When comparing C++ vs C#, the Slant community recommends C# for most people. In the question“What are the best languages to develop mobile games?” C# is ranked 2nd while C++ is ranked 4th. The most important reason people chose C# is:
The Visual Studio IDE offers one of the best development environments. The [Community Edition](https://visualstudio.microsoft.com/vs/community/) can be used for free.
Ranked in these QuestionsQuestion Ranking
Pro Huge language supports most everything
C++ is a large language with an even larger community and following. It has libraries for every kind of task that is possible to do with C++
Pro Powerful memory management
Allows puting large arrays on the "heap" to avoid "stack overflow".
Pro Teaches fundamental OOP
Teaches you to leverage object oriented programming.
Pro Excellent compiler optimization
Both open source compilers (such as Clang and GCC), and proprietary ones (like Intel's and Microsoft's) are very good at analyzing program flow and program optimization. This is mostly due to the widespread usage of C/C++ applications running everything from mobile/desktop/server Operating Systems, to search engines and webserver software, and the demand for performance.
Pro Teaches problem solving
The great STL is the most powerful Data Structure and Algorithms Library. It would benefit you very much in problem solving, your main main way to love programming. The code is much compact compared to Java and C#. No unnecessary classes are in your way; yet when you need classes they are available unlike C. The code runs very fast.
Pro C code can be used in C++ code
Most C code will work as C++.
Pro Teaches low-level programming, but doesn't have as many pitfalls as C
Teaches data types, low-level program flow and the so common C-style syntax while not being as much of a pain as C itself.
Pro STD is often updated
The functionalities keep growing throughout the years. C++11 gave us a soft type of garbage collecting with the smart pointers.
Pro Faster execution of the same algorithms
Because C++ (and its precursor C) are "lower level" than a lot of popular programming languages they are also faster at executing code than Java or C# which require VMs and garbage collection threads.
Pro Universal, portable, best complexity/efficiency trade-off
Pro Best way to understand algorithms
Pro Has lots of library
C++ is mature and everything has standardized library.
Pro Visual Studio
The Visual Studio IDE offers one of the best development environments. The Community Edition can be used for free.
Can be designed visually with the Visual Studio designer for traditional Windows forms, WPF, or Web forms.
.NET offers rich functionality.
Pro Can be used in a variety of fields
with Xamarin for Mobile (ios, android)
with .net core asp for server (linux, windows)
with .net core for desktop (windows, mac)
with mono for desktop (windows, linux)
with blazor for web client with webassembly.
However, it is not considered top for any of those categories
top choice for windows desktop with .net framework
top choice for Unity
.net 5 will unify frameworks similar to JVM (just one)
Pro It is a C like language.
Being a C like language counts in favor for it as a general purpose programming language, given the ease of using existing skills to pick up this language easily.
there are other superior languages that could be used as a general purpose, such as: F#, Haskell, but the complexity of those languages, being functional, make them strange to the usual C Syntax.
C# is better than C whenever garbage collection, Objects, classes, data access, are needed. But C is going to be the choice when hardware access and performance are paramount.
Pro 3rd Party support
Lot's of tools and libraries available.
Con Huge language gets in the way of learning
C++ is such an atrociously over-complicated language that its learning curve may get in the way of learning fundamentals. Learning C++ well is a ten-year project, and even experts are frequently surprised by the language.
Con Undefined behavior
Subtle errors can render the entire program "undefined" by the complicated C++ standard. The standard imposes no requirements in such cases. Thus C++ compiler writers are free to ignore the existence of such cases and Bad Things are prone to happen instead. Even experts can't reliably avoid undefined cases in C++, so how can beginners be expected to do so?
Con Module system is not great
C++ uses the
#include mechanism provided by C. Which unfortunately is a poor way of accessing the API of a library. Some of the reasons why the module system is weak are:
Compile time scalability: The compiler must preprocess every header included in a file, and every header included in those headers. This process must be repeated for every translation unit in the program. As can be imagined, this doesn't scale very well. For each header added you are increasing the compilation time exponentially.
Fragile: modules included are treated as textual imports by the compiler. This causes all sorts of problems since they are subject to any macro definitions in the time of the inclusion. If any of these macro definitions collide with a name in the library it can break the library API .
Con No two programmers can agree on which 10% subset of C++ to use
C++ is such a huge and complicated language, that programmers have to learn a disciplined subset of it to reliably get anything done. The problem is, no-one can agree on which subset to use and they can't understand each other.
Con Tough to learn as the first language
Many of the concepts are hard to grasp if you have no prior programming experience.
Con Retains nearly all bad habits of C
Con No reflection
C++ objects are frustratingly opaque. This makes debugging especially difficult, something beginners have to do a lot.
Con Memory leaks and segmentation faults
Because C and C++ allow the user direct access to memory and don't provide garbage collection threads, there is a probability that a program may have a "memory leak", which occurs when something a programmer allocated in the heap is not deallocated properly. Also, attempting to dereference memory protected by the operating system causes a segmentation fault and kills the program.
Con Arcane binding rules
Con Incomprehensible operator overloading resoution
Con Duplicates C features in incompatible ways
Arrays, strings, pointers, etc. have both C and C++ versions. Sometimes the C++ versions are worse. This is more useless trivia beginners have to sort through.
Con Bugs easily corrupt the memory you need to find them
You can usually get a core dump, but often the call stack gets completely overwritten. Compilers are not even consistent in how they map the binary objects to code.
Con Painfully slow compilation
Beginners need fast feedback
Con No way to locate definitions
No modules, just files, and no way to tell where anything came from.
Con Complicated types
Con Undefined behaviors and weak limited type safety
Undefined behavior in a program can cause unexpected results, making it hard to debug. With UB, program behavior may vary wildly depending on optimization settings. There are many cases that invoke UB, such as signed overflow, invalid dereferences, large integer shifts, uninitialized variables, etc. C++ allows for non-type safe operations such as logic errors, wild pointers, buffer overflow, etc. UB and type safety issues create a large number of bugs and security vulnerabilities.
Con Standard library missing important features
Con Exceptions incompatible with C++ manual memory management
Con Learning curve
For a beginner the .NET framework can be daunting, the rich functionality means that things often can be done in several ways.
Con Microsoft will mess up with the Visual studio installation
And all of a sudden you'll need to reinstall the entire thing just because it stopped working.
Microsoft assumes that every workstation is connected to the Internet then it is always pushing updates.
Con Very large runtime
Cannot be used for embedded programming