gc

 

 

Description

The gc function initiates a garbage collection, or a garbage collection with memory compaction, or turns garbage collection on or off.

When to use

The gc function can be used to initiate a garbage collection with or without memory compaction.

 

Syntax

(gc command)



Name Description AIS Types
command(Missing) No command argument initiates a garbage collection. (compact:) A command argument of the symbol compact: initiates a garbage collection with memory compaction. (true) A command argument of the boolean true turn automatic garbage collection on. (false) A command argument of the boolean false turn automatic garbage collection off. Context


Returns:

true.

 

Examples

Here are a number of links to Lambda coding examples which contain this instruction in various use cases.

 

Argument Types

Here are the links to the data types of the function arguments.

Boolean Symbol

Here are also a number of links to functions having arguments with any of these data types.

++(Symbol) +=(Symbol) /=(Symbol) *=(Symbol)
--(Symbol) -=(Symbol) abortTransaction(ObjectRepository) addMethod(BitVector)
addMethod(Boolean) addMethod(Brick) addMethod(Character) addMethod(CpxVector)
addMethod(Date) addMethod(Dictionary) addMethod(Directory) addMethod(FltVector)
addMethod(Function) addMethod(IntVector) addMethod(List) addMethod(Matrix)
addMethod(NumMatrix) addMethod(NumVector) addMethod(Number) addMethod(ObjVector)
addMethod(ObjectRepository) addMethod(Pair) addMethod(PcodeVector) addMethod(ShortVector)
addMethod(String) addMethod(Structure) addMethod(Symbol) addMethod(Vector)
addMethod(Void) append(BitVector) append(Complex) append(CpxVector)
append(FltVector) append(IntVector) append(Matrix) append(NumMatrix)
append(NumVector) append(ObjVector) append(Pair) append(ShortVector)
append(String) append(Structure) append(Symbol) append(Vector)
apply(BitVector) apply(CpxVector) apply(FltVector) apply(IntVector)
apply(Matrix) apply(NumMatrix) apply(NumVector) apply(Pair)
apply(ShortVector) apply(Structure) apply(Vector) badd(Boolean)
bcompareEQ(Boolean) bcompareGE(Boolean) bcompareGT(Boolean) bcompareLE(Boolean)
bcompareLT(Boolean) bcompareNE(Boolean) bdiv(Boolean) beginTransaction(ObjectRepository)
binaryInsert(CpxVector) binaryInsert(FltVector) binaryInsert(IntVector) binaryInsert(Matrix)
binaryInsert(NumMatrix) binaryInsert(NumVector) binaryInsert(ShortVector) binaryInsert(Structure)
binaryInsert(Vector) binaryNand(Integer) binaryNor(Integer) binaryNot(Integer)
binaryNxor(Integer) binarySearch(CpxVector) binarySearch(Dictionary) binarySearch(FltVector)
binarySearch(IntVector) binarySearch(Matrix) binarySearch(NumMatrix) binarySearch(NumVector)
binarySearch(ObjVector) binarySearch(ShortVector) binarySearch(Structure) binarySearch(Vector)
bitwiseAnd(Integer) bitwiseNand(Integer) bitwiseNor(Integer) bitwiseNot(Integer)
bitwiseNxor(Integer) bitwiseOr(Integer) bitwiseShiftLeft(Integer) bitwiseShiftRight(Integer)
bitwiseXor(Integer) bmod(Boolean) bmul(Boolean) boolean(Boolean)
ccompareEQ(Character) ccompareGE(Character) ccompareGT(Character) ccompareLE(Character)
ccompareLT(Character) ccompareNE(Character) cdr(BitVector) cdr(Brick)
cdr(CpxVector) cdr(Dictionary) cdr(Directory) cdr(FltVector)
cdr(IntVector) cdr(List) cdr(Matrix) cdr(NumMatrix)
cdr(NumVector) cdr(ObjVector) cdr(ShortVector) cdr(Structure)
cdr(Vector) character(Character) checkPointTransaction(ObjectRepository) clear(Context)
clear(ObjectRepository) commitTransaction(ObjectRepository) compareEQ(BitVector) compareEQ(Boolean)
compareEQ(Brick) compareEQ(Character) compareEQ(Complex) compareEQ(CpxVector)
compareEQ(Date) compareEQ(Dictionary) compareEQ(Directory) compareEQ(FltVector)
compareEQ(Function) compareEQ(IntVector) compareEQ(Lambda) compareEQ(List)
compareEQ(Matrix) compareEQ(NumMatrix) compareEQ(NumVector) compareEQ(Number)
compareEQ(ObjVector) compareEQ(ObjectRepository) compareEQ(Pair) compareEQ(ShortVector)
compareEQ(String) compareEQ(Structure) compareEQ(Symbol) compareEQ(Vector)
compareEQ(Void) compareGE(BitVector) compareGE(Boolean) compareGE(Brick)
compareGE(Character) compareGE(Complex) compareGE(CpxVector) compareGE(Date)
compareGE(Dictionary) compareGE(Directory) compareGE(Function) compareGE(IntVector)
compareGE(Lambda) compareGE(List) compareGE(Matrix) compareGE(NumMatrix)
compareGE(Number) compareGE(ObjVector) compareGE(ObjectRepository) compareGE(Pair)
compareGE(ShortVector) compareGE(String) compareGE(Structure) compareGE(Symbol)
compareGE(Vector) compareGE(Void) compareGT(BitVector) compareGT(Boolean)
compareGT(Brick) compareGT(Character) compareGT(Complex) compareGT(CpxVector)
compareGT(Date) compareGT(Dictionary) compareGT(Directory) compareGT(Function)
compareGT(IntVector) compareGT(Lambda) compareGT(List) compareGT(Matrix)
compareGT(NumMatrix) compareGT(NumVector) compareGT(Number) compareGT(ObjVector)
compareGT(ObjectRepository) compareGT(Pair) compareGT(ShortVector) compareGT(String)
compareGT(Structure) compareGT(Symbol) compareGT(Vector) compareGT(Void)
compareLE(BitVector) compareLE(Boolean) compareLE(Brick) compareLE(Character)
compareLE(Complex) compareLE(CpxVector) compareLE(Date) compareLE(Dictionary)
compareLE(Directory) compareLE(FltVector) compareLE(Function) compareLE(IntVector)
compareLE(Lambda) compareLE(List) compareLE(Matrix) compareLE(NumMatrix)
compareLE(NumVector) compareLE(Number) compareLE(ObjVector) compareLE(ObjectRepository)
compareLE(Pair) compareLE(ShortVector) compareLE(String) compareLE(Structure)
compareLE(Symbol) compareLE(Vector) compareLE(Void) compareLT(BitVector)
compareLT(Boolean) compareLT(Brick) compareLT(Character) compareLT(Complex)
compareLT(CpxVector) compareLT(Date) compareLT(Dictionary) compareLT(Directory)
compareLT(FltVector) compareLT(Function) compareLT(IntVector) compareLT(Lambda)
compareLT(List) compareLT(Matrix) compareLT(NumMatrix) compareLT(NumVector)
compareLT(Number) compareLT(ObjVector) compareLT(ObjectRepository) compareLT(Pair)
compareLT(ShortVector) compareLT(String) compareLT(Structure) compareLT(Symbol)
compareLT(Vector) compareLT(Void) compareNE(BitVector) compareNE(Boolean)
compareNE(Brick) compareNE(Character) compareNE(Complex) compareNE(CpxVector)
compareNE(Date) compareNE(Dictionary) compareNE(Directory) compareNE(FltVector)
compareNE(Function) compareNE(IntVector) compareNE(Lambda) compareNE(List)
compareNE(Matrix) compareNE(NumMatrix) compareNE(NumVector) compareNE(Number)
compareNE(ObjVector) compareNE(ObjectRepository) compareNE(Pair) compareNE(ShortVector)
compareNE(String) compareNE(Structure) compareNE(Symbol) compareNE(Vector)
compareNE(Void) compare(BitVector) compare(Boolean) compare(Brick)
compare(Character) compare(Complex) compare(CpxVector) compare(Date)
compare(Dictionary) compare(Directory) compare(FltVector) compare(Function)
compare(IntVector) compare(Lambda) compare(List) compare(Matrix)
compare(NumMatrix) compare(NumVector) compare(Number) compare(ObjVector)
compare(ObjectRepository) compare(Pair) compare(ShortVector) compare(String)
compare(Structure) compare(Symbol) compare(Vector) compare(Void)
comparison(BitVector) comparison(Boolean) comparison(Brick) comparison(Character)
comparison(Complex) comparison(Date) comparison(Dictionary) comparison(Directory)
comparison(FltVector) comparison(Function) comparison(IntVector) comparison(List)
comparison(Matrix) comparison(NumMatrix) comparison(NumVector) comparison(Number)
comparison(ObjVector) comparison(ObjectRepository) comparison(Pair) comparison(ShortVector)
comparison(String) comparison(Structure) comparison(Symbol) comparison(Vector)
comparison(Void) compile(Lambda) compile(List) compress(ByteVector)
cons(Pair) count(Dictionary) count(Directory) count(List)
count(Matrix) count(NumMatrix) count(Pair) count(Structure)
count(Vector) debug(Context) debug(Lambda) defchild(Lambda)
define(macro)(Lambda) define(Lambda) defmacro(Lambda) defmethod(BitVector)
defmethod(Boolean) defmethod(Brick) defmethod(Character) defmethod(Date)
defmethod(Dictionary) defmethod(Directory) defmethod(FltVector) defmethod(Function)
defmethod(IntVector) defmethod(List) defmethod(Matrix) defmethod(NumMatrix)
defmethod(NumVector) defmethod(Number) defmethod(ObjectRepository) defmethod(Pair)
defmethod(ShortVector) defmethod(String) defmethod(Structure) defmethod(Symbol)
defmethod(Vector) defmethod(Void) deforphan(Lambda) defriend(Lambda)
defun(Lambda) delete(Dictionary) delete(Directory) delete(FltVector)
delete(IntVector) delete(List) delete(Matrix) delete(NumMatrix)
delete(NumVector) delete(ObjVector) delete(ObjectRepository) delete(Pair)
delete(ShortVector) delete(Structure) delete(Vector) disassemble(Context)
disassemble(Lambda) display(ByteVector) display(FileIO) downcase(String)
downcase(Symbol) encode(ByteVector) exportTab(Lambda) exportTab(ObjectRepository)
fdisplay(ByteVector) fdisplay(Text) fileClose(ByteVector) fileClose(Text)
fileDisplay(ByteVector) fileDisplay(Text) fileErase(ByteVector) fileErase(Text)
fileOpen(ByteVector) fileOpen(Text) fileRead(ByteVector) fileRead(Text)
fileWrite(ByteVector) fileWrite(String) fileWrite(Text) filewriteln(ByteVector)
filewriteln(String) filewriteln(Text) findBlock(BitVector) gc(Context)
getGlobalValue(Context) getGlobalValue(Symbol) getSymbolTable(Context) getSymbolTable(Symbol)
globalBinding(Context) globalBinding(Lambda) icompareEQ(Integer) icompareGE(Integer)
icompareGT(Integer) icompareLE(Integer) icompareLT(Integer) icompareNE(Integer)
importTab(Lambda) importTab(ObjectRepository) insert(Dictionary) insert(Directory)
insert(FltVector) insert(IntVector) insert(Matrix) insert(NumMatrix)
insert(NumVector) insert(ObjVector) insert(ShortVector) insert(Structure)
insert(Vector) inside(BitVector) inside(Dictionary) inside(Directory)
inside(IntVector) inside(List) inside(Matrix) inside(NumMatrix)
inside(NumVector) inside(ShortVector) inside(Structure) inside(Vector)
inspect(Context) inspect(Lambda) inspect(ObjectRepository) integer(Integer)
isAtom(BitVector) isAtom(Brick) isAtom(Dictionary) isAtom(Directory)
isAtom(FltVector) isAtom(IntVector) isAtom(List) isAtom(Matrix)
isAtom(NumMatrix) isAtom(NumVector) isAtom(ObjVector) isAtom(Pair)
isAtom(PcodeVector) isAtom(ShortVector) isAtom(Structure) isAtom(Vector)
isBitVector(BitVector) isBoolean(Boolean) isBound(Dictionary) isBound(Directory)
isBound(Structure) isByteVector(ByteVector) isCharAlphabetic(ByteVector) isCharAlphabetic(String)
isCharAlphabetic(Symbol) isCharAlphanumeric(ByteVector) isCharAlphanumeric(String) isCharAlphanumeric(Symbol)
isCharLowercase(ByteVector) isCharLowercase(String) isCharLowercase(Symbol) isCharName(ByteVector)
isCharName(String) isCharName(Symbol) isCharNumeric(ByteVector) isCharNumeric(String)
isCharNumeric(Symbol) isCharUppercase(ByteVector) isCharUppercase(String) isCharUppercase(Symbol)
isCharWhitespace(ByteVector) isCharWhitespace(String) isCharWhitespace(Symbol) isChar(String)
isCharacter(Character) isComplex(Complex) isDate(Date) isDictionary(Dictionary)
isDirectory(Directory) isEqual(BitVector) isEqual(Boolean) isEqual(Brick)
isEqual(Character) isEqual(Complex) isEqual(Date) isEqual(Dictionary)
isEqual(Directory) isEqual(FltVector) isEqual(Function) isEqual(IntVector)
isEqual(List) isEqual(Matrix) isEqual(NumMatrix) isEqual(NumVector)
isEqual(Number) isEqual(ObjVector) isEqual(Pair) isEqual(ShortVector)
isEqual(String) isEqual(Structure) isEqual(Vector) isEqual(Void)
isError(Error) isEven(Number) isExact(Number) isFloatVector(FltVector)
isIdentical(BitVector) isIdentical(Boolean) isIdentical(Brick) isIdentical(Character)
isIdentical(Complex) isIdentical(Date) isIdentical(Dictionary) isIdentical(Directory)
isIdentical(Error) isIdentical(FltVector) isIdentical(Function) isIdentical(IntVector)
isIdentical(List) isIdentical(Matrix) isIdentical(NumMatrix) isIdentical(NumVector)
isIdentical(Number) isIdentical(ObjVector) isIdentical(ObjectRepository) isIdentical(Pair)
isIdentical(PcodeVector) isIdentical(ShortVector) isIdentical(Structure) isIdentical(Vector)
isIdentical(Void) isImmediate(ObjectRepository) isInexact(Number) isInside(BitVector)
isInside(Dictionary) isInside(Directory) isInside(IntVector) isInside(List)
isInside(Matrix) isInside(NumMatrix) isInside(NumVector) isInside(ObjVector)
isInside(Pair) isInside(ShortVector) isInside(Structure) isInside(Vector)
isIntegerVector(IntVector) isInteger(Integer) isMatrix(Matrix) isMember(BitVector)
isMember(Dictionary) isMember(Directory) isMember(IntVector) isMember(List)
isMember(Matrix) isMember(NumMatrix) isMember(NumVector) isMember(ObjVector)
isMember(Pair) isMember(ShortVector) isMember(Structure) isMember(Vector)
isMoney(Number) isNegative(Number) isNull(Number) isNull(Void)
isNumberMatrix(NumMatrix) isNumberVector(NumVector) isNumber(Number) isObjectVector(ObjVector)
isObject(BitVector) isObject(Brick) isObject(ByteVector) isObject(Dictionary)
isObject(Directory) isObject(FltVector) isObject(IntVector) isObject(List)
isObject(Matrix) isObject(NumMatrix) isObject(NumVector) isObject(ObjVector)
isObject(Pair) isObject(PcodeVector) isObject(ShortVector) isObject(String)
isObject(Structure) isObject(Symbol) isObject(Vector) isOdd(Number)
isPair(List) isPair(Pair) isPcodeVector(PcodeVector) isPositive(Number)
isString(String) isStructure(Structure) isSymbol(Symbol) isText(String)
isTransaction(ObjectRepository) isType(BitVector) isType(Boolean) isType(Brick)
isType(Character) isType(Complex) isType(Date) isType(Dictionary)
isType(Directory) isType(FltVector) isType(Function) isType(IntVector)
isType(Matrix) isType(NumMatrix) isType(NumVector) isType(Number)
isType(ObjVector) isType(ObjectRepository) isType(Pair) isType(ShortVector)
isType(String) isType(Structure) isType(Symbol) isType(Vector)
isType(Void) isVector(Vector) isZero(Number) length(BitVector)
length(Brick) length(Dictionary) length(Directory) length(FltVector)
length(IntVector) length(List) length(Matrix) length(NumMatrix)
length(NumVector) length(ObjVector) length(ObjectRepository) length(Pair)
length(PcodeVector) length(ShortVector) length(String) length(Structure)
length(Symbol) length(Vector) lisp(Lambda) lisp(List)
list(List) loadWorkspace(Context) macroReplace(String) makeQuotedList(List)
makeQuotedSymbol(Symbol) member(BitVector) member(Dictionary) member(Directory)
member(IntVector) member(List) member(Matrix) member(NumMatrix)
member(NumVector) member(ObjVector) member(ShortVector) member(Structure)
member(Vector) methodsOf(BitVector) methodsOf(Boolean) methodsOf(Brick)
methodsOf(Character) methodsOf(Complex) methodsOf(Date) methodsOf(Dictionary)
methodsOf(Directory) methodsOf(FltVector) methodsOf(Function) methodsOf(IntVector)
methodsOf(List) methodsOf(Matrix) methodsOf(NumMatrix) methodsOf(NumVector)
methodsOf(Number) methodsOf(ObjVector) methodsOf(ObjectRepository) methodsOf(Pair)
methodsOf(PcodeVector) methodsOf(ShortVector) methodsOf(String) methodsOf(Structure)
methodsOf(Symbol) methodsOf(Vector) methodsOf(Void) money(Number)
morph(List) ncompareEQ(Number) ncompareGE(Number) ncompareGT(Number)
ncompareLE(Number) ncompareLT(Number) ncompareNE(Number) new(BitVector)
new(Brick) new(ByteVector) new(CpxVector) new(Dictionary)
new(Directory) new(FltVector) new(IntVector) new(Lambda)
new(Matrix) new(NumMatrix) new(NumVector) new(ObjVector)
new(ObjectRepository) new(PcodeVector) new(ShortVector) new(String)
new(Structure) new(Symbol) new(Vector) number(Number)
onError(Error) onError(Lambda) openLog(FileIO) openLog(String)
pair(Pair) parse(String) proplist(Symbol) proprecord(Symbol)
putprop(Symbol) ref(BitVector) ref(Boolean) ref(Brick)
ref(Character) ref(Complex) ref(Date) ref(Dictionary)
ref(Directory) ref(FltVector) ref(Function) ref(IntVector)
ref(Lambda) ref(List) ref(Matrix) ref(NumMatrix)
ref(NumVector) ref(Number) ref(ObjVector) ref(ObjectRepository)
ref(PcodeVector) ref(ShortVector) ref(String) ref(Structure)
ref(Symbol) ref(Vector) ref(Void) remProp(Symbol)
remove(BitVector) remove(Dictionary) remove(Directory) remove(IntVector)
remove(Matrix) remove(NumMatrix) remove(NumVector) remove(ObjVector)
remove(ShortVector) remove(Structure) remove(Vector) rename(ObjectRepository)
reset(Context) saveObject(ByteVector) saveObject(Integer) saveRepository(ObjectRepository)
saveWorkspace(Context) send(BitVector) send(Boolean) send(Brick)
send(Character) send(CpxVector) send(Date) send(Dictionary)
send(Directory) send(FltVector) send(Function) send(IntVector)
send(Lambda) send(List) send(Matrix) send(NumMatrix)
send(NumVector) send(Number) send(ObjectRepository) send(Pair)
send(ShortVector) send(String) send(Structure) send(Symbol)
send(Vector) send(Void) setBlock(BitVector) setCar(List)
setCar(Pair) setCdr(BitVector) setCdr(Brick) setCdr(Dictionary)
setCdr(Directory) setCdr(FltVector) setCdr(IntVector) setCdr(List)
setCdr(Matrix) setCdr(NumMatrix) setCdr(NumVector) setCdr(ObjVector)
setCdr(Pair) setCdr(ShortVector) setCdr(Structure) setCdr(Vector)
setLastCdr(BitVector) setLastCdr(FltVector) setLastCdr(IntVector) setLastCdr(List)
setLastCdr(Matrix) setLastCdr(NumMatrix) setLastCdr(NumVector) setLastCdr(ObjVector)
setLastCdr(Structure) setLastCdr(Vector) set(ObjectRepository) setf(ObjectRepository)
setq(BitVector) setq(Boolean) setq(Brick) setq(Character)
setq(Date) setq(Dictionary) setq(Directory) setq(FltVector)
setq(IntVector) setq(Lambda) setq(List) setq(Matrix)
setq(NumVector) setq(Number) setq(ObjVector) setq(ObjectRepository)
setq(PcodeVector) setq(ShortVector) setq(String) setq(Structure)
setq(Symbol) setq(Vector) setq(Void) sizeof(BitVector)
sizeof(Boolean) sizeof(Brick) sizeof(ByteVector) sizeof(Character)
sizeof(Complex) sizeof(Date) sizeof(Dictionary) sizeof(Directory)
sizeof(FltVector) sizeof(Function) sizeof(IntVector) sizeof(List)
sizeof(Matrix) sizeof(NumMatrix) sizeof(NumVector) sizeof(Number)
sizeof(ObjVector) sizeof(ObjectRepository) sizeof(Pair) sizeof(PcodeVector)
sizeof(ShortVector) sizeof(String) sizeof(Structure) sizeof(Symbol)
sizeof(Vector) sizeof(Void) sort(BitVector) sort(Dictionary)
sort(Directory) sort(FltVector) sort(IntVector) sort(List)
sort(Matrix) sort(NumMatrix) sort(NumVector) sort(ObjVector)
sort(ShortVector) sort(Structure) sort(Vector) stringCiEQ(String)
stringCiGE(String) stringCiGT(String) stringCiLE(String) stringCiLT(String)
stringCiNE(String) string(Complex) string(String) subscribe(Context)
substringCiEQ(String) substringCiGE(String) substringCiGT(String) substringCiLE(String)
substringCiLT(String) substringCiNE(String) substringEQ(String) substringGE(String)
substringGT(String) substringLE(String) substringLT(String) substringNE(String)
svmRegression(Vector) symbol(Symbol) systemCheck(Context) type(BitVector)
type(Boolean) type(Brick) type(ByteVector) type(Character)
type(Complex) type(Date) type(Dictionary) type(Directory)
type(FltVector) type(Function) type(IntVector) type(Lambda)
type(Matrix) type(NumMatrix) type(NumVector) type(Number)
type(ObjVector) type(ObjectRepository) type(Pair) type(PcodeVector)
type(ShortVector) type(String) type(Structure) type(Symbol)
type(Vector) type(Void) uniqueInsert(FltVector) uniqueInsert(IntVector)
uniqueInsert(Matrix) uniqueInsert(NumMatrix) uniqueInsert(NumVector) uniqueInsert(ObjVector)
uniqueInsert(ShortVector) uniqueInsert(Structure) uniqueInsert(Vector) vectorFill(BitVector)
vectorFill(FltVector) vectorFill(IntVector) vectorFill(Matrix) vectorFill(NumMatrix)
vectorFill(NumVector) vectorFill(ObjVector) vectorFill(ShortVector) vectorFill(Vector)
version(Context) writeln(ByteVector) writeln(String) writeln(Text)

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