1 #ifndef STAN_MATH_REV_SCAL_FUN_ROUND_HPP
2 #define STAN_MATH_REV_SCAL_FUN_ROUND_HPP
13 class round_vari :
public op_v_vari {
15 explicit round_vari(vari* avi) :
16 op_v_vari(::
round(avi->val_), avi) {
20 avi_->adj_ = std::numeric_limits<double>::quiet_NaN();
58 return var(
new round_vari(a.
vi_));
fvar< T > round(const fvar< T > &x)
Independent (input) and dependent (output) variables for gradients.
vari * vi_
Pointer to the implementation of this variable.
int is_nan(const fvar< T > &x)
Returns 1 if the input's value is NaN and 0 otherwise.