All Questions
Tagged with c++17template-meta-programming
58 questions
4votes
2answers
447views
Compile time string manipulation in C++
I recently had to work on some conversion of literal strings and wondered if that could be done at compile time using template meta programming. I couldn't find many examples online, so I started ...
- 135
7votes
2answers
215views
Function composition in the context of data processing pipelines
Prior Notification This follows a previous review of mine that addressed the core helper function named make_skippable. The composition implementation presented ...
- 115
3votes
2answers
140views
Extending callable signature with std::optional in context of function composition (make_skippable)
(Please note: the post about the compose implementation announced below is now available.) This is about decorating callables by making their argument and return value to be a ...
- 115
4votes
0answers
54views
Variadic pack class providing operations over types without constructing objects of those types
Sometimes I find I want to call a function passing each of a set of types as a template parameter, but without needing to construct an object of those types. I also may want to do this in multiple ...
- 253
4votes
1answer
2kviews
Template to unpack arguments to a std::function
I am writing some C++ code to interact with an external scripting language. I want to be able to register arbitrary C++ callable code as functions to be called from the script. The scripting library ...
- 161
2votes
1answer
204views
C++17 view over the Ith elements of tuples in containers of tuples
For mainly didactic reasons, I have designed my ElementsView<I, T> class template, which provides a view over the I th ...
- 123
3votes
1answer
2kviews
visit for std::any
While solving an online excersise I have written some basic implementation for a visit function that works with std::any. The ...
1vote
2answers
907views
Automatically registering a class using header-only templated classes
I'm trying to reduce the boilerplate of a lot of header-only classes I'm using. Each of these classes must go through a registration step. I want this step to be defined in the same file as the class ...
- 621
1vote
1answer
1kviews
A multi key/value type "folded" map class template
I have recently come across a use case where I need to lump many maps into a single container. These maps can have different combinations of key/value types, but they all differ from one another. For ...
4votes
3answers
4kviews
De-/Serialization of structs representing TCP messages
I wrote two template functions to serialize and deserialize structs representing messages to be sent and received via a TCP socket: ...
- 6,351
7votes
1answer
508views
Generic test case templates
I often find that when I am writing, refactoring, or reviewing code that I want to do some simple testing. There are many existing test frameworks such as gtest and cppunit but my desire was to ...
- 66.8k
4votes
1answer
397views
Template Metaprogramming and Modular Arithmetic
Story I'm trying to become more familiar with template metaprogramming and practice more of it. I need to use modular arithmetic to solve certain problems and so I decided to write a general purpose ...
- 224
4votes
1answer
722views
Template Metaprogramming - Multidimensional Vector Declaration
[EDIT] The question has been edited. Please make sure to read the summary at the end of the post. If you'd like me to make a new post with a cleaner explanation and better examples, tell me to do so ...
- 224
3votes
0answers
66views
Getting around gsl/span's restriction on temporaries
The goal of this code is to allow temporary RHS variables to be used in a span, specifically as an argument to a function, to be deleted later after the function completes, allowing the passing of ...
- 696
4votes
0answers
1kviews
A wrapper for (perfect forwarding + initialization)
Problem Perfect forwarding is known to be imperfect when it comes to list-initialization; I'll use std::construct_at as an example: ...
- 9,625
