Class thrust::system::error_condition

The class error_condition describes an object used to hold values identifying error conditions.

Note: error_condition values are portable abstractions, while error_code values are implementation specific.

#include <thrust/system/error_code.h>
class thrust::system::error_condition { public:  error_condition();
  error_condition(int val,     const error_category & cat);
  template <typename ErrorConditionEnum>   error_condition(ErrorConditionEnum e,     typename thrust::detail::enable_if< is_error_condition_enum< ErrorConditionEnum >::value >::type * = 0);
  void   assign(int val,     const error_category & cat);
  template <typename ErrorConditionEnum>   thrust::detail::enable_if< is_error_condition_enum< ErrorConditionEnum >::value, error_condition >::type &   operator=(ErrorConditionEnum e);
  void   clear();
  int   value() const;
  const error_category &   category() const;
  std::string   message() const;
  operator bool() const; };

Member Functions

Function thrust::system::error_condition::error_condition

error_condition(); Constructs an object of type error_condition.

Postconditions:

• value() == 0.
• category() == generic_category().

Function thrust::system::error_condition::error_condition

error_condition(int val,   const error_category & cat); Constructs an object of type error_condition.

Postconditions:

• value() == val.
• category() == cat.

Function thrust::system::error_condition::error_condition

template <typename ErrorConditionEnum> error_condition(ErrorConditionEnum e,   typename thrust::detail::enable_if< is_error_condition_enum< ErrorConditionEnum >::value >::type * = 0); Constructs an object of type error_condition.

Note: This constructor shall not participate in overload resolution unless is_error_condition_enum<ErrorConditionEnum>::value is true.

Postconditions: *this == make_error_condition(e).

Function thrust::system::error_condition::assign

void assign(int val,   const error_category & cat); Assigns to this error_code object from an error value and an error_category.

Function Parameters:

• val The new value to return from value().
• cat The new error_category to return from category().

Postconditions:

• value() == val.
• category() == cat.

Function thrust::system::error_condition::operator=

template <typename ErrorConditionEnum> thrust::detail::enable_if< is_error_condition_enum< ErrorConditionEnum >::value, error_condition >::type & operator=(ErrorConditionEnum e); Assigns to this error_code object from an error condition enumeration.

Note: This operator shall not participate in overload resolution unless is_error_condition_enum<ErrorConditionEnum>::value is true.

Postconditions: *this == make_error_condition(e).

Returns: *this

Function thrust::system::error_condition::clear

void clear(); Clears this error_code object.

Postconditions:

• value == 0
• category() == generic_category().

Function thrust::system::error_condition::value

int value() const; Returns: The value encoded by this error_condition.

Function thrust::system::error_condition::category

const error_category & category() const; Returns: A const reference to the error_category encoded by this error_condition.

Function thrust::system::error_condition::message

std::string message() const; Returns: category().message(value()).

Function thrust::system::error_condition::operator bool

operator bool() const; Returns: value() != 0.