Struct thrust::unary_negate

unary_negate is a function object adaptor: it is an Adaptable Predicate that represents the logical negation of some other Adaptable Predicate. That is: if f is an object of class unary_negate<AdaptablePredicate>, then there exists an object pred of class AdaptablePredicate such that f(x) always returns the same value as !pred(x). There is rarely any reason to construct a unary_negate directly; it is almost always easier to use the helper function not1.

Inherits From: thrust::unary_function< Predicate::argument_type, bool >

See:

• https://en.cppreference.com/w/cpp/utility/functional/unary_negate
• not1

#include <thrust/functional.h>
template <typename Predicate> struct thrust::unary_negate { public:   /* Inherited from thrust::unary_function< Predicate::argument_type, bool > */   /* The type of the function object's argument. */  typedef see below argument_type;
   /* Inherited from thrust::unary_function< Predicate::argument_type, bool > */   /* The type of the function object's result. */  typedef see below result_type;
  explicit _CCCL_HOST_DEVICE   unary_negate(Predicate p);
  _CCCL_EXEC_CHECK_DISABLE _CCCL_HOST_DEVICE bool   operator()(const typename Predicate::argument_type & x); };

Member Functions

Function thrust::unary_negate::unary_negate

explicit _CCCL_HOST_DEVICE unary_negate(Predicate p); Constructor takes a Predicate object to negate.

Function Parameters: p: The Predicate object to negate.

Function thrust::unary_negate::operator()

_CCCL_EXEC_CHECK_DISABLE _CCCL_HOST_DEVICE bool operator()(const typename Predicate::argument_type & x); Function call operator. The return value is !pred(x).