Questions tagged [lambda]
Use this tag if you would like to discuss the appropriateness of a lambda (anonymous) function in your code.
221
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A recursive_replace_copy_if Template Function with Unwrap Level Implementation in C++
This is a follow-up question for A recursive_replace_copy_if Template Function Implementation in C++. I am trying to implement recursive_replace_copy_if template ...
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3
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1
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In Java, replace for loop with condition with lambdas [closed]
I want to replace a for loop with a break/return condition inside with a lambda.
I think I have a good replacement, but I want ...
1
vote
1
answer
84
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Find Method Implementation for Multidimensional Array in C#
I found that Array.Find(T[], Predicate) Method is only support one dimensional array. I am trying to generalize it to multi-dimensional array in this post.
The experimental implementation
The ...
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3
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1
answer
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Portable lambda emulation in C
For fun I decided to try to emulate lambda functions in plain old C. It turns out it can be easily done with a bit of macro abuse.
CLambda struct stores function ...
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2
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Find all line numbers of prefix duplicates with streams
All line indices of lines from a text that begin with the same line prefix should be found. The prefixes and the corresponding line numbers should be returned. Streams and lambdas should be used as ...
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2
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Add offset to all filenames
From all the files in a directory, the method shiftFilenamesOffset is to increment the numeric part (int) of the alphanumeric filename by offset each time, and ...
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0
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Lazy evaluation vs strict one applied to fib
I have this OCaml problem:
Recall the polymorphic type lazy seen in class, the function delay which transforms a ...
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0
answers
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Print columns of text without hard coding the width (attempt 5)
If you'd like to print this:
...
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3
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Print columns of text without hard coding the width (attempt 4)
If you'd like to print this:
One Two Three Four
1 2 3 4
using this:
...
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4
votes
1
answer
266
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Print columns of text without hard coding the width (attempt 2)
If you'd like to print this:
One Two Three Four
1 2 3 4
using this:
...
- 828
3
votes
2
answers
524
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2D Matrix in C++
I wanted to play with a two-dimensional generic data container in C++ and explore different methods of traversals: using closures and iterators. I'd like a review of it.
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2
votes
1
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Finger Exercise: Update book cipher by creating new book
I'm working my way through the finger exercises in John Guttag's book Introduction to Python Programming, third edition. The following finger exercise on page 143 describes encryption/decryption with ...
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Compute the goals scored by football teams in their matches in a season, from json data
Please look at the Java Stream methods in the for each loop.
This method totals the score for when the your desired team is playing during the football season - input param teamKey - it is either ...
3
votes
4
answers
164
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Print sums of pairs from 1 to 10
This takes the sum of pairs of numbers from 1 to 10 and outputs the sum, the original numbers, and some connecting text. Output:
intArray.length 10
{Sum of + 1 and 2 =3, Sum of + 3 and 4 =7, Sum of +...
1
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1
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Meta Collatz Sequence
Context
Chapter 6 of Learn You A Haskell contains a function called chain, which outputs the Collatz sequence of a given input.
(In short, it takes a natural number....
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