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if_else.hpp
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1 #ifndef STAN_MATH_REV_SCAL_FUN_IF_ELSE_HPP
2 #define STAN_MATH_REV_SCAL_FUN_IF_ELSE_HPP
3 
4 #include <stan/math/rev/core.hpp>
5 
6 namespace stan {
7  namespace math {
8 
17  inline var if_else(bool c, const var& y_true, const var&y_false) {
18  return c ? y_true : y_false;
19  }
29  inline var if_else(bool c, double y_true, const var& y_false) {
30  if (c)
31  return var(y_true);
32  else
33  return y_false;
34  }
44  inline var if_else(bool c, const var& y_true, const double y_false) {
45  if (c)
46  return y_true;
47  else
48  return var(y_false);
49  }
50 
51  }
52 }
53 #endif
Independent (input) and dependent (output) variables for gradients.
Definition: var.hpp:32
boost::math::tools::promote_args< T_true, T_false >::type if_else(const bool c, const T_true y_true, const T_false y_false)
Return the second argument if the first argument is true and otherwise return the second argument...
Definition: if_else.hpp:25

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