When comparing CLion vs SlickEdit, the Slant community recommends CLion for most people. In the question“What are the best IDEs for C++ on UNIX-like systems?” CLion is ranked 5th while SlickEdit is ranked 19th. The most important reason people chose CLion is:
CLion has an intelligent autocompletion engine that tries to predict the symbol you are typing based on your previous history and the context in which it's being typed.
Specs
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Pros
Pro Intelligent code completion
CLion has an intelligent autocompletion engine that tries to predict the symbol you are typing based on your previous history and the context in which it's being typed.
Pro Cross platform
Clion works on Windows, Linux and OSX.
Pro Extensive support for programming languages
SlickEdit supports over 50 programming languages on nine platforms.
Pro Built-in beautifier
The beautifier formats code as you type to help improve readability and consistency.
Pro Compiler tools
Pro Scriptable
Write custom macro commands, functions, dialogs and tool windows.
Pro Over 13 emulations
Choose from fifteen keyboard emulations, containing the key bindings and behaviors necessary to emulate other editors (e.g., CUA, Vim, GNU Emacs, etc.)
Pro Extensive configuration options
Pro Easy access to Visual Studio workspace
SlickEdit opens Visual Studio workspace with no conversions needed.
Pro Symbol analysis support
There are powerful symbol analysis features in SlickEdit, including context tagging and references.
Pro Integrated debuggers for multiple languages
Integrated debuggers for GNU C++, Java, Python, Perl, Ruby, and PHP.
Pro Multi-Platform
Windows, Linux, Mac OS X, AIX, HP-UX, Solaris SPARC, Solaris x86
Pro Portable mode
Possibility to set up a portable installation, to run on a USB drive for example.
Pro Easy access to XCode projects
SlickEdit opens XCode projects with no conversions needed.
Pro Third party tool integration
Pro Popular version control system
Cons
Con Proprietary
Clion is proprietary software which costs $199/1st year for a business license or $89/1st year for an individual license.
Con Build Tool Integration is messy/over complicated
I have a Jetbrains annual subscription so I can use this tool for free and I've used the Java IDE for years so I really want to like CLion. But it's just over complex to add 3rd party libraries etc. Netbeans/Eclipse etc are much better integrated with the build tools
Con No command line option
This is a visual only editor
Con It's kinda slow
If you have a very large project or tag database, it can hang the UI.