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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/stdlib.h>
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#include <ll/i386/string.h>
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#include <ll/i386/limits.h>
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#include <ll/i386/float.h>
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#include <ll/i386/mem.h>
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#include <ll/stdarg.h>
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#include <ll/ctype.h>
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#include <ll/math.h>
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#include "sprintf.h"
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FILE(gcvt);
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unsigned gcvt(double v,char *buffer,int width,int prec,int flag)
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{
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    double v_abs;
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    int exponent;
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    /* Manage Inf & NaN */
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    if (isspecial(v,buffer)) return(strlen(buffer));
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    /* Extract absolute value */
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    if (v < 0.0) v_abs = -v;
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    else v_abs = v;
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    /* Zero check! */
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    if (v_abs < DBL_MIN) {
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        *buffer++ = '0';
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        *buffer = 0;
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        return(1);
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    }
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    exponent = 0;
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    /* Evaluate exponent */
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    if (v_abs < 1.0) {
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        while (v_abs < 1) {
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            v_abs *= 10.0;
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            exponent--;
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        }
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    }
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    else {
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        while (v_abs >= 10.0) {
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            v_abs /= 10.0;
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            exponent++;
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        }
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    }
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    /* Choose shortest format on exponent value */
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    if (exponent > 7 || exponent < -7)
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       return(ecvt(v,buffer,width,prec,flag));
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    else return(fcvt(v,buffer,width,prec,flag));
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}