Stan Math Library  2.14.0
reverse mode automatic differentiation
operator_minus_equal.hpp
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1 #ifndef STAN_MATH_REV_CORE_OPERATOR_MINUS_EQUAL_HPP
2 #define STAN_MATH_REV_CORE_OPERATOR_MINUS_EQUAL_HPP
3 
6 
7 namespace stan {
8  namespace math {
9 
10  inline var& var::operator-=(const var& b) {
11  vi_ = new subtract_vv_vari(vi_, b.vi_);
12  return *this;
13  }
14 
15  inline var& var::operator-=(double b) {
16  if (b == 0.0)
17  return *this;
18  vi_ = new subtract_vd_vari(vi_, b);
19  return *this;
20  }
21 
22  }
23 }
24 #endif
Independent (input) and dependent (output) variables for gradients.
Definition: var.hpp:30
var & operator-=(const var &b)
The compound subtract/assignment operator for variables (C++).
vari * vi_
Pointer to the implementation of this variable.
Definition: var.hpp:42

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