TECHNICAL ISO/IEC REPORT TR 24731-1 First edition 2007-09-01 Information technology Programming languages, their environments and system software interfaces Extensions to the C library Part 1: Bounds-checking interfaces Technologies de I'information Langages de programmation, leurs environnements et leurs systemes d'interface de logiciel Extensions a la bibliotheque C - Partie 1: Interfaces des controles des bornes Reference number ISO/IEC TR 24731-1:2007(E) IEC @ISO/IEC2007 THS under ted without license from IHS Not for Resale ISO/IEC TR 24731-1:2007(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO/IEC2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO/IEC 2007-All rights reserved py IHS unde I without license from IHS Not for Resale ISO/IEC TR 24731-1:2007(E) Contents Foreword L Introduction vi 1. Scope 2. Normative references 1 3. Terms, definitions, and symbols 2 4. Conformance 2 5. Predefined macro names 2 6. Library 3 6.1 Introduction 3 6.1.1 Standard headers 3 6.1.2 Reserved identifiers 4 6.1.3 Use of errno 4 6.1.4 Runtime-constraint violations 4 6.2 Errors <errno.h> 5 6.3 Common definitions <stddef .h> 6 6.4 Integer types <stdint.h> 7 6.5 Input/output <stdio.h> 8 6.5.1 Operations on files 8 6.5.2 File access functions 10 6.5.3 Formatted input/output functions 13 6.5.4 Character input/output functions 26 6.6 General utilities <stdlib.h> 28 6.6.1 Runtime-constraint handling 28 6.6.2 Communication with the environment 30 6.6.3 Searching and sorting utilities 31 6.6.4 Multibyte/wide character conversion functions 34 6.6.5 Multibyte/wide string conversion functions 35 6.7 String handling <string.h> 39 6.7.1 Copying functions 39 6.7.2 Concatenation functions 43 6.7.3 Search functions 45 6.7.4 Miscellaneous functions 47 6.8 Date and time <time.h> 49 6.8.1 Components of time 49 6.8.2 Time conversion functions 49 6.9 Extended multibyte and wide character utilities <wchar .h> 53 6.9.1 Formatted wide character input/output functions 53 6.9.2 General wide string utilities 64 CopyrightInternatinal Oorganizain for standardization All rights reserved ii e with I: Not for Resale ISO/IEC TR 24731-1:2007(E) 6.9.3 Extended multibyte/wide character conversion utilities 73 Bibliography 78 Index 79 @ISO/IEC 2007-All rights reserved vided by IHS under lice itted without license from IHS Not for Resale ISO/IEC TR 24731-1:2007(E) Foreword ISO (the International Organization for Standardization) and IE (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of Iso or IEc participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. IsO and IEC technology, ISO and IEC