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Questions - sizeof

Why is sys.getsizeof reporting bigger values for smaller lists?

I don't understand how sizeof behaves differently when both the lists are created like literals. I expect the output of the second sizeof to be equal or less than that of the first sizeof, not greater...
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Tushar Vazirani

python

list

sizeof

Votes: 0

Answers: 1

Latest Answer

Short story: It's about overallocation and avoiding useless overallocation. Your cases have 6 and 7 elements. In both cases, Python first calculates 12 as the number of spots to allocate. The purpose ...
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Kelly Bundy

C# Marshal.SizeOf - function for measure size of a class

I've tried to write a function that clone object, altrougth they do not derive from the ICloneable interface. For this I copy the part of the memory where the object is stored. That works fine for str...
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Finn

c#

class

clone

marshalling

sizeof

Votes: 0

Answers: 1

Latest Answer

No there's no way to do this for a class, and intentionally so. Structs have specific constraints that allow the StructLayout attribute work the way it does. Classes do not have these guarantees. The ...
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John V

How to calculate the actual byte size of an Array in nodejs?

I'm doing a bulk indexing in AWS OpenSearch within my node application and it's failing because the chunk size are too big. Below is the error Request size exceeded 104857600 bytes So I need to calcu...
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ahkam

node.js

buffer

sizeof

aws-elasticsearch

Votes: 0

Answers: 2

Latest Answer

For any type of value: const { serialize } = require('v8') // i.e const variable = true console.log(serialize(variable).byteLength) // 3 3 = 0x03 0x01 0x00 Header byte indicating the type of the v...
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Lawrence Cherone

Question about strcpy using char pointer in C

I'm doing some programming with C, and I have a minor problem using strcpy. char* file="It has something inside" int size= sizeof(file); char* file_save = malloc(sizeof(char)*size); strcpy(f...
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lin ki

c

dynamic-memory-allocation

c-strings

sizeof

strcpy

Votes: 0

Answers: 3

Latest Answer

The variable file has the pointer type char * char* file="It has something inside"; It would be even better to declare the pointer with the qualifier const because you may not change the st...
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Vlad from Moscow

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