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cgal
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On win64, eigen wants to convert __int64 to whatever number type we are using.

This commit is contained in:
Marc Glisse 2014-03-14 15:02:17 +01:00
parent 39f1c4f589
commit 5c7ca614bf
1 changed files with 29 additions and 0 deletions
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29
Number_types/include/CGAL/GMP/Gmpq_type.h
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@ -95,6 +95,35 @@ public:
Gmpq(unsigned long n)
{ mpq_set_ui(mpq(), n, 1); }
private:
void init_ull(unsigned long long n){
CGAL_assertion(sizeof(long)==4 && sizeof(long long)==8);
mpq_set_ui(mpq(), (unsigned long)(n>>32), 1);
mpz_ptr z = mpq_numref(mpq());
mpz_mul_2exp (z, z, 32);
mpz_add_ui (z, z, (unsigned long)n);
}
public:
Gmpq(unsigned long long n)
{
if (n <= std::numeric_limits<unsigned long>::max())
mpq_set_ui(mpq(), (unsigned long)n, 1);
else
init_ull(n);
}
Gmpq(long long n)
{
if (sizeof(long)==sizeof(long long))
mpq_set_si(mpq(), n, 1);
else if (n>=0)
init_ull(n);
else {
init_ull(-(unsigned long long)n);
mpq_neg(mpq(), mpq());
}
}
Gmpq(const Gmpz& n)
{ mpq_set_z(mpq(), n.mpz()); }