This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
Undefined Behavior and Sequence Points
Which 'C' compiler gives the logically correct answers... I mean Turbo C older version or the newer one named as Borland cpp 4.5 and above?
The different outputs of the question { int i=5;printf(i++*++i);} made me ask this.
No C compiler will give a correct answer.
The most correct answer would be to detect nonsense of this kind and refuse to compile it with an error message.
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Finding unused enum members in C
(3 answers)
Closed 1 year ago.
Is there a warning or some other technique/mechanism/tooling to clean up a C code from unused enumerations?
A solution for C++ code would also be interesting but the question is primarily about C.
Ideally if the solution was to be found based on GNU tools available in common tool chains.
Any compiler or other code analysis tool that is capable of listing unused enumeration members would be interesting to know about.
I am currently using gcc. -Wall is on. No warnings about unused enumeration members appear in the compilation log.
Thanks to an unknown user in the comments there is an answer. Apparently a tool named Splint is capable of finding unused enumeration members.
Here is a similar question Finding unused enum members in C asked before, where the aforementioned tool has been analyzed and accepted as a correct answer.
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Is there an equivalent in C for C++ templates?
(7 answers)
Closed 4 years ago.
I've previously worked with C but I'm still a major newby in general.
Currently I'm working on a little project that involves Parallel Computing and for this we are using the language Cilk+.
My objective is to implement a parallel scan pattern using Cilk+ and I've found this reference to the subject, but I don't understand half of the notations on it.
Does C have templates? I thought only C++ had them.
If yes, how do they work? I've found nothing regarding the subject.
If not, then can someone explain me what line 1 and 5 mean?
Thank you in advance!
C does not have templates. C++ does.
Line 1 is using C++ templates.
Line 5 is not standard C or C++. It is part of the Cilk Plus extension.
If this is a new project, you may way to avoid Cilk Plus. It's officially deprecated. Intel is encouraging everyone to switch to OpenMP or TBB instead.
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Disabling Warnings generated via _CRT_SECURE_NO_DEPRECATE
(10 answers)
Closed 5 years ago.
I'm currently trying to get some C code that I originally wrote for linux (gcc) to build on a win32 box.
The MSVC compiler is giving me warnings for all my printf and scanf usage suggesting I should use printf_s and scanf_s instead as a more secure alternative.
Its never nice to ignore 100's of compiler warnings, but should I in this instance?
Is there a simple workaround to fix this? Perhaps encapsulate those functions in a platform specific preprocessor directive?
You can suppress these warning by defining _CRT_SECURE_NO_DEPRECATE before the #include statements. But you should consider to use the new, secure functions.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How was the first compiler written?
I'm asking this as a single question because, essentially what I'm trying to ask is at the bottom how is all of this implemented, here goes:
How was the first C compiler generated, since C compiler is written in C itself then how was the first source of C compiler generated?
Is C written in ASM, how are languages actually designed?, because before we had high level languages the only way to design something was through ASM, even if C is derived from earlier languages, how were they designed? (My clue is ASM)
I'm getting confused as to how does C work down at the bottom. What I'm trying to say is since at the bottom, everything is implemented at the processor by OPcodes. So what my understanding was that C programs are "essentially" translated to Sys Calls which are implemented by the Kernel.
But then how are syscalls implemented? (Do they directly correspond to OPcodes or is there any other layer of abstraction.
How was the first C compiler generated, since C compiler is written in C itself then how was the first source of C compiler generated?
Bootstrapping.
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Closed 10 years ago.
Possible Duplicate:
C++ R - tree implementation wanted
I've been hunting just about all evening...
Anyone know of a R*-Tree implementation that builds on a modern C compiler?
Thanks,
Chenz
SQLite's R* Tree might interest you. It is under public domain or such free license and builds with gcc.