scl-utility

ScL.Utility

Common C++20 utilities not available in the standard library.

ScL.Utility is a header-only module of the ScL Toolkit providing compile-time meta-programming helpers, preprocessor utilities, and extended type traits.

Requirements

C++20 compatible compiler (MSVC 19.30+, GCC 13+, Clang 16+)
CMake 3.20+

Installation

Add as a subdirectory in CMake and link against the interface target:

add_subdirectory(module/utility)
target_link_libraries(your_target PRIVATE scl::utility)

Then include the umbrella header or individual component headers:

#include <scl/utility.h>           // everything
#include <scl/utility/meta.h>      // meta only

Components

Meta — compile-time reflection

Component	Header	Description
type_name	`<scl/utility/meta/type.h>`	Compile-time type name extraction
enum_name	`<scl/utility/meta/enum.h>`	Compile-time enum member name extraction
symbol_name	`<scl/utility/meta/symbol.h>`	Compile-time function/member name extraction

Preprocessor — macro utilities

Component	Header	Description
SCL_FORWARD	`<scl/utility/preprocessor/forward.h>`	Identity macro for token forwarding
SCL_COUNTER	`<scl/utility/preprocessor/counter.h>`	Compile-time counter via ADL

Type traits — extended traits and helpers

Component	Header	Description
detection	`<scl/utility/type_traits/detection.h>`	Detection idiom (is_detected, etc.)
forward_like	`<scl/utility/type_traits/forward_like.h>`	Forward with value category of another type
member_like	`<scl/utility/type_traits/member_like.h>`	Member pointer trait decomposition
overload_cast	`<scl/utility/type_traits/overload_cast.h>`	Overloaded function disambiguation

Quick start

#include <scl/utility/meta/type.h>
#include <scl/utility/meta/enum.h>
#include <iostream>

enum class Color { Red, Green, Blue };

int main() {
    std::cout << scl::type_name<std::vector<int>>() << std::endl;
    std::cout << scl::enum_name<Color::Red>() << std::endl;
}