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/* Project:     OSLib
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 * Description: The OS Construction Kit
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 * Date:                1.6.2000
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 * Idea by:             Luca Abeni & Gerardo Lamastra
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 *
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 * OSLib is an SO project aimed at developing a common, easy-to-use
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 * low-level infrastructure for developing OS kernels and Embedded
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 * Applications; it partially derives from the HARTIK project but it
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 * currently is independently developed.
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 *
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 * OSLib is distributed under GPL License, and some of its code has
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 * been derived from the Linux kernel source; also some important
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 * ideas come from studying the DJGPP go32 extender.
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 *
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 * We acknowledge the Linux Community, Free Software Foundation,
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 * D.J. Delorie and all the other developers who believe in the
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 * freedom of software and ideas.
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 *
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 * For legalese, check out the included GPL license.
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 */
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#include <ll/i386/cons.h>
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#include <ll/stdlib.h>
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#include <ll/sys/types.h>
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/* bytes for +Infinity on a 387 */
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char __infinity[] = { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f };
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static int (*__errnumber)(void) = NULL;
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static int errno;
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int *__errnumber1()
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{
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  if (__errnumber == NULL) {
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    return &errno;
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  }
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  return (void *)__errnumber();
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}
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void seterrnumber(int (*e)(void))
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{
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  __errnumber = e;
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}
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int isnan(double d)
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{
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        register struct IEEEdp {
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                u_int manl : 32;
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                u_int manh : 20;
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                u_int  exp : 11;
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                u_int sign :  1;
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        } *p = (struct IEEEdp *)&d;
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        return(p->exp == 2047 && (p->manh || p->manl));
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}
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/* By Luca.... The write stub */
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int write(int a, char *b, int c)
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{
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        b[c] = 0;
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        cputs(b);
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        return c;
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}