\(\newcommand{\W}[1]{ \; #1 \; }\) \(\newcommand{\R}[1]{ {\rm #1} }\) \(\newcommand{\B}[1]{ {\bf #1} }\) \(\newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} }\) \(\newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} }\) \(\newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} }\) \(\newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }\)

bool_fun

View page source

AD Boolean Functions

Syntax

CPPAD_BOOL_UNARY ( Base , unary_name )

b = unary_name ( u )

b = unary_name ( x )

CPPAD_BOOL_BINARY ( Base , binary_name )

b = binary_name ( u , v )

b = binary_name ( x , y )

Purpose

Create a bool valued function that has AD < Base > arguments.

unary_name

This is the name of the bool valued function with one argument (as it is used in the source code). The user must provide a version of unary_name where the argument has type Base . CppAD uses this to create a version of unary_name where the argument has type AD < Base > .

u

The argument u has prototype

const Base & u

It is the value at which the user provided version of unary_name is to be evaluated. It is also used for the first argument to the user provided version of binary_name .

x

The argument x has prototype

const AD < Base > & x

It is the value at which the CppAD provided version of unary_name is to be evaluated. It is also used for the first argument to the CppAD provided version of binary_name .

b

The result b has prototype

bool b

Create Unary

The preprocessor macro invocation

CPPAD_BOOL_UNARY ( Base , unary_name )

defines the version of unary_name with a AD < Base > argument. This can with in a namespace (not the CppAD namespace) but must be outside of any routine.

binary_name

This is the name of the bool valued function with two arguments (as it is used in the source code). The user must provide a version of binary_name where the arguments have type Base . CppAD uses this to create a version of binary_name where the arguments have type AD < Base > .

v

The argument v has prototype

const Base & v

It is the second argument to the user provided version of binary_name .

y

The argument x has prototype

const AD < Base > & y

It is the second argument to the CppAD provided version of binary_name .

Create Binary

The preprocessor macro invocation

CPPAD_BOOL_BINARY ( Base , binary_name )

defines the version of binary_name with AD < Base > arguments. This can with in a namespace (not the CppAD namespace) but must be outside of any routine.

Operation Sequence

The result of this operation is not an AD of Base object. Thus it will not be recorded as part of an AD of Base operation sequence .

Example

The file bool_fun.cpp contains an example and test of these operations.

Deprecated 2007-07-31

The preprocessor symbols CppADCreateUnaryBool and CppADCreateBinaryBool are defined to be the same as CPPAD_BOOL_UNARY and CPPAD_BOOL_BINARY respectively (but their use is deprecated).