std::source_location::column
From cppreference.com
constexpr std::uint_least32_t column() const noexcept;
|
(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>
inline void 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
| return the line number represented by this object (public member function) | |
| return the file name represented by this object (public member function) | |
| return the name of the function represented by this object, if any (public member function) | |
| Filename and line information | |