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What is exactly the base pointer and stack pointer? To what do they point?
...s stack walking in a debugger and viewing other frames local variables to work.
Most function prologs look something like:
push ebp ; Preserve current frame pointer
mov ebp, esp ; Create new frame pointer pointing to current stack top
sub esp, 20 ; allocate 20 bytes worth of locals on st...
Inheritance vs. Aggregation [closed]
...ols of thought on how to best extend, enhance, and reuse code in an object-oriented system:
12 Answers
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Margin-Top push outer div down
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put overflow:auto in the parent div
see more in this link
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Reference — What does this symbol mean in PHP?
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Incrementing / Decrementing Operators
++ increment operator
-- decrement operator
Example Name Effect
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++$a Pre-increment Increments $a by one, then returns $a.
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When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
Looking at a Get-WebFile script over on PoshCode, http://poshcode.org/3226 , I noticed this strange-to-me contraption:
6 A...
What's wrong with using $_REQUEST[]?
...ST in a combined way. In fact that's what you almost always want to do:
for a plain idempotent request usually submitted via GET, there's the possibility the amount of data you want won't fit in a URL so it has be mutated to a POST request instead as a practical matter.
for a request that has a re...
What's the difference between echo, print, and print_r in PHP?
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print and echo are more or less the same; they are both language constructs that display strings. The differences are subtle: print has a return value of 1 so it can be used in expressions whereas echo has a void return type; echo can take multi...
Python's “in” set operator
I'm a little confused about the python in operator for sets.
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Primary key or Unique index?
At work we have a big database with unique indexes instead of primary keys and all works fine.
15 Answers
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Token Authentication for RESTful API: should the token be periodically changed?
I'm building a RESTful API with Django and django-rest-framework .
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