argp.h

[ChimpFace9000]

Does anyone know of a c compiler that has the argp.h file? Since its mainly for unix i thought DJGPP would, but it didnt.

[parksie]

What's the header for?

[ChimpFace9000]

The argp_parser function. Its an advanced argument parser.

[parksie]

I never heard of it.

You mean parsing things like:

[email protected]$ ls --color -FRa

I found this though, but make of it what you will...

http://cvs.parisc-linux.org/obsolete/glibc/argp/

[ChimpFace9000]

Is the entire libc obsolete?

[parksie]

Nope, that's an obsolete branch of the libc code for PA-RISC systems.

It's the only place I could find that had any source whatsoever. If you have a Linux installation somewhere you might have the source in it

[ChimpFace9000]

Nope im running windows here.

[parksie]

Umm...maybe Cygwin has it? I have it installed but not any of the source code.

www.cygwin.com

[ChimpFace9000]

Nope i tried it already. Ming-W doesnt either. Are there any really good C compilers for windows?

[parksie]

Well, gcc if you can get Cygwin working

2.95 works fine under mine, but I've been having difficulty getting GCC3 in - it compiles but can't install, so you'd have to set everything up manually.

Visual C++ generates the best code out of that and Borland FCLT 5.5, but I haven't had chance to peruse gcc3's windows output having not got it working yet

It was fine under linux though.

[ChimpFace9000]

GCC for windows or DOS just plain sucks. (I want linux so bad!) Visual C++ isnt C, so it makes huge executables. Same with BC 5.5.

[parksie]

Originally posted by ChimpFace9000
GCC for windows or DOS just plain sucks. (I want linux so bad!) Visual C++ isnt C, so it makes huge executables. Same with BC 5.5.

It does C as well.

Use files with a .c extension.

[ChimpFace9000]

All C++ compilers "do" C. C++ is made from C. But the executables come out huge. Thats why i want a c compiler only.

[parksie]

Hmmm...some numbers for MSVC (release mode):

Static CRT: 27K
DLL CRT: 2.5K

I couldn't get it less than 2.5 in C mode even when messing with the CRT stuff, although I managed to link in some separately-compiled segments of the CRT (like printf).

However, the problem isn't with the generated code, it's with the libraries it uses.

[ChimpFace9000]

Ok whats static CRT and whats dll CRT. And 27kb is still big. LCC can get it down to like 5. And thats with debug info i think.

[parksie]

CRT = C RunTime library

If you link it into your program, that's static. If it uses msvcrt.dll then that's dynamic (and considering msvcrt.dll HAS to be on every system, that's not really a problem).

Like I say, it's a problem with the layout of the libraries, or perhaps the linker. 27KB was when it brought all the file i/o stuff in which is a size killer for both C and C++.

Although, I got a printf equivalent by using wsprintf, GetStdHandle, and WriteFile. It works perfectly, and takes almost no space in the executable.

I think I get round most of these problems by just hacking out the bits of the CRT source I want and using the rest from kernel32.dll.

I will admit though, that a pure C compiler can get it down further, because the library doesn't need to support calling all the static initialisers.

[ChimpFace9000]

I guess my only answer is to switch to Linux. I have to get my own computer first. So i guess ill just use DJGPP while im on windows.

[mariett89]

hi.. i have a question maybe you can help me... how can i call a .txt file with the argp library, being the .txt file "archivo_carreras" and "archivo_estudiantes" These files are input and "archivo salida" is a .txt file too but it is the output of the program

i want to find something like this example:

./pre -F<archivo-estudiantes> -U<archivo-carreras> -o<archivo-salida>