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This commit is contained in:
Sylvain Pion 1999-03-11 15:19:05 +00:00
parent 04c28cf0db
commit 5e9d7ec2e4
1 changed files with 6 additions and 2 deletions
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8
Packages/Interval_arithmetic/include/CGAL/Interval_arithmetic.h
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@ -34,6 +34,10 @@
// - The first one supposes the rounding mode is set -> +infinity before
// nearly all operations, and might set it -> +infinity when leaving, whereas
// the second leaves the rounding -> nearest.
//
// Note: When rounding is towards +infinity, to make an operation rounded
// towards -infinity, it's enough to take the opposite of some of the operand,
// and the opposite of the result (see operator+, operator*,...).
#include <iostream>
#include <CGAL/config.h>
@ -210,7 +214,7 @@ Interval_nt_advanced::operator* (const Interval_nt_advanced & d) const
// d>=0 [inf*d.inf; sup*d.sup]
// d<=0 [sup*d.inf; inf*d.sup]
// d~=0 [sup*d.inf; sup*d.sup]
/* register */ double a = inf, b = sup;
double a = inf, b = sup;
if (d.inf < 0)
{
a=b;
@ -224,7 +228,7 @@ Interval_nt_advanced::operator* (const Interval_nt_advanced & d) const
// d>=0 [inf*d.sup; sup*d.inf]
// d<=0 [sup*d.sup; inf*d.inf]
// d~=0 [inf*d.sup; inf*d.inf]
/* register */ double a = sup, b = inf;
double a = sup, b = inf;
if (d.inf < 0)
{
a=b;