Re: [Ilugc] [TIP] some C
On Thu, Dec 22, 2011 at 10:52 AM, Sree wrote: > Hi, >> $ gcc i.c >> >> will get you the result. > > Just adding to that, I've found that -Wall switch is very useful for > finding silly errors that might creep in, so it makes sense to compile > every C program with that switch on. And -g is useful if the compiled > executable is to be debugged at a later stage. > > Both these switches are applicable to g++ too, and has the same meaning. On a related tool, way back in my days as a developer, we used lint (to remove all warnings and errors) before submitting our code to the build queue (vt100 terminals connecting to the main frame over 1200 bps dial up lines) A search for the same coughed up 'splint' [1] which looks very promising. [1] http://www.splint.org/ -- Arun Khan ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] [TIP] some C
Hi, > $ gcc i.c > > will get you the result. Just adding to that, I've found that -Wall switch is very useful for finding silly errors that might creep in, so it makes sense to compile every C program with that switch on. And -g is useful if the compiled executable is to be debugged at a later stage. Both these switches are applicable to g++ too, and has the same meaning. Hope that helps :) -- Regards, Sree ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] [TIP] some C
C programming is something everyone in India learns; at least whoever
has studied any of the core branches.
And many may not know how to compile and run a C program in a Linux box.
Here are some utter basics.
$ cat i.c
#include
int
main() {
printf("Hello World\n");
}
$ make i
or
$ gcc i.c
will get you the result.
The output file is either in i or a.out.
You can do a
$ ls -ltr
to figure out the latest file created.
Of course you should not compile C on UNIX without knowing some basic
UNIX commands.
A compiler like gcc only converts the source code of C into assembly.
You need a linker(ld) and an assember
like gas to convert the assembly to machine code that is executed in the CPU.
Now C coding is about thinking a lot and not just getting your job
done without programming hassle.
In fact it is impossible to do C coding without design skills and no
high level design can be done without C coding
experience.
In fact C is a language that demands an extremely high degree of
commitment, intellect and experience.
However most people seem to know many basic C programming concepts and
have experience running C code.
As to the IT industry I think any IT company in India depends on C
only as much as 20% or so.
Rest of the people get on with peripheral skills.
-Girish
--
G3 Tech
Networking appliance company
web: http://g3tech.in mail: gir...@g3tech.in
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
