tuples Questions
5
Solved
What is the best/most efficient way to check if all tuple values? Do I need to iterate over all tuple items and check or is there some even better way?
For example:
t1 = (1, 2, 'abc')
t2 = ('', 2...
3
Here's an example that splits a string and parses each item, putting it into a tuple whose size is known at compile time.
use std::str::FromStr;
fn main() {
let some_str = "123,321,312";
let nu...
3
Solved
I have known for a while that the primary difference between lists and tuples in Python is that lists are mutable and tuples are not. Beyond that and the different methods available to them, I know...
Becalmed asked 2/4, 2012 at 0:38
1
Solved
I recently encountered an API with arrays structured with an arbitrary number of repeated tuples. I tried a few alternatives to achieve it but hit problems with types having infinite recursion or j...
Ululate asked 21/2, 2021 at 0:36
6
Solved
Is there a difference between an std::pair and an std::tuple with only two members? (Besides the obvious that std::pair requires two and only two members and tuple may have more or less...)
Quadrisect asked 14/7, 2011 at 0:9
3
Solved
I'm trying to conditionally add types to a tuple template type based on some compile time condition, as follows:
template <typename T>
class Base { ... }
template <int I>
class Derived...
Hardness asked 19/4, 2021 at 1:45
2
Solved
We have Boost.PFR and we have the tuple iterator. If we combine the two, we might have a way of applying std algorithms over structs. Does a solution already exist? What I'm looking for is:
S a, b;...
Eladiaelaeoptene asked 10/4, 2021 at 11:1
2
Solved
I am trying to create a list based on another list, with the same values repeated 3 times consecutively.
At the moment, I am using:
>>> my_list = [ 1, 2 ]
>>> three_times = []
>...
Antiscorbutic asked 17/5, 2016 at 14:56
6
Solved
I have a named tuple class in python
class Town(collections.namedtuple('Town', [
'name',
'population',
'coordinates',
'population',
'capital',
'state_bird'])):
# ...
I'd like to conve...
Nubilous asked 3/10, 2014 at 14:8
3
Solved
Given the following data frame:
import pandas as pd
df=pd.DataFrame({'A':['a','b','c'],
'B':[[[1,2],[3,4],[5,6]],[[1,2],[3,4],[5,6]],[[1,2],[3,4],[5,6]]]})
df
A B
0 a [[1, 2], [3, 4], [5, 6]]
1...
Beau asked 12/7, 2016 at 16:30
4
Does VB support assignment to a tuple? If so what is the Syntax?
Private Function GetPeStream(metadataDiagnostics As DiagnosticBag, peStreamProvider As EmitStreamProvider, metadataOnly As Boolean)...
1
Solved
When should I use a Pair over a two element Tuple and vice versa?
11
Solved
I have some data either in a list of lists or a list of tuples, like this:
data = [[1,2,3], [4,5,6], [7,8,9]]
data = [(1,2,3), (4,5,6), (7,8,9)]
And I want to sort by the 2nd element in the subs...
5
Solved
I have a nested tuple structure like (String,(String,Double)) and I want to transform it to (String,String,Double). I have various kinds of nested tuple, and I don't want to transform each manually...
1
Consider the following code:
interface Wrap<Value> {
pick(): Value
}
class WrapConstant<Value> implements Wrap<Value> {
constructor(public readonly a: Value) { }
pick(): Value...
Concoction asked 7/3, 2021 at 17:20
2
Solved
I'm using TensorFlow r1.7 and python3.6.5. I am also very new to TensorFlow, so I'd like easy to read explanations if possible.
I'm trying to convert my input data into a dataset of tensors with t...
Empiric asked 13/4, 2018 at 20:43
2
From this data structure :
const properties = [
{ name: 'name', type: '' },
{ name: 'age', type: 0 },
{ name: 'sex', type: ['m', 'f'] as const },
{ name: 'username', type: '' }
]
I am trying t...
Errol asked 5/3, 2021 at 23:9
5
Situation: I have multiple Web service API calls that deliver object structures. Currently, I declare explicit types to bind those object structures together. For the sake of simplicity, here's an ...
Psychognosis asked 29/8, 2017 at 6:20
5
Solved
I have a tuple with two numbers in it, I need to get both numbers. The first number is the x-coordinate, while the second is the y-coordinate. My pseudo code is my idea about how to go about it, ho...
2
Solved
I've been hoping to use new C++17 features like fold expressions and std::apply() to simplify some C++11 code I have that uses tools like std::index_sequence and std::initializer_list for some oper...
Aesthetics asked 24/2, 2021 at 18:47
3
Solved
I have defined a tuple and its indices by creating an enum class:
/** parameter { key ; value1 ; value1 ; } */
using Parameter = std::tuple<unsigned, unsigned, unsigned>;
enum class Paramete...
Iiette asked 11/8, 2017 at 10:20
7
Solved
I have a problem. My program is using config file to set options, and one of those options is a tuple. Here's what i mean:
[common]
logfile=log.txt
db_host=localhost
db_user=root
db_pass=password
...
Ahab asked 4/11, 2010 at 13:31
2
Solved
Say for example, I have a simple case class
case class Foo(k:String, v1:String, v2:String)
Can I get spark to recognise this as a tuple for the purposes of something like this, without convertin...
Pforzheim asked 20/1, 2016 at 15:42
3
Solved
I am writing a native function that will return multiple Python objects
PyObject *V = PyList_New(0);
PyObject *E = PyList_New(0);
PyObject *F = PyList_New(0);
return Py_BuildValue("ooo", V, E, F)...
Velma asked 16/8, 2010 at 23:25
5
Solved
I'm porting some C# code to VB6 because legacy applications. I need to store a list of pairs. I don't need to do associative lookups, I just need to be able to store pairs of items.
The snippet I'...
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