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【英文标准名称】:Informationtechnology--Programminglanguages,theirenvironmentsandsystemsoftwareinterfaces--Language-independentdatatypes
【原文标准名称】:信息技术.程序设计语言及其环境和系统软件接口.语言依赖性数据类型
【标准号】:ANSIINCITS/ISO/IEC11404-1996(R2007)
【标准状态】:现行
【国别】:美国
【发布日期】:1996-12-15
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesthenomenclatureandsharedsemanticsforacollectionofdatatypescommonlyoccurringinprogramminglanguagesandsoftwareinterfaces,referredtoastheLanguage-Independent(LI)Datatypes.Itspecifiesbothprimitivedatatypes,inthesenseofbeingdefinedabinitiowithoutreferencetootherdatatypes,andnon-primitivedatatypes,inthesenseofbeingwhollyorpartlydefinedintermsofotherdatatypes.ThespecificationofdatatypesinthisInternationalStan-dardis"language-independent"inthesensethatthedatatypesspecifiedareclassesofdatatypesofwhichtheactualdatatypesusedinprogramminglanguagesandotherentitiesrequiringtheconceptdatatypeareparticularinstances.ThisInternationalStandardexpresslydistinguishesthreenotionsof"datatype",namely:~theconceptual,orabstract,notionofadatatype,whichcharacterizesthedatatypebyitsnominalvaluesandproperties;~thestructuralnotionofadatatypc,whichcharacterizesthedatatypeasaconceptualorganizationofspecificcomponentdatatypeswithspecificfunctionalities;and~theimplementationnotionofadatatype,whichcharacterizesthedatatypebydefiningtherulesforrepresentationofthedatatypeinagivenenvironment.ThisInternationalStandarddefinestheabstractnotionsofmanycommonlyusedprimitiveandnon-primitivedatatypeswhichpossessthestructuralnotionofatomicity.ThisInternationalStandarddoesnotdefineallatomicdatatypes;itdefinesonlythosewhicharecommoninprogramminglanguagesandsoftwareinterfaces.ThisInternationalStandarddefinesstructuralnotionsforthespecificationofothernon-primitivedatatypesandprovidesameansbywhichdatatypesnotdefinedhereincanbedefinedstructurallyintermsoftheLIdatatypesdefinedherein.ThisInternationalStandarddefinesapartialvocabularyforimplementationnotionsofdatatyposandprovidesfor,butdoesnotrequire,theuseofthisvocabularyinthedefinitionofdatatypes.Theprimarypurposeofthisvocabularyistoidentifycommonimplementationnotionsassociatedwithdatatypesandtodistinguishthemfromconceptualnotions.SpecificationsfortheuseofimplementationnotionsaredeemedtobeoutsidethescopeofthisInternationalStandard,whichisconcernedsolelywiththeidentificationanddistinctionofdatatypes.ThisInternationalStandardspecifiestherequiredelementsofmappingsbetweentheLIdatatypesandthedatatypcsofsomeotherlanguage.ThisInternationalStandarddoesnotspecifythepreciseformofamapping,butrathertherequiredinformationcontentofamapping.
【中国标准分类号】:L74
【国际标准分类号】:35_060
【页数】:103P.;A4
【正文语种】:英语