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ZhekaKozlov
ZhekaKozlov
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What does exactly makesmake reading from the process memory a pure operation? Suppose I created an array of 100 integers in the global memory and then took the 42th element of this array. It is not a side effect, right? So why is reading the same array of 100 integers from a file a side-effect?

What exactly makes reading from the process memory a pure operation? Suppose I created an array of 100 integers in the global memory and then took the 42th element of this array. It is not a side effect, right? So why is reading the same array of 100 integers from a file a side-effect?

What does exactly make reading from the process memory a pure operation? Suppose I created an array of 100 integers in the global memory and then took the 42th element of this array. It is not a side effect, right? So why is reading the same array of 100 integers from a file a side-effect?

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ZhekaKozlov
ZhekaKozlov
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Why is reading from memory is not a side-effect but reading from a file is?

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ZhekaKozlov
ZhekaKozlov
  • 311
  • 2
  • 7

Why reading from memory is not a side-effect but reading from a file is?

What exactly makes reading from the process memory a pure operation? Suppose I created an array of 100 integers in the global memory and then took the 42th element of this array. It is not a side effect, right? So why is reading the same array of 100 integers from a file a side-effect?