Automatic Differentiation
 
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operator_equal_equal.hpp
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1#ifndef STAN_MATH_PRIM_CORE_OPERATOR_EQUAL_EQUAL_HPP
2#define STAN_MATH_PRIM_CORE_OPERATOR_EQUAL_EQUAL_HPP
3
5#include <complex>
6
7namespace stan {
8namespace math {
9
20template <typename U, typename V, typename = require_any_autodiff_t<U, V>>
21inline bool operator==(const std::complex<U>& x, const std::complex<V>& y) {
22 return x.real() == y.real() && x.imag() == y.imag();
23}
24
35template <typename U, typename V, typename = require_any_autodiff_t<U, V>>
36inline bool operator==(const std::complex<U>& x, const V& y) {
37 return x.real() == y && x.imag() == 0;
38}
39
51template <typename U, typename V, typename = require_any_autodiff_t<U, V>>
52inline bool operator==(const U& x, const std::complex<V>& y) {
53 return x == y.real() && 0 == y.imag();
54}
55
56} // namespace math
57} // namespace stan
58#endif
bool operator==(const fvar< T > &x, const fvar< T > &y)
Return true if the specified variables have equal values as defined by ==.
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...