Example ObjVector copy 009

 

 

Description

This example shows how a Vector may be modified destructively or non-destructively using the the copy and setq function.

 

Details

The original Vector.

(define x #(obj| #{A: 1 B: 2} #(1 2 ) )) Returns: #<ObjVector 123456>

The copied Vector using the copy function.

(setq z (copy x)) Returns: #<ObjVector 234567>

The copied Vector using the setq function.

(setq twin x) Returns: #<ObjVector 345678>

The container named z is a copy of x (both are Vectors) and z has a separate memory space. However, the containers named x and twin point to the same memory spaces on the heap. Therefore

(setq twin[1] #{dic| A: 1 B: 2} ) Returns: #<ObjVector 123456>

The setq command results in the contents of both twin and x being both the same.

twin[1] Returns: #{dic| A: 1 B: 2}
x[1] Returns: #{dic| A: 1 B: 2}

Since z points to a different memory space, it still retained the original value which was copied from x before the values of x were modified.

z[1] Returns: #(1 2 )

Notes and Hints

Using the setq function results in objects having the same object id. But the object that is being assigned the copied object has a different object id than original object. In this example twin and x have the same object id while z has a different object id.

 

Related Examples

Here are examples of the copy function at work.

BitVector copy 011 Brick copy 012 CpxVector copy 013 Dictionary copy 002
Directory copy 003 FltVector copy 006 IntVector copy 007 List copy 010
Matrix copy 006 Matrix copy 007 NumMatrix copy 011 NumVector copy 008
ObjVector copy 009 Pair copy 009 PcodeVector copy 010 ShortVector copy 008
Structure copy 001 Vector copy 004 Vector copy 005

 

Function Links

Here is the link to the current function used in this example.

copy

Here are a number of links to other related functions.

setq(ObjVector)

 

Argument Types

Here are the links to the data types of the arguments used in this example.

ObjVector

Here are a number of links to examples having similar argument types.

BitVector addMethod 023 Context globalBinding 001 Dictionary isDictionary 001 Dictionary objectToDictionary 001
Dictionary objectToDictionary 002 Dictionary objectToDictionary 003 Dictionary objectToDictionary 004 Dictionary refAttributes 002
Dictionary setAttributes 002 Directory objectToDirectory 001 Directory objectToDirectory 002 Directory objectToDirectory 003
Directory objectToDirectory 004 Directory refAttributes 003 Directory setAttributes 003 NumVector svmRegression 001
ObjVector addMethod 022 ObjVector append 009 ObjVector compare 017 ObjVector compareEQ 014
ObjVector compareGE 014 ObjVector compareGT 014 ObjVector compareLE 014 ObjVector compareLT 014
ObjVector compareNE 014 ObjVector comparison functions 014 ObjVector copy 009 ObjVector delete 012
ObjVector insert 008 ObjVector isAtom 008 ObjVector isEqual 016 ObjVector isIdentical 015
ObjVector isObject 010 ObjVector isObjectVector 001 ObjVector isType 019 ObjVector length 011
ObjVector member 007 ObjVector ref 025 ObjVector remove 007 ObjVector resize 009
ObjVector reverse 006 ObjVector setCdr 009 ObjVector setLastCdr 009 ObjVector setq 022
ObjVector sizeof 017 ObjVector type 019 ObjVector uniqueInsert 007 ObjVector vectorFill 006
ObjectRepository exportTab 001 ObjectRepository importTab 001 String isChar 001 String isCharAlphabetic 001
String isCharAlphanumeric 001 String isCharLowercase 001 String isCharName 001 String isCharNumeric 001
String isCharUppercase 001 String isCharWhitespace 001 String isEqual 001 String isEqual 002
String isObject 001 String isString 001 String isText 001 String isType 001
String isType 002 String isType 003 String sizeof 001 String string 001
String string 002 String string 003 String stringToBVector 001 String stringToBVector 002
String stringToBVector 003 String stringToVector 001 String stringToVector 002 String stringToVector 003
String stringToVector 004 String type 001 Structure objectToStructure 001 Structure objectToStructure 002
Structure objectToStructure 003 Structure objectToStructure 004 Structure refAttributes 001 Structure setAttributes 001
Symbol isCharName 002 Symbol isCharNumeric 002 Symbol isObject 002 Symbol isSymbol 001
Symbol isType 004 Symbol sizeof 002 Symbol type 002 Vector refAttributes 004
Vector refValues 004 Vector setAttributes 004 Vector setAttributes 005

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