问题
I always find that some people (a majority from India) are using turbo C. I cannot find any reason to use such outdated compiler... But I don't know what reasons to give when trying to tell them to use modern compiler(gcc,msvc,...).
回答1:
Turbo C is a DOS only product. This means that it no longer runs "natively" on 64-bit versions of Windows, and must be run inside the XP compatibility penalty box.
回答2:
While there are plenty of reasons not to use Turbo C (it's old, predates standards, generates 16-bit code, etc.), it's not valid to answer a question like "How do I do X in Turbo C?" with "Just use GCC". That would be like somebody asking "How do I do X with my 1992 Toyota?" and you saying "Just get a newer car".
People who are using Turbo C are probably doing so because it's a requirement, not because they don't know about anything better. Odds are it's for a programming class where the assignments they turn in have to work in that compiler. When I was grading C++ assignments, it didn't matter what compiler the students used, but they had to compile and run properly with the compiler I was using.
回答3:
I would say support and standards compliance would be the two big issues for me.
Good luck even finding Borland/Inprise/Borland/Codegear/Embarcadero, or whatever they call themselves nowadays. Even more kudos if you can get them to admit these products exist (although I did at some point get them from the Borland museum on BDN).
Performance can be important but the vast majority of applications I write spend 90% of their time waiting for the user (I don't do genome sequencing, SETI analysis or protein folding - the market is pretty small).
Honestly, if I have the choice between two free products (where obviously money is not an issue), I'll always select the best (that would be GCC for me).
回答4:
Turbo C generates 16-bit X86 code. Kiiinda nice when you're developing on a 16-bit x86 processor.
Been there. Done that.
The pragmatic reasons for changing are: gcc is under development, with bug-fixes. It deploys on modern operating systems and modern chips natively.
回答5:
It was also my first compiler (4 yrs ago), though I switched to gcc soon enough when I learned it didn't follow latest standards and relied on features that are considered deprecated or bad practice. These were enough reasons for me to make the switch.
回答6:
The most important reason you should use decent C compiler is performance. Since GCC optimizes the code aggressively, the compiled programs would have the performance tens of percents higher than before.
回答7:
Turbo C is much simpler to configure & use, runs on old DOS machines. Also it is compact in size.I guess that is the reason.
However, it does take a very little advantage of modern processors.
来源：https://stackoverflow.com/questions/3920351/what-is-wrong-with-using-turbo-c