标准库标头 <source_location> (C++20) - cppreference.com

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概要

namespace std {
  struct source_location;
}

类 std::source_location

namespace std {
  struct source_location {
    // source_location  构造
    static consteval source_location current() noexcept;
    constexpr source_location() noexcept;

    // source_location 域访问
    constexpr uint_least32_t line() const noexcept;
    constexpr uint_least32_t column() const noexcept;
    constexpr const char* file_name() const noexcept;
    constexpr const char* function_name() const noexcept;

  private:
    uint_least32_t line_;               // 仅为阐释
    uint_least32_t column_;             // 仅为阐释
    const char* file_name_;             // 仅为阐释
    const char* function_name_;         // 仅为阐释
  };
}