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How do I declare a 2d array in C++ using new?
...nah, it's not clever at all: it's obvious.
class Matrix
{
...
size_t index( int x, int y ) const { return x + m_width * y; }
};
Given this index() function (which I'm imagining is a member of a class because it needs to know the m_width of your matrix), you can access cells within your ma...
When to use static classes in C# [duplicate]
...h. Become like water my friend.” - Bruce Lee
– Chef_Code
Sep 19 '16 at 20:21
4
@Chef_Code I'm s...
Convert a binary NodeJS Buffer to JavaScript ArrayBuffer
... = new Uint32Array(b.buffer, b.byteOffset, b.byteLength / Uint32Array.BYTES_PER_ELEMENT);
No dependencies, moderate speed, any version of Node.js
Use Martin Thomson's answer, which runs in O(n) time. (See also my replies to comments on his answer about non-optimizations. Using a DataView is slo...
How to get current path with query string using Capybara
The page url is something like /people?search=name
while I used current_path method of capybara it returned /people only.
...
Split (explode) pandas dataframe string entry to separate rows
...row['var2'], row['var1'].split(','))
for _, row in a.iterrows()]).reset_index()
Out[55]:
index 0
0 a 1
1 b 1
2 c 1
3 d 2
4 e 2
5 f 2
Then you just have to rename the columns
...
Should operator
...lic:
explicit Paragraph(std::string const& init)
:m_para(init)
{}
std::string const& to_str() const
{
return m_para;
}
bool operator==(Paragraph const& rhs) const
{
return m_para == rhs.m_para;...
Read a text file using Node.js?
...var path = require('path');
var readStream = fs.createReadStream(path.join(__dirname, '../rooms') + '/rooms.txt', 'utf8');
let data = ''
readStream.on('data', function(chunk) {
data += chunk;
}).on('end', function() {
console.log(data);
});
...
byte[] to hex string [duplicate]
...bove 2 but requires an array of 256 strings to always exist
With: LONG_STRING_LENGTH = 1000 * 1024;
BitConvertRep calculation Time Elapsed 27,202 ms (fastest built in/simple)
StringBuilder calculation Time Elapsed 75,723 ms (StringBuilder no reallocate)
LinqConcat calculation Time E...
Python naming conventions for modules
...and so I'd always have to name my instances something unnatural like client_instance. What do you think of this problem?
– Ray
Jun 1 '16 at 10:59
3
...
Returning a C string from a function
... you move over to C++ you'll use similar strategies:
class Foo
{
char _someData[12];
public:
const char* someFunction() const
{ // The final 'const' is to let the compiler know that nothing is changed in the class when this function is called.
return _someData;
}
}
... but...