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How are virtual functions and vtable implemented?
...age of 969, or small furry creatures from Alpha Centauri. Side effects may include demons which fly out of your nose, the abrupt appearence of Yog-Sothoth as a required approver on all subsequent code reviews, or the retroactive addition of IHuman::PlayPiano() to all existing instances]
In most co...
The definitive guide to form-based website authentication [closed]
... rainbow tables and how to defend against them, and against other threads. Includes extensive discussion.
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Referring to the null object in Python
... testing for variables in the following way, be extra aware of what you're including or excluding from the test:
def some_function(value=None):
if not value:
value = init_value()
In the above, did you mean to call init_value() when the value is set specifically to None, or did you mean ...
Haskell Type vs Data Constructor
...mportant here to consider the difference between a concrete type (examples include Int, [Char] and Maybe Bool) which is a type that can be assigned to a value in your program, and a type constructor function which you need to feed a type to be able to be assigned to a value. A value can never be of ...
Tactics for using PHP in a high-load site
... can handle all of the file concatenations, minification, file renaming to include hash, etc for all static content. It'll should only add a little processing overhead to the servers initially until the caches (and CDN(s)) are populated with most of the content. Also, for security, it's generally a ...
Algorithm to find top 10 search terms
...d report all the candidates, knowing that any item that should be there is included, and any extras are just noise that will disappear in the next hour.
Any candidates that really do exceed the threshold of interest get stored as a summary. Keep a month's worth of these summaries, throwing away the...
What is a reasonable code coverage % for unit tests (and why)? [closed]
...a step further by making a list of common situations that should be either included or excluded from testing. That way, we were never driving towards a percent, but rather functional coverage of all parts of the working codebase.
– Skeeterdrums
Feb 19 '18 at 17...
不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...#ifdef GNU_LINUX
#define __USE_GNU
#endif
========
问题解决
#include <netinet/in_systm.h>
[root@RS1 zebra-0.95a]# make install
Making install in lib
make[1]: Entering directory `/mnt/zebra-0.95a/lib'
make[2]: Entering directory `/mnt/zebra-0.95a/lib'
make[2]: Nothing to be done fo...
How to parse freeform street/postal address out of text, and into components
...(lastToken.endsWith(",")) {
// found end of street address (may include building, etc. - don't care right now)
// add token back to end, but remove trailing comma (it did its job)
tokens.push(lastToken.endsWith(",") ? lastToken.substring(0, lastToken.length - 1) : la...
Dynamic type languages versus static type languages
... Advocates of static typing argue that
the advantages of static typing
include earlier detection of
programming mistakes (e.g. preventing
adding an integer to a boolean),
better documentation in the form of
type signatures (e.g. incorporating
number and types of arguments when
resolv...