isc::dhcp::TokenAnd Class Reference

Token that represents logical and operator. More...

#include <token.h>

Inheritance diagram for isc::dhcp::TokenAnd:

Public Member Functions
	TokenAnd ()
	Constructor (does nothing) More...
void	evaluate (Pkt &pkt, ValueStack &values)
	Logical and. More...
Public Member Functions inherited from isc::dhcp::Token
virtual	~Token ()
	Virtual destructor. More...

Additional Inherited Members
Static Public Member Functions inherited from isc::dhcp::Token
static bool	toBool (std::string value)
	Coverts a (string) value to a boolean. More...

Detailed Description

Token that represents logical and operator.

For example "option[10].exists and option[11].exists"

Definition at line 920 of file token.h.

Constructor & Destructor Documentation

isc::dhcp::TokenAnd::TokenAnd ( )

inline

Constructor (does nothing)

Definition at line 923 of file token.h.

Member Function Documentation

void TokenAnd::evaluate ( Pkt &  pkt, ValueStack &  values  )

virtual

Logical and.

Evaluation does not use packet information, but rather consumes the last two parameters. It returns "true" if and only if both are "true". It requires at least two logical (i.e., "true" or "false') values present on stack.

Exceptions

EvalBadStack	if there are less than 2 values on stack
EvalTypeError	if one of the 2 values on stack is not "true" or "false"

Parameters

pkt	(unused)
values	- stack of values (2 arguments will be popped, 1 result will be pushed)

Implements isc::dhcp::Token.

Definition at line 891 of file token.cc.

References isc::dhcp::EVAL_DBG_STACK, isc::dhcp::EVAL_DEBUG_AND, isc::dhcp::eval_logger, isc_throw, LOG_DEBUG, and isc::dhcp::Token::toBool().

Here is the call graph for this function:

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

• token.h
• token.cc