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Description

Header-only C++17 library provides nameof macros and functions to simply obtain the name of a variable, type, function, macro, and enum.

Before, you had to use string literals to refer to definitions, which is brittle when renaming code elements because tools do not know to check these string literals.

Programming language: C++
License: MIT License
Tags: Serialization     Nameof     Nameof-operator     Cpp17     С++17    
Latest version: v0.9.3

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README

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Github releases Conan package Vcpkg package [License](LICENSE) Build status Build status Codacy badge Try online

Nameof C++

Header-only C++17 library provides nameof macros and functions to simply obtain the name of a variable, type, function, macro, and enum.

Features

  • C++17
  • Header-only
  • Dependency-free
  • Compile-time
  • Name of variable, member variable
  • Name of type, variable type
  • Name of function, member function
  • Name of enum, enum variable
  • Name of macro
  • Enum to string

Documentation

  • [Reference](doc/reference.md)
  • [Limitations](doc/limitations.md)
  • Integration

[Examples](example/example.cpp)

  • Nameof
  // Name of variable.
  NAMEOF(somevar) -> "somevar"

  // Name of member variable.
  NAMEOF(person.address.zip_code) -> "zip_code"

  // Name of function.
  NAMEOF(foo<int, float>()) -> "foo"

  // Name of member function.
  NAMEOF(somevar.some_method()) -> "some_method"
  NAMEOF(somevar.some_method<int>()) -> "some_method"

  // Name of macro.
  NAMEOF(__LINE__) -> "__LINE__"
  NAMEOF(NAMEOF(structvar)) -> "NAMEOF"
  • Nameof enum
  auto color = Color::RED;
  // Name of enum variable.
  NAMEOF_ENUM(color) -> "RED"
  nameof::nameof_enum(color) -> "RED"

  // Static storage enum variable to string.
  // This version is much lighter on the compile times and is not restricted to the enum_range limitation.
  NAMEOF_CONST_ENUM(Color::GREEN) -> "GREEN"
  nameof::nameof_enum<Color::GREEN>() -> "GREEN"
  • Nameof type
  using T = const int&;
  T var = 42;
  // Name of variable type.
  NAMEOF_TYPE_EXPR(var) -> "int"
  NAMEOF_FULL_TYPE_EXPR(var) -> "const int&"
  nameof::nameof_type<decltype(var)>() -> "int"
  nameof::nameof_full_type<decltype(var)>() -> "const int&"

  // Name of type.
  NAMEOF_TYPE(T) -> "int"
  NAMEOF_FULL_TYPE(T) -> "const int&"
  nameof::nameof_type<T>() -> "int"
  nameof::nameof_full_type<T>() -> "const int&"
  • Compile-time
  constexpr auto somevar_name = NAMEOF(somevar);
  // somevar_name -> "somevar"
  constexpr auto color_name = NAMEOF_ENUM(Color::BLUE); // or nameof::nameof_enum(Color::BLUE)
  // color_name -> "BLUE"
  constexpr auto var_type_name = NAMEOF_TYPE_EXPR(var); // or nameof::nameof_type<decltype(var)>()
  // var_type_name -> "int"
  constexpr auto type_name = NAMEOF_TYPE(T); // or nameof::nameof_type<T>()
  // type_name -> "int"

Remarks

  • Before use, read the [limitations](doc/limitations.md) of functionality.

Integration

You should add required file [nameof.hpp](include/nameof.hpp).

If you are using vcpkg on your project for external dependencies, then you can use the nameof package.

If you are using Conan to manage your dependencies, merely add nameof/x.y.z@neargye/stable to your conan's requires, where x.y.z is the release version you want to use.

Compiler compatibility

  • Clang/LLVM >= 5
  • MSVC++ >= 14.11 / Visual Studio >= 2017
  • Xcode >= 10
  • GCC >= 7 (GCC >= 9 for NAMEOF_ENUM)

Licensed under the [MIT License](LICENSE)


*Note that all licence references and agreements mentioned in the Nameof C++ README section above are relevant to that project's source code only.