diff options
Diffstat (limited to 'boost/spirit/home/karma/numeric/detail/real_utils.hpp')
| -rw-r--r-- | boost/spirit/home/karma/numeric/detail/real_utils.hpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/boost/spirit/home/karma/numeric/detail/real_utils.hpp b/boost/spirit/home/karma/numeric/detail/real_utils.hpp index 526985d280..84ea67dd4b 100644 --- a/boost/spirit/home/karma/numeric/detail/real_utils.hpp +++ b/boost/spirit/home/karma/numeric/detail/real_utils.hpp @@ -105,7 +105,13 @@ namespace boost { namespace spirit { namespace karma if (exp != -dim) ++exp; dim = static_cast<U>(-exp); - n *= spirit::traits::pow10<U>(exp); + // detect and handle denormalized numbers to prevent overflow in pow10 + if (exp > std::numeric_limits<U>::max_exponent10) + { + n *= spirit::traits::pow10<U>(std::numeric_limits<U>::max_exponent10); + n *= spirit::traits::pow10<U>(exp - std::numeric_limits<U>::max_exponent10); + } else + n *= spirit::traits::pow10<U>(exp); } } |