std::source_location::column

 

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std::source_location

Member functions

Creation

source_location::source_location

source_location::current

Field access

source_location::line

source_location::column

source_location::file_name

source_location::function_name

 

constexprstd::uint_least32_t column()constnoexcept;		(since C++20)

Returns an implementation-defined value representing some offset from the start of the line represented by this object (i.e., the column number). Column numbers are presumed to be 1-indexed.

Parameters

(none)

Return value

An implementation-defined value representing some offset from the start of the line represented by this object (i.e., the column number).

An implementation is encouraged to use 0 when the column number is unknown.

Example

Run this code

#include <iostream>#include <source_location>   template<typename T =std::source_location>inlinevoid pos(const T& location = T::current()){std::cout<<"("<< location.line()<<':'<< location.column()<<") ";}   int main(){// ↓: column #9 pos();std::cout<<"Proxima\n";// row #18 pos();std::cout<<"Centauri\n";// row #19// ↑: column #11}

Possible output:

(18:9) Proxima (19:11) Centauri

See also

line	return the line number represented by this object (public member function)
file_name	return the file name represented by this object (public member function)
function_name	return the name of the function represented by this object, if any (public member function)
Filename and line information