Compatibility Guide

Table of Contents

Index

Chapter 2: Microsoft COBOL V2.2 Source Compatibility

• 2.1 Configuring your System
• 2.2 Migrating your Application
• 2.3 Conversion Issues
  • 2.3.1 General
    • 2.3.1.1 Source Code Beyond Column 72
  • 2.3.2 COBOL Concepts
    • 2.3.2.1 COMP-3 Sign Representation
    • 2.3.2.2 Declaratives
  • 2.3.3 The Nucleus
    • 2.3.3.1 Special-Names Paragraphs
    • 2.3.3.2 The EJECT Statement
    • 2.3.3.3 PICTURE Strings
    • 2.3.3.4 The SEGMENT-LIMIT Clause
    • 2.3.3.5 The REDEFINES Clause
    • 2.3.3.6 The VALUE Clause
  • 2.3.4 File Input and Output
    • 2.3.4.1 Filenames
    • 2.3.4.2 OPEN ... EXTEND
    • 2.3.4.3 Record Locking
    • 2.3.4.4 Deleting Relative Records
    • 2.3.4.5 Rebuild
  • 2.3.5 Debug
    • 2.3.5.1 TRACE Statements
  • 2.3.6 Inter-Program Communication
    • 2.3.6.1 The ON OVERFLOW Phrase
  • 2.3.7 Screen Handling
    • 2.3.7.1 Accepting into Numeric Fields
    • 2.3.7.2 Accepting into Alphabetic Fields
    • 2.3.7.3 Numeric edited Items
    • 2.3.7.4 Incorrect Spacing
    • 2.3.7.5 Clearing the Screen
    • 2.3.7.6 Screen Scrolling
    • 2.3.7.7 Sounding the Bell
    • 2.3.7.8 Extension Subroutines
• 2.4 Add-on Products from Micro Focus