Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
#include <boost/math/special_functions/next.hpp>
namespace boost{ namespace math{ template <class FPT> FPT float_prior(FPT val); }} // namespaces
Returns the next representable value which is less than x. If x is non-finite then returns the result of a domain_error. If there is no such value less than x then returns an overflow_error.
Has the same effect as
nextafter(val, -std::numeric_limits<FPT>::max()); // Note most negative value -max.