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Fastest exit strategy for a Panic Button in Crisis/Abuse Websites? [closed]
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community wiki
19 revsNicolasMoise
10
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Why does struct alignment depend on whether a field type is primitive or user-defined?
... but when jited this translates to more optimized assembly code (singe LEA vs multiple MOV). However in the case described here the performance will be actually worse so my take is that this is consistent with the underlying CLR implementation since it's a custom type that can have multiple fields s...
Why is a round-trip conversion via a string not safe for a double?
...e mathematically equal (like one with a trailing zero, or let's say 2.1e-1 vs. 0.21) should always give identical results, and strings that are mathematically ordered should give results consistent with the ordering.
– gnasher729
Jun 19 '14 at 12:56
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C# Object Pooling Pattern implementation
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This is a great answer. After C#6 & VS2015 is RTM I'll likely make this the accepted answer as it is clearly the best of all if it's so tuned its used by Rosyln itself.
– Chris Marisic
Jun 5 '15 at 15:34
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Why shouldn't I use mysql_* functions in PHP?
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community wiki
21 revs, 13 users 52%Quentin
292
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Can someone explain the right way to use SBT?
...mantics for building the rest of the business logic of tasks.
Commands vs Tasks
Commands are a lazy way out of the DAG. Using commands it is easy to mutate the build state and serialise tasks as you wish. The cost is we loose parallelisation and deduplication of tasks provided by DAG, which way...
What does multicore assembly language look like?
...e.g. with:
cld
mov $init_len, %ecx
mov $init, %esi
mov 0x1000, %edi
rep movsb
.code16
init:
xor %ax, %ax
mov %ax, %ds
/* Do stuff. */
hlt
.equ init_len, . - init
Using a linker script is another possibility.
The delay loops are an annoying part to get working: there is no super s...
How does a hash table work?
...ed circumstances: when bucket sizes are of the order of memory page sizes (vs. say int keys at 1-in-1000 sparseness and 4k pages = most pages touched), and when the OS treats all-0 pages efficiently (so all-unused-bucket pages don't need backing memory), when address space is plentiful....
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The case against checked exceptions
...uish good checked exceptions from bad:
Out of client's control or Closed vs Open:
Checked exceptions should only be used where the error case is out of control of both the API and the client programmer.
This has to do with how open or closed the system is. In a constrained UI where the client pr...
Unicode equivalents for \w and \b in Java regular expressions?
...cleared up when Unicode clarified grapheme clusters by discussing extended vs legacy grapheme clusters. The old definition of a grapheme cluster, wherein \X stands for a non-mark followed by any number of marks, is problematic, because you should be able to describe all files as matching /^(\X*\R)*\...