1 #ifndef STAN_MATH_PRIM_SCAL_FUN_TRUNC_HPP 2 #define STAN_MATH_PRIM_SCAL_FUN_TRUNC_HPP 6 #include <boost/math/special_functions/trunc.hpp> 21 return std::numeric_limits<double>::quiet_NaN();
33 return trunc(static_cast<double>(x));
var trunc(const var &a)
Returns the truncatation of the specified variable (C99).
fvar< T > trunc(const fvar< T > &x)
Return the nearest integral value that is not larger in magnitude than the specified argument...
boost::math::policies::policy< boost::math::policies::overflow_error< boost::math::policies::errno_on_error >, boost::math::policies::pole_error< boost::math::policies::errno_on_error > > boost_policy_t
Boost policy that overrides the defaults to match the built-in C++ standard library functions...
int is_nan(const fvar< T > &x)
Returns 1 if the input's value is NaN and 0 otherwise.