source_location.hpp

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#ifndef PLSSVM_EXCEPTIONS_SOURCE_LOCATION_HPP_
#define PLSSVM_EXCEPTIONS_SOURCE_LOCATION_HPP_
#pragma once
 
#include <cstdint>      // std::uint_least32_t
#include <string_view>  // std::string_view
 
namespace plssvm {
 
class source_location {
  public:
    [[nodiscard]] static constexpr source_location current(
        const char *file_name = __builtin_FILE(),
        const char *function_name = __builtin_FUNCTION(),
        int line = __builtin_LINE(),
        int column = 0) noexcept {
        source_location loc;
 
        loc.file_name_ = file_name;
        loc.function_name_ = function_name;
        loc.line_ = line;
        loc.column_ = column;
 
        return loc;
    }
 
    [[nodiscard]] constexpr std::string_view function_name() const noexcept { return function_name_; }
    [[nodiscard]] constexpr std::string_view file_name() const noexcept { return file_name_; }
    [[nodiscard]] constexpr std::uint_least32_t line() const noexcept { return line_; }
    [[nodiscard]] constexpr std::uint_least32_t column() const noexcept { return column_; }
 
  private:
    std::uint_least32_t line_{ 0 };
    std::uint_least32_t column_{ 0 };
    const char *file_name_{ "unknown" };
    const char *function_name_{ "unknown" };
};
 
}  // namespace plssvm
 
#endif  // PLSSVM_EXCEPTIONS_SOURCE_LOCATION_HPP_