https://github.com/mguludag/typename

A small C++ utility for get type names constexpr from compiler
https://github.com/mguludag/typename

constexpr cpp17 cpp20 cpp23 reflection

Last synced: 4 months ago
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A small C++ utility for get type names constexpr from compiler

• Host: GitHub
• URL: https://github.com/mguludag/typename
• Owner: mguludag
• License: mit
• Created: 2024-01-20T17:54:58.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-05-18T09:45:53.000Z (about 1 year ago)
• Last Synced: 2025-01-03T08:19:36.776Z (6 months ago)
• Topics: constexpr, cpp17, cpp20, cpp23, reflection
• Language: C++
• Homepage:
• Size: 9.77 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# TypeName

A small C++17 utility for get type names constexpr from compiler

## [Usage](https://godbolt.org/z/GYa4Ys3jh)

```C++

#include "TypeName.hpp"

#include 

#include 

// create variadic template function 

template 

auto printTypes(Args&&... args) -> void {

    // NOLINTNEXTLINE [readability-identifier-length]

    auto c = 0U;

    std::print("types are: "),

        // NOLINTNEXTLINE [cppcoreguidelines-pro-bounds-array-to-pointer-decay]

        (std::print("{}{}", TypeUtils::Type::name(std::forward(args)),

                    (++c == sizeof...(args) ? "\n" : ", ")),

         ...);  // NOLINT

}

// you can able to specialize TypeUtils::Type::name<> for desired output per type

template <>

auto constexpr TypeUtils::Type::name() noexcept

    -> std::string_view {

    return "std::string_view";

}

auto main() -> int

{

  auto constexpr name = TypeUtils::Type::name(TypeUtils::Type{});

  printTypes(5, 5.5, "aaa", 'a', TypeUtils::Type{}, name, std::nullopt);

  // prints: "types are: int, double, const char*, char, TypeUtils::Type, std::string_view, std::nullopt_t"

}

````