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How to generate a random string of a fixed length in Go?
...io (disclosure: I'm the author).
But Benchmark code still shows we're not winning. Why is it so?
The answer to the last question is because rand.Read() uses a loop and keeps calling Source.Int63() until it fills the passed slice. Exactly what the RandStringBytesMaskImprSrc() solution does, without...
Is MATLAB OOP slow or am I doing something wrong?
...d methods. Here are some typical results.
>> call_nops
Computer: PCWIN Release: 2009b
Calling each function/method 100000 times
nop() function: 0.02261 sec 0.23 usec per call
nop1-5() functions: 0.02182 sec 0.22 usec per call
nop() subfunction: ...
Do you (really) write exception safe code? [closed]
...vert back to C and avoid C++ libraries, as well as external surprises like Windows SEH).
Writing exception safe code
To write exception safe code, you must know first what level of exception safety each instruction you write is.
For example, a new can throw an exception, but assigning a built-in (e....
Perforce for Git users? [closed]
...o be updated. With large amounts of data this can be a sizable performance win. This is also very popular in industries that have very strict auditing rules; Perforce admins can easily track and log which developers have synced which files.
For more information on the full power of Perforce workspa...
Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
...ite important.
Workflows:
Larry Osterman (a Microsoft dev working on the Windows team) has a great blog post about the workflow they employ at the Windows team. Most notably they have:
A clean, high quality code only trunk (master repo)
All development happens on feature branches
Feature teams h...
What is the best Distributed Brute Force countermeasure?
...that I am implementing an auth+auth system for CodeIgniter, and so far I'm winning (so to speak). But I've run into a pretty non-trivial challenge (one that most auth libraries miss entirely, but I insist on handling it properly): how to deal intelligently with large-scale, distributed, variable-us...
onchange event on input type=range is not triggering in firefox while dragging
...r 2 past either end of the slider
final mouse-up (or touch-end)
The following table shows how at least three different desktop browsers differ in their behaviour with respect to which of the above scenarios they respond to:
Solution:
The onRangeChange function provides a consistent and predict...
Regex Pattern to Match, Excluding when… / Except between
...I'm not always a fan of visualizations, but this one does a good job of showing how simple the method is. Each "line" corresponds to a potential match, but only the bottom line is captured into Group 1.
Debuggex Demo
Perl/PCRE Variation
In contrast to the general solution above, there exists a...
What is a “cache-friendly” code?
...ache lines to understand how this works: How do cache lines work?
The following particular aspects are of high importance to optimize caching:
Temporal locality: when a given memory location was accessed, it is likely that the same location is accessed again in the near future. Ideally, this inform...
What should main() return in C and C++?
...ain CAN be entered/left multiple times, but that program probably wouldn't win any design awards ;)
– korona
Oct 15 '08 at 12:38
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