Illustration of the abbreviation - compound condition, COBOL Programming

Illustration of the abbreviation:

A few illustration of the abbreviation are given below:

Illustration:

The compound condition 

AMOUNT GREATER THAN 499 AND AMOUNT LESS THAN 1000

can be abbreviated to

AMOUNT GREATER THAN 499 AND LESS THAN 1000

Here, the second appearance of the general subject AMOUNT has been absent.

Illustration:

The compound condition

CARD-CODE    =    3    OR    CARD-CODE   =   5   OR  CARD-CODE   =  7

may be abbreviated to

CARD-CODE   =  3   OR   5   OR   7

In this, the subjects as well as the relational conditions in the given compound condition are similar. Accordingly, the second and third appearances of the subject and the relational condition have been absent.

The consecutives relational conditions which are being considered for the abbreviation may also hold the word NOT. In this situation the interpretation of the abbreviated condition can become ambiguous. To solve the ambiguity the rule below has been recommended in the ANS I standard. The term NOT preceding a relational operator in an abbreviated condition is considered part of the relational operator. Or else, NOT is considered to be a logical operator negating the condition preceded by it. The illustration below can help to understand this rule.

Illustration:

The condition

AGE LESS THAN 30 AND NOT LESS THAN 20 OR 40

is interpreted to be the abbreviation of a compound condition AGE LESS THAN 30 AND AGE NOT LESS THAN 20 OR AGE NOT LESS THAN 40

This is because the NOT precedes the relational operator LESS THAN in the abbreviated condition and as such it is interpreted to be a section of the relational operator NOT LESS THAN.

Posted Date: 10/17/2012 1:50:00 AM | Location : United States







Related Discussions:- Illustration of the abbreviation - compound condition, Assignment Help, Ask Question on Illustration of the abbreviation - compound condition, Get Answer, Expert's Help, Illustration of the abbreviation - compound condition Discussions

Write discussion on Illustration of the abbreviation - compound condition
Your posts are moderated
Related Questions
INDEXED TABLES: The OCCURS clause that is used to define tables can optionally have an INDEXED phrase. This phrase involves the names of data items which are to be used as sub

IF STATEMENT: The easiest form of the IF statement is  IF condition-1 statement-1 where the condition-1 may be any one from the shown below. When the condition-1

Comparison of the Numeric Operand with Nonnumeric Operand: The numeric operand can be compared to the nonnumeric operand subject to the restrictions which are as follows.

FILE DESCRIPTION- FIXED-LENGTH RECORDS: The normal characteristics of a file are explained in the file description (FD) entry of the DATA DIVISION.

CONDITIONS-NAME CONDITION:   The condition name is an entity which itself is a condition and these can have either a true or false value. Though, a condition name cannot be d

Non numeric: The nonnumeric literal is used in normal to output messages or headings. The Characters which are enclosed between " " constitute nonnumeric literal. The maximum

WRITE statement: The WRITE statement for tape and sequential-disk files has the syntax shown below. WRITE            record-name      [  FROM    identifier   ] As a resu

what does it used

PROGRAM FOR PERFORM - VARYING: We have to write a program to elaborate PERFORM ...VARYING Identification division. Program- id. PerfVary. Environment division. Dat

ADD and SUBTRACT CORRESPONDING: The CORRESPONDING option can also used with the ADD and SUBTRACT verbs. The following are some of the formats of these verbs with the CORRESPON