Gentlemen, choose your weapons.

http://en.wikipedia.org/wiki/Indent_style

I pick: Allman style.

Downside: Proprietary AIDS -
>This style is used by default in Microsoft Visual Studio 2005 and Apple's Xcode.

int main(int argc,char **argv) {
 ...
 while(x==y) {
  something(); somethingelse(); // I'm assuming these two are somewhat related
  if(some_error) do_correct();
  else continue_as_usual();
 }
 finalthing();
 ...
}
like >>4 with 1-space indents and slightly altered spacing

Bonus points for figuring out what it's for/from.
while(inpos<data+len) {
 unsigned short type; unsigned int rlen;
 type = *(unsigned short *)inpos++;
 rlen = ((type&63)==63)?*(unsigned int *)inpos++ : type&63;
 type >>= 6;
 switch(type) {
  ...
  default:
   *(unsigned short *)outpos++ = (type<<6) + (rlen<63)?rlen:63;
   if(rlen>=63) *(unsigned int *)outpos++ = rlen;
   while(rlen--) *outpos++ = *inpos++;
 }
}

#include "stdlib.h"
void main(){
 puts("I write code");
 puts("like this";
 for(char c = 'a'; c < 'z'; c++){
  //I didn't have a tab button on my keyboard for awhile so
  //it evolved into me using a single space...
  //I don't write in C so I might've made an error or two.
 }
}