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improved overflow handling

This commit is contained in:
Daniel Russel 2006-07-13 14:55:16 +00:00
parent 683948a54d
commit c799db173d
1 changed files with 7 additions and 1 deletions
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8
Kinetic_data_structures/include/CGAL/Polynomial/internal/Kernel/Rational_between_roots.h
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@ -36,6 +36,12 @@ struct Rational_between_roots
Rational_between_roots(const K& k): tii_(k.to_isolating_interval_object()){}
template <class T>
static bool is_minf(T r){
if (std::numeric_limits<result_type>::has_infinity) return r== -std::numeric_limits<result_type>::infinity();
else return false;
}
template <class RT>
result_type operator()(const RT &r0, const RT &r1) const
{
@ -45,7 +51,7 @@ struct Rational_between_roots
//Ival i0= to_interval(r0);
//Ival i1= to_interval(r1);
Ival i0= tii_(r0);
if (i0.second == -infinity<double>()) {
if (is_minf(i0.second)) {
result_type ret(-33554432);
while (r1 <= second_argument_type(ret)) {
ret= ret*1024;