GT.M Programmers Guide V7.0-000 GT.M Programmer's Guide Publication date February 12, 2021 Copyright © 2011-2019 Fidelity National Information Services, Inc. and/or its subsidiaries. All rights reserved. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. GT.M™ is a trademark of Fidelity National Information Services, Inc. Other trademarks are the property of their respective owners. This document contains a description of GT.M and the operating instructions pertaining to the various functions that comprise the system. This document does not contain any commitment of FIS. FIS believes the information in this publication is accurate as of its publication date; such information is subject to change without notice. FIS is not responsible for any errors or defects. Revision History Revision V7.0-000 12 February 2021 Updated the following chapters for V7.0-000: • Chapter 10: “Utility Routines” (page 434) Revision V6.3-014 06 October 2020 Updated the following chapters for V6.3-014: • Chapter 3: “Development Cycle” (page 32) • Chapter 6: “Commands” (page 105) • Chapter 11: “Integrating External Routines” (page 506) Revision V6.3-013 30 June 2020 Updated the following chapters for V6.3-013: • Chapter 6: “Commands” (page 105) Revision V6.3-012 08 April 2020 Updated the following chapters for V6.3-012: • Chapter 7: “Functions” (page 208) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 10: “Utility Routines” (page 434) • Chapter 11: “Integrating External Routines” (page 506) Revision V6.3-011 20 December 2019 Updated the following chapters for V6.3-011: • Chapter 6: “Commands” (page 105) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 10: “Utility Routines” (page 434) • Chapter 12: “Internationalization” (page 528) Revision V6.3-010 31 October 2019 Updated the following chapters for V6.3-010: • Chapter 6: “Commands” (page 105) • Chapter 7: “Functions” (page 208) • Chapter 12: “Internationalization” (page 528) Revision V6.3-009 27 June 2019 Updated the following chapters for V6.3-009: • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 10: “Utility Routines” (page 434) • Chapter 11: “Integrating External Routines” (page 506) Revision V6.3-008 24 April 2019 Updated the following chapters for V6.3-008: • Chapter 2: “GT.M Language Extensions” (page 5) • Chapter 6: “Commands” (page 105) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 10: “Utility Routines” (page 434) Revision V6.3-007 04 February 2019 Updated the following chapters for V6.3-007: • Chapter 6: “Commands” (page 105) • Chapter 4: “Operating and Debugging in Direct Mode” (page 50) • Chapter 13: “Error Processing” (page 547) • Chapter 7: “Functions” (page 208) • Chapter 5: “General Language Features of M” (page 67) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 14: “Triggers” (page 576) • Chapter 10: “Utility Routines” (page 434) Revision V6.3-006 26 October 2018 Updated the following chapters for V6.3-006: • Chapter 6: “Commands” (page 105) • Chapter 7: “Functions” (page 208) • Chapter 5: “General Language Features of M” (page 67) • Chapter 2: “GT.M Language Extensions” (page 5) • Chapter 12: “Internationalization” (page 528) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 3: “Development Cycle” (page 32) • Chapter 11: “Integrating External Routines” (page 506) • Chapter 10: “Utility Routines” (page 434) Revision V6.3-005 29 June 2018 Updated the following chapters for V6.3-005: • Chapter 1: “About GT.M” (page 1) • Chapter 6: “Commands” (page 105) • Chapter 4: “Operating and Debugging in Direct Mode” (page 50) • Chapter 13: “Error Processing” (page 547) • Chapter 7: “Functions” (page 208) • Chapter 5: “General Language Features of M” (page 67) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 14: “Triggers” (page 576) • Chapter 11: “Integrating External Routines” (page 506) Revision V6.3-004 23 March 2018 Updated the following chapters for V6.3-004: • Chapter 6: “Commands” (page 105) • Chapter 7: “Functions” (page 208) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 14: “Triggers” (page 576) • Chapter 10: “Utility Routines” (page 434) Revision V6.3-003 12 December 2017 Updated the following chapters for V6.3-003: • Chapter 1: “About GT.M” (page 1) • Chapter 6: “Commands” (page 105) • Chapter 4: “Operating and Debugging in Direct Mode” (page 50) • Chapter 13: “Error Processing” (page 547) • Chapter 7: “Functions” (page 208) • Chapter 5: “General Language Features of M” (page 67) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 14: “Triggers” (page 576) Revision V6.3-002 22 August 2017 Updated the following chapters for V6.3-002: • Chapter 1: “About GT.M” (page 1) • Chapter 6: “Commands” (page 105) • Chapter 5: “General Language Features of M” (page 67) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 10: “Utility Routines” (page 434) Revision V6.3-001 20 March 2017 Updated the following chapters for V6.3-001: • Chapter 6: “Commands” (page 105) • Chapter 13: “Error Processing” (page 547) • Chapter 7: “Functions” (page 208) • Chapter 5: “General Language Features of M” (page 67) • Chapter 2: “GT.M Language Extensions” (page 5) • Chapter 12: “Internationalization” (page 528) • Chapter 8: “Intrinsic Special Variables” (page 284) • Chapter 9: “Input/Output Processing” (page 331) • Chapter 3: “Development Cycle” (page 32) • Chapter 14: “Triggers” (page 576) • Chapter 11: “Integrating External Routines” (page 506) • Chapter 10: “Utility Routines” (page 434) Revision V6.1-000 28 August 2014 Updated for V6.1-000. For chapter-specific revisions, refer to Chapter 2: “GT.M Language Extensions” (page 5), Chapter 6: “Commands” (page 105), Chapter 7: “Functions” (page 208), Chapter 8: “Intrinsic Special Variables” (page 284), Chapter 9: “Input/Output Processing” (page 331), and Chapter 11: “Integrating External Routines” (page 506). Revision V6.0-003 24 February 2014 Updated for V6.0-002 and V6.0-003. For chapter-specific revisions, refer to Chapter 3, Development Cycle [32], Chapter 6: “Commands” (page 105), Chapter 7: “Functions” (page 208), Chapter 8: “Intrinsic Special Variables” (page 284), Chapter 9: “Input/Output Processing” (page 331), Chapter 11: “Integrating External Routines” (page 506) and Chapter 13: “Error Processing” (page 547). Revision V6.0-001 21 March 2013 Updated for V6.0-001. For chapter-specific revisions, refer to Chapter 3, Development Cycle [32], Chapter 5: “General Language Features of M” (page 67), Chapter 6: “Commands” (page 105), Chapter 7: “Functions” (page 208), Chapter 9: “Input/Output Processing” (page 331), Chapter 10: “Utility Routines” (page 434), Chapter 11: “Integrating External Routines” (page 506), and Chapter 13: “Error Processing” (page 547). Revision V6.0-000 19 November 2012 Updated for V6.0-000. For chapter-specific revisions, refer to Chapter 6: “Commands” (page 105) and Chapter 9: “Input/Output Processing” (page 331). Table of Contents About This Manual .......................................................................................................................................................... ix 1. About GT.M ................................................................................................................................................................. 1 2. GT.M Language Extensions ........................................................................................................................................... 5 3. Development Cycle ..................................................................................................................................................... 32 4. Operating and Debugging in Direct Mode .................................................................................................................... 50 5. General Language Features of M ................................................................................................................................. 67 6. Commands ................................................................................................................................................................ 105 7. Functions ................................................................................................................................................................... 208 8. Intrinsic Special Variables .......................................................................................................................................... 284 9. Input/Output Processing ............................................................................................................................................ 331 10. Utility Routines ........................................................................................................................................................ 434 11. Integrating External Routines ................................................................................................................................... 506 12. Internationalization