std::experimental::source_location:: line
From cppreference.com
<
cpp
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experimental
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source location
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constexpr
std::
uint_least32_t
line
(
)
const
noexcept
;
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(library fundamentals TS v2) | |
Returns the line number represented by this object.
Parameters
(none)
Return value
The line number represented by this object.
Example
Run this code
#include <experimental/source_location> #include <iostream> #include <string_view> using std::experimental::source_location; inline void cur_line( const std::string_view message = "", const source_location& location = source_location::current()) { std::cout << location.line() // <- the call-site line # << ") " << message; } int main() { cur_line("++" "\n"); cur_line(); std::cout << "Hello," "\n"; cur_line(); std::cout << "C++20!" "\n"; cur_line("--" "\n"); }
Output:
18) ++ 19) Hello, 20) C++20! 21) --
See also
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return the column number represented by this object
(public member function) |
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return the file name represented by this object
(public member function) |
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return the name of the function represented by this object, if any
(public member function) |
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C++ documentation
for
Filename and line information
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