From:	Radical NetSurfer <radsmail AT juno DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	modf BROKEN ??
Date:	Mon, 31 Jul 2000 22:37:40 -0400
Message-ID:	<crdcosk167oh81vpnjfqeg1bnls5qqg9ld@4ax.com>
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To:	djgpp AT delorie DOT com
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Why does the following program INCORRECTLY display
the fractional part?

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <math.h>

#include <pc.h>
#include <unistd.h>

int main(int argc, char **argv) {
double  i, f;
double  v, y;

     printf("Observe the \"Rounded\" Value of Fint below:\n");
     printf("Use ESC to exit.\n\n");

     for(v=0.0; v< 10; v+=0.1) {
      f = modf(v, &i);    // fractional = modf(argument, &integral);
      if ( f <0.5 ) y = floor(v);
               else y = ceil(v);

      printf("Value: %lf  Fint: %lf Int: %lf  Frac: %lf\n",
                           v,            y,          i,           f );
      if ( getch() == 27 ) break;
     }

return (0);
} //main
------------------------------------------------------------------------------------------------------
well?

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