BABAR C++ Course Running the Examples - HEPHY

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Higher Level of AbstractionNow do you recognize them?∇ • E = 4πρ∇ × B =∇ • B = 04πc J 1 ∂E+c ∂t∇ × E=1 ∂B−c ∂tor even∂ αF αβ=4πc J β12 εαβγδ ∂ αF γδ = 0 = ∂ α F βγ + ∂ β F γα + ∂ γ F αβTo advance in physics/math, we need higher levels ofabstractions, else we get lost in implementation detailsC++ allows higher level of abstract as wellBABAR C++ Course 98 Paul F. Kunz
Plan of the daySimpleFloatArray ClassWhere are we at?• session 1: basic language constructs• session 2: pointers and functions• session 3: basic class and operator overloadingToday• design of two types of container classes• templates• friend• nested classesDesign and implement an array class with• run time sizing• access to element with x[i]• automatic memory management• automatic copy of array elements• automatic copy upon assignment• set all elements of array to a value• find the current size• dynamic resizingEach requirement leads to a member functionThere will be some technical issues to learnBABAR C++ Course 99 Paul F. KunzBABAR C++ Course 100 Paul F. Kunz
Page 1 and 2: BABAR C++ CourseRunning the Example
Page 3 and 4: C++ Input and OutputMore on I/OIntr
Page 5 and 6: Declaring types and initializingTyp
Page 7 and 8: Relational OperatorsLogical operato
Page 9 and 10: Assignment operatorsOperator Preced
Page 11 and 12: Coding Styleswhile loopC/C++ is fre
Page 13 and 14: do-while Examplefor loopSnippet fro
Page 15 and 16: ArraysExample Code and a TestA coll
Page 17 and 18: Plan of the dayFunctionsFunctionsPo
Page 19 and 20: Header files used with definitionHe
Page 21 and 22: Functions in CHeader FilesFunction
Page 23 and 24: Pointers and ArraysPointer Arithmet
Page 25 and 26: Progression towards C++ styleExampl
Page 27 and 28: Line fit continuedCharacter Strings
Page 29 and 30: Formal ArgumentsReferencesConsider(
Page 31 and 32: More on declarationsconst PointerWe
Page 33 and 34: Inline FunctionsSummarySometimes, t
Page 35 and 36: ThreeVectorUsing a class objectCLHE
Page 37 and 38: Use of private keywordInitializing
Page 39 and 40: Access member functionsInline acces
Page 41 and 42: C++ designHomeworkC++ style• effi
Page 43 and 44: Member InitializersFunction Return
Page 45 and 46: Operator Function ImplementationCom
Page 47 and 48: Need Symmetric Operator FunctionsTh
Page 49: SummaryLevels of Abstraction in Phy
Page 53 and 54: Constructor Implementationscopy Imp
Page 55 and 56: operator= Member FunctionAssignment
Page 57 and 58: Key pointsClass explosion?• shoul
Page 59 and 60: Function TemplatesList or Array?Rem
Page 61 and 62: The Node and List classesProblemsDe
Page 63 and 64: IteratorsIterators++CompareSimpleAr
Page 65 and 66: Standard Template Library (STL)Feat
Page 67 and 68: Recall our test programPossible 4-V
Page 69 and 70: Use of Lorentz VectorMemory modelCo
Page 71 and 72: Even more of ImplementationWhat’s
Page 73 and 74: Class HierarchyObject HierarchyIn c
Page 75 and 76: Class hierarchyLockable classFor bo
Page 77 and 78: The classes involvedmain.ccFrom CLH
Page 79 and 80: Do particle type identificationIden
Page 81 and 82: Finally, find all B 0 -> D * D *Sum
Page 83 and 84: Particle Data Table classLayoutHist
Page 85 and 86: PDTEntry classDecayMode classParts
Page 87 and 88: Gismo HistorySome Gismo ClassesVers
Page 89 and 90: Surface classPlane classPart of the
Page 91 and 92: Gismo VolumePart of implementationP
Page 93 and 94: Back to implementationFollowing the
Page 95 and 96: As expectedVirtual destructorIn Cir

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