Using a Compiler Listing

Using a Compiler Listing

This section discusses how to obtain a listing and how to use it to

¹ Fix compilation errors

¹ Fix run-time errors

¹Provide documentation for maintenance purposes.

See Appendix D, “Compiler Listings” on page 423 for more information on ferent parts of the listing and for a complete sample listing.

Obtaining a Compiler

Listing

 

 

 

 

To

obtain

a compiler listing specify OUTPUT(*PRINT) on

either the CRTBN

command or the CRTRPGMOD command. (This is their default setting.) The

ification OUTPUT(*NONE) will suppress a listing.

 

Specifying

OUTPUT(*PRINT)

results in a compiler listing

minwhimallych consists

of

the following

sections:

 

¹

Prologue

(command option summary)

 

¹

Source

Listing,

which

includes:

 

In-Line diagnostic messages

Match-field table (if using the RPG cycle with match fields)

¹

Additional diagnostic messages

¹

Field Positions in Output Buffer

¹

/COPY

Member

Table

¹

Compile

Time

Data which includes:

Alternate Collating Sequence records and table or NLSS information a table

– File translation records

Array records

Table records

¹Message summary

¹Final summary

¹

Code generation

report

(appears

only if there are errors)

¹

Binding report

(applies

only to

CRTBNDRPG; appears only if there ar

The following additional information is included in a compiler listing if priate value is specified on the OPTION parameter of either create

*EXPDDS

Specifications of externally-described files (appear in sourc listing)

*SHOWCPY

Source records of /COPY members (appear in source section o

Chapter 6. Creating a Program with the CRTBNDRPG Command63

Page 87
Image 87
IBM AS/400 manual Using a Compiler Listing, Obtaining a Compiler

AS/400 specifications

The IBM AS/400, now known as the IBM iSeries, is a midrange computer system that has been a cornerstone of enterprise computing since its introduction in 1988. Designed to provide a robust platform for business applications, the AS/400 is celebrated for its reliability, scalability, and integrated database capabilities.

One of the key features of the AS/400 is its Integrated Operating Environment, which blends hardware and software resources seamlessly. This integration allows businesses to execute diverse workloads, ranging from traditional applications to modern web-based services, all on a single platform. The operating system, OS/400 (now IBM i), offers a rich set of APIs and tools for developers, simplifying application development and management.

Another standout characteristic of the AS/400 is its built-in database, DB2 for i. This powerful relational database management system allows for efficient data handling and provides advanced features such as support for SQL, XML, and JSON, making it easier for businesses to manage their data and integrate it with other systems. The database's tight integration with the operating system enables high performance and security.

In terms of scalability, the AS/400 can accommodate small businesses as well as large enterprises, with the ability to support hundreds of users simultaneously. Its architecture allows for easy upgrades in hardware, meaning that organizations can scale their systems without replacing the entire infrastructure.

Security is another critical attribute of the AS/400. With a sophisticated security model, it offers built-in user authentication, access control, encryption, and auditing capabilities to protect data and applications from unauthorized access.

The AS/400 also supports multiple programming languages, including RPG, COBOL, Java, and PHP, giving organizations the flexibility to choose the development tools that best fit their needs. This diversity helps maintain legacy applications while also developing new ones that leverage modern technologies.

Moreover, the platform supports both traditional green-screen interfaces and modern graphical user interfaces, allowing organizations to transition smoothly into contemporary user experience paradigms.

Overall, the IBM AS/400 stands out as a resilient, flexible, and secure computing platform that enables organizations to effectively manage their business operations, streamline processes, and adapt to changing market demands. Its unique combination of integrated features and capabilities ensures that it remains relevant in today's fast-paced technology landscape.