCC - which produces faster binaries? [closed]
...rtain)
comprises at present around 11K LOC in about 90 files. It is coded,
now, in C++ that is rich in polymorphism and templates and but is still
mired in many patches by its not-so-distant past in hacked-together C.
Move semantics are not expressly exploited. It is single-threaded. I
have devoted ...
Mathematical functions in Swift
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@noilly: kinda late now, you have to set the file type to iOS in the Playground's file properties (Cmd-Opt-0), or import UIKit instead, per above comment
– Chris Conover
Sep 29 '14 at 21:35
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Private pages for a private Github repo
...hub and got a response confirming the fact that ALL pages are public. I've now requested them to add a note to help.github.com/pages.
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HEAD and ORIG_HEAD in Git
... possibly dangerous behavior, to be easy to revert them. It is less useful now that Git has reflog: HEAD@{1} is roughly equivalent to ORIG_HEAD (HEAD@{1} is always last value of HEAD, ORIG_HEAD is last value of HEAD before dangerous operation).
For more information read git(1) manpage, Git User's M...
Error: Could not find or load main class in intelliJ IDE
...and then followed the steps mentioned by @Kishore over here. It is working now.
– Sunny Shekhar
Nov 26 '19 at 5:14
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Are soft deletes a good idea? [duplicate]
...of just-added data, of course).
Second, a soft delete like this means you now have to include a WHERE IsDeleted = false clause in every query on this table (and so much worse if you're JOINing these tables). A mistake here would be caught as soon as a user or tester noticed a deleted record showin...
Issue pushing new code in Github
I created a new repository on Github which has only Readme.md file now.
14 Answers
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Where in memory are my variables stored in C?
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For those future visitors who may be interested in knowing about those memory segments, I am writing important points about 5 memory segments in C:
Some heads up:
Whenever a C program is executed some memory is allocated in the RAM for the program execution. This memory is ...
Rspec doesn't see my model Class. uninitialized constant error
... versions of RSpec move some stuff out of the spec/spec_helper.rb file, so now you also get a spec/rails_helper.rb file. If you run rails generate rspec:install, this is what it produces (rspec-rails 3.0.1, rails 4.1.1). Turns out the rails_helper.rb file contains some similar code to yours and shou...