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ISO/IEC 9899:2018現行

Information technology - Programming languages - C

出版：International Organization for Standardization

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基本信息
標準編號： ISO/IEC 9899:2018
發布時間：2018/7/5 0:00:00
標準類別：Standard
出版單位：International Organization for Standardization
標準頁數：520
標準簡介

1 With the introduction of new devices and extended character sets, new features could be added to thisdocument. Subclausesinthelanguageandlibraryclauseswarnimplementorsandprogrammers of usages which, though valid in themselves, could conflict with future additions. 2 Certain features are obsolescent, which means that they could be considered for withdrawal in future revisions of this document. They are retained because of their widespread use, but their use in new implementations (for implementation features) or new programs (for language [6.11] or library features [7.31]) is discouraged. 3 This document is divided into four major subdivisions: — preliminary elements (Clauses 1–4); — the characteristics of environments that translate and execute C programs (Clause 5); — the language syntax, constraints, and semantics (Clause 6); — the library facilities (Clause 7). 4 Examples are provided to illustrate possible forms of the constructions described. Footnotes are provided to emphasize consequences of the rules described in that subclause or elsewhere in this document. References are used to refer to other related subclauses. Recommendations are provided to give advice or guidance to implementors. Annexes define optional features, provide additional information and summarize the information contained in this document. A bibliography lists documents that were referred to during the preparation of this document. 5 The language clause (Clause 6) is derived from "The C Reference Manual". 6 The library clause (Clause 7) is based on the 1984 /usr/group Standard. 7 The Working Group responsible for this document (WG 14) maintains a site on the World Wide Web at http://www.open-std.org/JTC1/SC22/WG14/ containing ancillary information that may be of interest to some readers such as a Rationale for many of the decisions made during its preparation and a log of Defect Reports and Responses.