logical_and()

template<typename T1 , typename T2 >

int stan::math::logical_and ( const T1  x1, const T2  x2  )

inline

The logical and function which returns 1 if both arguments are unequal to zero and 0 otherwise.

Equivalent to x1 != 0 && x2 != 0.

\[ \mbox{operator\&\&}(x, y) = \begin{cases} 0 & \mbox{if } x = 0 \textrm{ or } y=0 \\ 1 & \mbox{if } x, y \neq 0 \\[6pt] 1 & \mbox{if } x = \textrm{NaN or } y = \textrm{NaN} \end{cases} \]

Template Parameters

T1	type of first argument
T2	type of second argument

Parameters

x1	first argument
x2	second argument

Returns

true if both x1 and x2 are not equal to 0.

Definition at line 30 of file logical_and.hpp.