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Do you (really) write exception safe code? [closed]
...even be sure, that it is?
Writing exception-safe code is like writing bug-free code.
You can't be 100% sure your code is exception safe. But then, you strive for it, using well-known patterns, and avoiding well-known anti-patterns.
Do you know and/or actually use alternatives that work?
There are...
How can we match a^n b^n with Java regex?
... we anticipate having a more complicated pattern, let's use x modifier for free-spacing so we can make our regex more readable.
Building on our previous PHP snippet, we now have the following pattern:
$r2 = '/ ^ a+ (?= (b+) ) /x';
# │ └──┘ │
# │ 1 │
# ...
Detect application heap size in Android
... your app currently uses:
long usedMemory=runtime.totalMemory() - runtime.freeMemory();
Getting how much of the heap your app can now use (available memory) :
long availableMemory=maxMemory-usedMemory;
And, to format each of them nicely, you can use:
String formattedMemorySize=Formatter.forma...
File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希 ·...
...《服务协议》 关注公众号，精彩不错过！ #free_v { border:none; position:fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
Ruby convert Object to Hash
... the Hash {name: "book", price: 15.95} in Ruby, not Rails (although feel free to give the Rails answer too)?
17 Answers
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LinkedBlockingQueue vs ConcurrentLinkedQueue
...s algorithm by Maged M. Michael and Michael L. Scott for non-blocking lock-free queues.
"Non-blocking" as a term here for a contended resource (our queue) means that regardless of what the platform's scheduler does, like interrupting a thread, or if the thread in question is simply too slow, other ...
What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]
...l query
Waits for any outstanding I/O
operations that is outstanding
Frees any held buffers on the
server by the connection
Unlocks any buffer resources
that are used by the connection
Releases all allocated memory
owned by the connection
Clears any work or temporary
tables that ...
Spinlock versus Semaphore
...presence of congestion
It is a common misconception that spinlocks or lock-free algorithms are "generally faster", or that they are only useful for "very short tasks" (ideally, no synchronization object should be held for longer than absolutely necessary, ever).
The one important difference is how t...
Failed to allocate memory: 8
...he same issue with this. I have 8GB of RAM on my machine, with 6GB sitting free while the Android emulator tells me that it can't allocate 1GB?
– Strozykowski
Nov 11 '11 at 1:38
5
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WSGI vs uWSGi with Nginx [closed]
... Using flup or gunicorn or uWSGI behind nginx is much better, because that frees up nginx to simply serve content, and lets you choose how many tiny light nginx threads to run, independently of your choice of how many heavyweight Python threads you bring up to serve dynamic content. People seem very...