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Is it better to use std::memcpy() or std::copy() in terms to performance?
...py will have a slight, almost imperceptible performance loss. I just did a test and found that to be untrue: I did notice a performance difference. However, the winner was std::copy.
I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512),...
Has anyone actually implemented a Fibonacci-Heap efficiently?
...e dijkstra_heap_performance.cpp against a modified version of dijkstra_shortest_paths.hpp to compare Fibonacci heaps and binary heaps. (In the line typedef relaxed_heap<Vertex, IndirectCmp, IndexMap> MutableQueue, change relaxed to fibonacci.) I first forgot to compile with optimizations, in...
How to map a composite key with JPA and Hibernate?
...
Let's take a simple example. Let's say two tables named test and customer are there described as:
create table test(
test_id int(11) not null auto_increment,
primary key(test_id));
create table customer(
customer_id int(11) not null auto_increment,
name varchar(50) not n...
Node.js Logging
...n": "%m"
},
"category": "app"
},{
"category": "test-file-appender",
"type": "file",
"filename": "log_file.log",
"maxLogSize": 10240,
"backups": 3,
"layout": {
"type": "pattern",
"pattern": "%d{dd/MM hh:mm} %-...
What is the difference between IEqualityComparer and IEquatable?
...EqualityComparer<T>,
one could ask:
Is there a preferred way of testing two instances of T for equality, or are there several equally valid ways?
If there is only one way of testing two instances of T for equality, or if one of several methods is preferred, then IEquatable<T> wou...
Testing if object is of generic type in C#
I would like to perform a test if an object is of a generic type. I've tried the following without success:
5 Answers
...
Which version of Python do I have installed?
...-2.7.6/Lib/site.pyc
/root/Python-2.7.6/Lib/site.pyo
/root/Python-2.7.6/Lib/test/test_site.py
/usr/lib/python2.6/site-packages/site.py
/usr/lib/python2.6/site-packages/site.pyc
/usr/lib/python2.6/site-packages/site.pyo
/usr/lib64/python2.6/site.py
/usr/lib64/python2.6/site.pyc
/usr/lib64/python2.6/si...
Auto line-wrapping in SVG text
...
I was testing this code in FF, the browser didnt showed me either the textArea element or the foreignObject child. Then after reading the spec, found that requiredFeatures attribute behaves in such a way that, when its list evalut...
Find out if string ends with another string in C++
...
} else {
return false;
}
}
int main () {
std::string test1 = "binary";
std::string test2 = "unary";
std::string test3 = "tertiary";
std::string test4 = "ry";
std::string ending = "nary";
std::cout << hasEnding (test1, ending) << std::endl;
s...
Deciding between HttpClient and WebClient
...--------------+--------------------------------------------+
| Mocking and testing WebClient is difficult | Mocking and testing HttpClient is easy |
+--------------------------------------------+--------------------------------------------+
| Supports FTP | No suppo...