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SourcePro 11.1

SourcePro® C++ API Reference Guide



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RWDecimalBase Class Reference
[MiscellaneousDecimal Numbers]

Base class for the family of Rogue Wave decimal classes. More...

#include <rw/tools/decbase.h>

Inheritance diagram for RWDecimalBase:
RWDecimal< M > RWDecimalPortable RWFixedDecimal< M >

List of all members.

Public Types

enum  RoundingMethod {
  PLAIN, UP, DOWN, BANKERS,
  TRUNCATE
}
enum  Op {
  assign, add, sub, mult,
  div, powop, pow10op, conversion
}

Detailed Description

The base class for the different RWDecimal classes. This class provides the definition of enums used in the derived classes and in the related classes RWDecimalInexactErr and RWDecimalOverflowErr.


Member Enumeration Documentation

An enumeration defining the operation that caused the error handler to be called.

See also:
RWDecimalInexactErr and RWDecimalOverflowErr.
Enumerator:
assign 

 

add 

 

sub 

 

mult 

 

div 

 

powop 

 

pow10op 

 

conversion 

 

Rounding methods used by RWDecimalPortable::round()

The following table shows the results of the different rounding methods.

Method 1.25 1.35 1.251
PLAIN 1.2 1.3 1.2
UP 1.3 1.4 1.3
DOWN 1.2 1.3 1.2
TRUNCATE 1.2 1.3 1.2
BANKERS 1.2 1.4 1.3
Enumerator:
PLAIN 

Round up on a tie.

UP 

Always round up.

DOWN 

Always round down.

BANKERS 

On a tie, round so that last digit is even.

TRUNCATE 

Same as DOWN.


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