Fortran::evaluate::value::LogicalValue Class Reference

#include <flang/Evaluate/logical-value.h>

Public Types
using	Word = IntegerValue

Public Member Functions
	LogicalValue (const LogicalValue &)=default
	LogicalValue (LogicalValue &&)=default
LogicalValue &	operator= (const LogicalValue &)=default
LogicalValue &	operator= (LogicalValue &&)=default
	LogicalValue (int kind, const LogicalValue &v)
	LogicalValue (int kind, LogicalValue &&v)
	LogicalValue (int kind, bool truth)
	LogicalValue (int kind, const Word &w)
void	print (llvm::raw_ostream &os) const
LLVM_DUMP_METHOD void	dump () const
bool	IsNull () const
int	kind () const
	The kind of the value currently stored.
int	bits () const
std::size_t	bytesStored () const
	Number of bytes accessed by FromRawBytes/StoreRawBytes.
Word	word () const
bool	IsCanonical () const
bool	operator< (const LogicalValue &that) const
bool	operator<= (const LogicalValue &that) const
bool	operator== (const LogicalValue &that) const
bool	operator!= (const LogicalValue &that) const
bool	operator>= (const LogicalValue &that) const
bool	operator> (const LogicalValue &that) const
bool	IsTrue () const
LogicalValue	NOT () const
LogicalValue	AND (const LogicalValue &that) const
LogicalValue	OR (const LogicalValue &that) const
LogicalValue	EQV (const LogicalValue &that) const
LogicalValue	NEQV (const LogicalValue &that) const
void	StoreRawBytes (void *dst, size_t size, bool *changed=nullptr) const

Static Public Member Functions
static LogicalValue	Zero (int kind)
static constexpr int	bits (int kind)
static constexpr std::size_t	bytesStored (int kind)
static LogicalValue	FromRawBytes (int kind, const void *raw, std::size_t expectedSize)

Detailed Description

A Fortran LOGICAL value.

The kind is dynamic, but only a predefined set of Fortran kinds are allowed. It is also kind-aware, i.e. knows which LOGICAL kind it currently represents.

It is implemented as a wrapper around IntegerValue.

Member Function Documentation

IsNull()

bool Fortran::evaluate::value::LogicalValue::IsNull ( ) const

inline

Whether this object represents a default-initialized value ('false') of unknown kind.

operator<()

bool Fortran::evaluate::value::LogicalValue::operator< ( const LogicalValue & that ) const

inline

Fortran actually has only .EQV. & .NEQV. relational operations for LOGICAL, but this class supports more so that it can be used with the STL for sorting and as a key type for std::set<> & std::map<>.

Zero()

LogicalValue Fortran::evaluate::value::LogicalValue::Zero ( int kind )

inlinestatic

Creates a logical with value 'false' of a given kind. This is in contrast to the default-ctor which creates a null state that represents 'false' of a not-yet-known kind.

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The documentation for this class was generated from the following files:

• include/flang/Evaluate/logical-value.h
• lib/Evaluate/logical-value.cpp