range-v3
cereal
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range-v3 | cereal | |
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19 | 13 | |
3,992 | 3,968 | |
- | 1.1% | |
4.4 | 1.3 | |
18 days ago | 28 days ago | |
C++ | C++ | |
GNU General Public License v3.0 or later | BSD 3-clause "New" or "Revised" License |
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range-v3
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Why are strings and IO so complicated?
std::ranges is in c++20, but you can pull in the library it was based on if you use 17 (https://github.com/ericniebler/range-v3)
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What are some of the ways to make a super nasty nested loop become clean?
In C++23, there will be std::views::cartesian_product. It is already available in the range-v3 library, the one that the standard is based on.
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Function composition in modern C++
/** * @brief Forwards value equivalent to the std::forward. * * Using cast instead of std::forward to avoid template instantiation. Used by * Eric Niebler in range library. * * @see https://github.com/ericniebler/range-v3 */
- PocketPy: A Lightweight(~5000 LOC) Python Implementation in C++17
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what annoys you most while using c++?
It contains very little functionality compared to the Eric Niebler’s reference implementation for my liking. Especially views. This will undoubtedly change in the future. But the point is moot, because they are not really supported the is no other option for now other than https://github.com/ericniebler/range-v3.
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C++20 Ranges Algorithms – 7 Non-Modifying Operations
range-v3 is a great library allowing you to bridge the gap: https://github.com/ericniebler/range-v3
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CXXIter: A chainable c++20 LINQ-like iterator library
[range-v3](https://github.com/ericniebler/range-v3) which std::ranges was based on has the `to>()` which as far as I know is expected to get into c++23 :)
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CPPItertools: Implementation Of Python's Itertools For C++
And here is getlines view in range-v3: https://github.com/ericniebler/range-v3/blob/master/include/range/v3/view/getlines.hpp
- Retiring boost from my codebase
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What's up with C++ ranges?
// Must call the below range pipeline to produce a string on an lvalue. Since // we end the pipeline with to_string everything is evaluated here, so no // lifetime issue. auto rows = this -> rows_iter(); namespace rv = ranges::views; // See dynamic width https://fmt.dev/7.1.3/syntax.html#format-examples return rows | rv::transform([elem_delim, width](const auto& row) { // For every row return rv::all(row) // For each row | rv::transform([width](const auto& elem) { // Format each element with padding return fmt::format("{:>{}}", elem, width); }) // Can't use views::join because views::transform returns a // temporary. // Can't use actions::join as it doesn't support a delimiter // https://github.com/ericniebler/range-v3/issues/1406 // views::intersperse and actions::join works // // Add delimiters, combine into one string for the row | rv::intersperse(std::string{elem_delim}) | ranges::actions::join; }) | rv::cache1 | rv::join(row_delim) | ranges::to();
cereal
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Ser20, a C++20 fork of cereal
Where? Do you happen to have a pointer? Github has version 1.3.2 from February.
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Added reflection to C++ just to make my game work.
I'd stick with cereal for serialization
- Cereal Pack - a C++ schema serialization library
- Is there any good binary serializer & deserializer for C / C++?
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Pataro II: Pataro Harder
Today I'm back to working on Pataro, the roguelike built on libtcod that made up much of my Hacktoberfest efforts. I had been assigned to an issue requesting the addition of serialization and deserialization, but unfortunately ran out of time and wasn't able to finish the former or start the latter. I ran into issues with Cereal, and had a hard time figuring out the structure of the program and how to go about implementing serialization for all the relevant components. At the end of that attempt I mentioned that if I were to try again I'd start by testing out Cereal separately and getting a handle on that before trying to implement it in Pataro - so that's what I'm doing today.
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Hacktoberfest 5
I am once again working on Pataro today, and I've succeeded in clearing up some issues and creating new ones. I've been stuck on an issue where Visual Studio was raising errors in the portion of the code where I call the cereal archive on some types, but was able to clear up that issue by moving the save function definitions out of their respective headers and into the corresponding .cpp files. Examining this repo and its use of cereal again, I was able to get a bit clearer of an idea of how it's implemented, and I included just about every relevant cereal header I could find to try and avoid any issues like the previous one popping up again (with the intention of later removing whichever I can to avoid redundant inclusions).
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Hacktoberfest 4
On the Pataro front, I've started looking at other examples of people using cereal for their games. It seems to be a popular choice for roguelike games like this, so hopefully I can figure out both the syntax problems I'm facing, as well as logical ones like how the program should be structured to have all the necessary data properly serialized and deserialized.
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Hacktoberfest 3
Progress on one front but roadblocks on another. After my post yesterday outlining my plans to add serialization to Pataro I ran into some issues with calling the archive class in cereal wherein the call wouldn't go through due to an incorrect number of arguments. This happened with both vector and size_t data members, and I'm still investigating why.
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Binary serialization library for at least C++17?
This is the simplest serialization library I saw. You only need to add one method to your class and you can stream it to desired archive. It supports binary as well as json, XML and others. https://github.com/USCiLab/cereal
What are some alternatives?
Protobuf - Protocol Buffers - Google's data interchange format
Boost.Serialization - Boost.org serialization module
FlatBuffers - FlatBuffers: Memory Efficient Serialization Library
MessagePack - MessagePack implementation for C and C++ / msgpack.org[C/C++]
Magic Enum C++ - Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
Bitsery - Your binary serialization library
json - JSON for Modern C++
cista - Cista is a simple, high-performance, zero-copy C++ serialization & reflection library.
Cap'n Proto - Cap'n Proto serialization/RPC system - core tools and C++ library
protobuf-c - Protocol Buffers implementation in C
smf - Fastest RPC in the west
SBE - Simple Binary Encoding (SBE) - High Performance Message Codec