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operator_plus_equal.hpp
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1 #ifndef STAN__AGRAD__REV__OPERATORS__OPERATOR_PLUS_EQUAL_HPP
2 #define STAN__AGRAD__REV__OPERATORS__OPERATOR_PLUS_EQUAL_HPP
3 
4 #include <stan/agrad/rev/var.hpp>
5 #include <stan/agrad/rev/operators/operator_addition.hpp>
6 
7 namespace stan {
8  namespace agrad {
9 
10  inline var& var::operator+=(const var& b) {
11  vi_ = new add_vv_vari(vi_,b.vi_);
12  return *this;
13  }
14 
15  inline var& var::operator+=(const double b) {
16  if (b == 0.0)
17  return *this;
18  vi_ = new add_vd_vari(vi_,b);
19  return *this;
20  }
21 
22  }
23 }
24 #endif
stan::agrad::var::vi_
vari * vi_
Pointer to the implementation of this variable.
Definition: var.hpp:40
stan::agrad::var
Independent (input) and dependent (output) variables for gradients.
Definition: var.hpp:27
operator_addition.hpp
stan::agrad::var::operator+=
var & operator+=(const var &b)
The compound add/assignment operator for variables (C++).
Definition: operator_plus_equal.hpp:10
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