Recognition::Utility::StringConverter Concept Reference

Concept for callables that convert a value to std::string. More...

#include <utility.hpp>

Concept definition

template<typename ValueT, typename StringConverterT>
concept Recognition::Utility::StringConverter =  std::same_as<
    std::invoke_result_t<StringConverterT, ValueT>,
    std::string
>

Detailed Description

Concept for callables that convert a value to std::string.

A callable satisfies StringConverter if it can be invoked with a value of type ValueT and returns std::string.

Template Parameters

ValueT	The type of value to convert.
StringConverterT	The callable type.

Example

// Lambda satisfying StringConverter<int>
auto converter = [](int x) { return std::to_string(x); };
static_assert(StringConverter<int, decltype(converter)>);
 
// Function pointer
std::string intToString(int x);
static_assert(StringConverter<int, decltype(&intToString)>);

Since

10.0.0