NAME¶

std::experimental::reflect::get_source_line - std::experimental::reflect::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 evaluation represented
(C++23) by the stacktrace_entry
(public member function of std::stacktrace_entry)