C standard library

[sanderjd]

This may seem like a silly question, but I'm wondering how I make the C standard libraries work. I have been somewhat surprised at the seeming lack of built in support for programming in C. I already installed the make and gcc packages I needed but now I have no standard library support, and I don't know where to find it. I've looked a bit through the forums but I can't seem to find anything about it. Really I'm just looking for the quickest way to get a fully-functional C/C++ development environment working. Any thoughts are helpful.

[cstudent]

Start with installing the build essential package.
From a terminal window enter:


sudo apt-get install build-essential


Then you can use many different ways to write code.

Vi or Vim, Emacs or XEmacs, Anjuta, Glade or Eclipse to name a few. These can all be installed using apt-get or synaptic. The IDE I've been using lately is Code Blocks which I download from here: http://www.savefile.com/projects/547711

For some help with the C library itself I sometimes use this site: http://ccs.ucsd.edu/c/

Hope this gets you going.

[xtoph]

im having the same trouble. ive done c/c++ on windows and unix school computers. now i have ubuntu on my home box. i also have the make and gcc packages, and i know how to use VI. i have directories called usr/include/c++/4.0 and 4.2. they look suspiciously identical, and contain files like cstdlib.

so how come i cant even get a hello world to compile? how do the includes work?
ive tried to include <stdlib>, <cstdlib>, "cstdlib.h", "cstdlib"
i get an error for every include attempt, plus this one if i dont use any includes

/usr/bin/ld: crt1.o: No such file: No such file or directory
collect2: ld returned 1 exit status

a little help?

[LordHunter317]

The issue is almost certianly in the command you're running, or you're missing 'libc6-dev'. Did you install 'build-essential'? It looks like you didn't.

[cstudent]

You need to install the build-essential package.

Open a terminal window and enter:


sudo apt-get install build-essential


Once installed open Vi or whatever text editor you want to use and enter your hello world code and save the file as helloworld.c


#include <stdio.h>

int main()
{
printf("Hello World!\n");
return 0;
}


Open a terminal window again and navigate to the directory you stored your file and use gcc to compile.


gcc helloworld.c -o helloworld


If no errors are listed and you return to the command prompt it worked. Then run your program like so:


./helloworld


This will hopefully get you started on your way.

[xtoph]

wow. i guess i should have read that closer the first time. thanks guys.