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Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...t of pointers? Consider the following modification of your example:
type MyStructType struct{}
func myFunction1() (*MyStructType, error) {
var chunk *MyStructType = new(MyStructType)
// ...
return chunk, nil
}
func myFunction2() (MyStructType, error) {
var chunk MyStructType
...
SHA1 vs md5 vs SHA256: which to use for a PHP login?
...and am very curious to hear any rebuttle other users might have. Here are my reasons
If you allow users to use weak passwords such as God, love, war, peace then no matter the encryption you will still be allowing the user to type in the password not the hash and these passwords are often used fir...
How do I choose grid and block dimensions for CUDA kernels?
...***/
/* TEST KERNEL FUNCTION */
/************************/
__global__ void MyKernel(int *a, int *b, int *c, int N)
{
int idx = threadIdx.x + blockIdx.x * blockDim.x;
if (idx < N) { c[idx] = a[idx] + b[idx]; }
}
/********/
/* MAIN */
/********/
void main()
{
const int N = 1000...
Apache Spark: map vs mapPartitions?
...tead of once per RDD data
element for example : see below.
val newRd = myRdd.mapPartitions(partition => {
val connection = new DbConnection /*creates a db connection per partition*/
val newPartition = partition.map(record => {
readMatchingFromDB(record, connection)
}).toList // ...
Why does Python print unicode characters when the default encoding is ASCII?
...assumed to be in sys.stdout.encoding and is just sent to the terminal. On my system (Python 2):
>>> import unicodedata as ud
>>> import sys
>>> sys.stdout.encoding
'cp437'
>>> ud.name(u'\xe9') # U+00E9 Unicode codepoint
'LATIN SMALL LETTER E WITH ACUTE'
>>...
Interfaces — What's the point?
... when in Python it all works without. That's what the largest paragraph of my answer tried to provide. I don't think it's necessary to dig in every pattern and practice that uses interfaces here.
– Joey
Jul 26 '11 at 10:48
...
Java 8 Streams: multiple filters vs. complex condition
..., for a large array the difference is not that big.
You can take a look on my GitHub project, where I did performance tests for multiple array iteration options
For small array 10 element throughput ops/s:
For medium 10,000 elements throughput ops/s:
For large array 1,000,000 elements throughp...
ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
...
where exactly is my summary incorrect? And what "summary" to begin with? I was explicitly talking about "put operations from Java land". If you only copy data around between Channels (i.e. never have to deal with the data in Java land) tha...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
..._t.
See also:
Exotic architectures the standards committees care about.
My opinion-based pragmatic view of integer types in C and C++.
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follo...
docker mounting volumes on host
...ontainer.
Example:
You have a Dockerfile that defines a VOLUME /var/lib/mysql.
You build the docker image and tag it some-volume
You run the container
And then,
You have another docker image that you want to use this volume
You run the docker container with the following:
docker run --volumes...