C-C+++Reference

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1、C/C++ReferenceGeneralC/C++C++Pre-processorcommandsC++I/OOperatorPrecedenceC++StringsEscapeSequencesASCIIChartC++StandardTemplateLibraryDataTypesKeywordsC++BitsetsC++Double-EndedQueuesStandardCLibrary:C++ListsC++MapsStandardCI/OC++MultimapsStandardCString&CharacterC++Mu

2、ltisetsStandardCMathC++PriorityQueuesStandardCTime&DateC++QueuesStandardCMemoryC++SetsOtherstandardCfunctionsC++StacksC++VectorsIteratorsAllCFunctionsAllC++FunctionsQuestions?CheckouttheFAQorcontactus.Herearesomeotherlanguagereferences.Lastmodifiedon1/25/2004byNateKohl

3、,withhelpfromalotofpeople.cppreference.com->Pre-processorcommandsPre-processorcommands#,##manupilatestrings#definedefinevariables#errordisplayanerrormessage#if,#ifdef,#ifndef,#else,#elif,#endifconditionaloperators#includeinsertthecontentsofanotherfile#linesetlineandfil

4、einformation#pragmaimplementationspecificcommand#undefundefinevariablesPredefinedvariablesmiscellaneousvariablescppreference.com->Pre-processorcommands->DetailsPre-processorcommands#,##The#and##operatorsareusedwiththe#definemacro.Using#causesthefirstargumentafterthe#to

5、bereturnedasastringinquotes.Forexample,thecommand#defineto_string(s)#swillmakethecompilerturnthiscommandcout<

6、#y...intxy=10;...willmakethecompilerturncout<

7、words,#definecausesthecompilertogothroughthefile,replacingeveryoccurrenceofmacro-namewithreplacement-string.Thereplacementstringstopsattheendoftheline.Here'satypicalusefora#define(atleastinC):#defineTRUE1#defineFALSE0...intdone=0;while(done!=TRUE){...}Anotherfeatureoft

8、he#definecommandisthatitcantakearguments,makingitratherusefulasapseudo-functioncreator.Considerthefollowingcode:#defi