Memory allocation: Difference between revisions
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x=vector("numeric",10) #same as x=numeric(10), space allocated to list vector above now freed |
x=vector("numeric",10) #same as x=numeric(10), space allocated to list vector above now freed |
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rm(x) # remove x</lang> |
rm(x) # remove x</lang> |
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=={{header|Racket}}== |
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Racket doesn't allow direct memory allocation, although it supports some things |
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<lang Racket>#lang racket |
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(collect-garbage) ; This function forces a garbage collection |
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(current-memory-use) ;Gives an estimate on the memory use based on the last garbage collection |
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(custodian-require-memory <limit-custodian> |
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<amount> |
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<stop-custodian>) ; Registers a check on required memory for the <limit-custodian> |
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; If amount of bytes can't be reached, <stop-custodian> is shutdown |
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(custodian-limit-memory <custodian> <amount>) ; Register a limit on memory for the <custodian></lang> |
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Custodians manage threads, ports, sockets, etc. |
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A bit of information about them is available [http://docs.racket-lang.org/reference/eval-model.html?q=memory&q=custodian&q=computer&q=pointer#%28part._custodian-model%29 here] |
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=={{header|Retro}}== |
=={{header|Retro}}== |
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