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std::experi..._source_line(3) C++ Standard Libarystd::experi..._source_line(3)

NAME
       std::experimental::reflect::get_source_line   -	std::experimental::re-
       flect::get_source_line

Synopsis
	  Defined in header <experimental/reflect>
	  template< Object T >			    (reflection	TS)
	  struct get_source_line;

	  Provides the member constant value equal to the presumed line	number
       of the
	  declaration of the entity or typedef-name reflected by T.

Member constants
	  value	   the presumed	line number of the declaration of  the	entity
       or typedef-name
	  [static] reflected by	T
		   (public static member constant)

Member functions
				       converts	      the	object	    to
       std::uint_least32_t, returns
	  operator std::uint_least32_t value
				       (public member function)
	  operator()		       returns value
	  (C++14)		       (public member function)

Member types
	  Type	     Definition
	  value_type std::uint_least32_t
	  type	     std::integral_constant<std::uint_least32_t, value>

Example
	  The following	code shows the source code line	 of  an	 object	 or  a
       class.

       // Run this code

	#include<experimental/reflect>
	#include<iostream>

	using refl = std::experimental::reflect;

	float f;
	struct P{};

	int main()
	{
	    std::cout << refl::get_source_line_v<reflexpr(f)> << '\n';
	    std::cout << refl::get_source_line_v<reflexpr(P)> << '\n';
	}

Output:
	6
	7

See also
	  line	      return the line number represented by this object
		      (public member function of std::source_location)
	  source_line  gets the	line number that lexically relates the evalua-
       tion represented
	  (C++23)     by the stacktrace_entry
		      (public member function of std::stacktrace_entry)

http://cppreference.com		  2024.06.10	 std::experi..._source_line(3)

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