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How does one create an InputStream from a String? [duplicate]
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How about not using String.getBytes? It allocates a copy of string, so it is not memory effective solution. The reason to use inputstream is usually to avoid keeping a copy of large object in memory
– Vitamon
May 19 '16 at 11:...
Performing Breadth First Search recursively
...tupidly ridiculous with the call stack that you shouldn't be.
On the same token, the nature of any non-tail recursion you try to implement is essentially adding a stack to the algorithm. This makes it no longer breadth first search on a binary tree, and thus the run-time and whatnot for traditiona...
Attempt to set a non-property-list object as an NSUserDefaults
...ta *data = [currentDefaults objectForKey:@"yourKeyName"];
yourObjectType * token = [NSKeyedUnarchiver unarchiveObjectWithData:data];
For Remove
[currentDefaults removeObjectForKey:@"yourKeyName"];
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How expensive is RTTI?
...;typeid()
5) 14,261,000 Ticks (~23 Seconds) - typeid() with extra variable allocations.
So the conclusion would be:
For simple cast cases without optimisation typeid() is more than twice faster than dyncamic_cast.
On a modern machine the difference between the two is about 1 nanosecond (a milliont...
What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
...o make sure that command2 is only run if command1 ran successfully.
The ; token just separates commands, so it will run the second command regardless of whether or not the first one succeeds.
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What optimizations can GHC be expected to perform reliably?
...pose of floatInwards is floating into branches of a case, so that we don't allocate things, save them on the stack, and then discover that they aren't needed in the chosen branch.
As an example, suppose we had this expression:
let x = big in
case v of
True -> x + 1
False -&g...
Approximate cost to access various caches and main memory?
...s PINNED MEMORY for all CUDA Contexts, not just the one, current, when the allocation was performed
| ___HostAllocWriteCombined_MEM / cudaHostFree() +---------------- cudaHostRegisterMapped -- maps memory allocation into the CUD...
How to reset Jenkins security settings from the command line?
...>#" "/usr/share/jenkins/ref/users/admin/config.xml" sed -i -e "s#<apiToken>.*</apiToken>#<apiToken>${API_TOKEN}</apiToken>#" "/usr/share/jenkins/ref/users/admin/config.xml" ```
– Laurent Picquet
May 19 '17 at 7:33
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Typedef function pointer?
...nction)(int) FUNC_1. That way I can see the type and alias in two separate token instead of being meshed into one.
– dchhetri
May 3 '13 at 5:07
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How can you find and replace text in a file using the Windows command-line environment?
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Beware that the replace token ('foo' in this case) is treated as a regular expression. If you have any special characters there ( I had [ ] ), you need to prepend them with a \ (backslash).
– J W
Mar 3 '16 at 1...