source_location Struct Reference

A class representing information about the source code, such as file names, line numbers, and function names. More...

#include <source_location.hpp>

Public Member Functions
constexpr	source_location () noexcept=default
constexpr auto	column () const noexcept -> etl::uint_least32_t
constexpr auto	file_name () const noexcept -> char const *
constexpr auto	function_name () const noexcept -> char const *
constexpr auto	line () const noexcept -> etl::uint_least32_t

Static Public Member Functions
static consteval auto	current (uint_least32_t const line=TETL_BUILTIN_LINE(), uint_least32_t const column=TETL_BUILTIN_COLUMN(), char const *const file=TETL_BUILTIN_FILE(), char const *const function=TETL_BUILTIN_FUNCTION()) noexcept -> source_location

Detailed Description

A class representing information about the source code, such as file names, line numbers, and function names.

// SPDX-License-Identifier: BSL-1.0
 
#include <etl/source_location.hpp>
#include <etl/string_view.hpp>
 
#include <stdio.h>
 
#if defined(__cpp_consteval)
 
static auto log(etl::string_view const message, etl::source_location const location = etl::source_location::current())
    -> void
{
    ::printf(                                     //
        "file: %s(%u:%u) `%s`: %s\n",             //
        location.file_name(),                     //
        static_cast<unsigned>(location.line()),   //
        static_cast<unsigned>(location.column()), //
        location.function_name(),                 //
        message.data()                            //
    );
}
 
template <typename T>
static auto fun(T x) -> void
{
    log(x);
}
 
auto main(int /*argc*/, char const** /*argv*/) -> int
{
    log("Hello world!");
    fun("Hello C++20!");
    return 0;
}
 
#else
auto main() -> int { return 0; }
#endif

Examples

source_location.cpp.

Constructor & Destructor Documentation

source_location()

source_location ( )

constexprdefaultnoexcept

Member Function Documentation

column()

auto column ( ) const -> etl::uint_least32_t

inlinenodiscardconstexprnoexcept

current()

consteval auto current ( uint_least32_t const line = TETL_BUILTIN_LINE(), uint_least32_t const column = TETL_BUILTIN_COLUMN(), char const *const file = TETL_BUILTIN_FILE(), char const *const function = TETL_BUILTIN_FUNCTION() ) -> source_location

inlinestaticnodiscardconstevalnoexcept

Examples

source_location.cpp.

file_name()

auto file_name ( ) const -> char const*

inlinenodiscardconstexprnoexcept

function_name()

auto function_name ( ) const -> char const*

inlinenodiscardconstexprnoexcept

line()

auto line ( ) const -> etl::uint_least32_t

inlinenodiscardconstexprnoexcept

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The documentation for this struct was generated from the following file:

• include/etl/_source_location/source_location.hpp