Hi, On Mon, Mar 14, 2005 at 02:11:51PM +0100, Marc Espie wrote: > In article <[EMAIL PROTECTED]> you write: > >Well as I said above, trampolines or an equivalent are currently critically > >needed by some front ends (and of course by anyone using the (very useful > >IMO) > >extension of nested functions in C). > > This is your opinion, but I've yet to find an actual piece of code in a > real project that uses that extension.
http://svn.clifford.at/spl/trunk/modules/mod_xml.c .. much easier this way as by passing everything with the userdata pointer. I've also seen already APIs with callbacks which do not support userdata pointers. While I am agree that those APIs are broken it is still a good feeling to know that it is possible to work around this issues using nested functions... yours, - clifford -- bash -c "gcc -o mysdldemo -Wall -O2 -lSDL -lm -pthread -x c <( echo -e ' #include <SDL/SDL.h>\n#include <complex.h>\nint main(){SDL_Surface*s;SDL_Event e;int x,y,n;SDL_Init(SDL_INIT_VIDEO);s=SDL_SetVideoMode(640,480,32,0);for(x=0; x<640;x++)for(y=0;y<480;y++){float _Complex z=0, c=((x-400)/200.0) + ((y-240)/ 200.0)*1.0fi;for(n=1;n<64;n++){z=z*z+c;if(cabsf(z)>2){((Uint32*)s->pixels)[x+y *640]=n<<3;n=99;}}}SDL_UpdateRect(s,0,0,s->w,s->h);do SDL_WaitEvent(&e); while (e.type!=SDL_QUIT&&e.type!=SDL_KEYDOWN);SDL_Quit();return 0;}' ); ./mysdldemo" Programming graphics in X is like finding sqrt(pi) using Roman numerals.
pgpxjVrWkAgnJ.pgp
Description: PGP signature
