Mail Archives: djgpp/2000/07/31/22:45:33
From: | Radical NetSurfer <radsmail AT juno DOT com>
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | modf BROKEN ??
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Date: | Mon, 31 Jul 2000 22:37:40 -0400
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Message-ID: | <crdcosk167oh81vpnjfqeg1bnls5qqg9ld@4ax.com>
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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Reply-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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