--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dep/toml11/toml/exception.hpp	Wed Jun 12 05:25:41 2024 -0400
@@ -0,0 +1,83 @@
+//     Copyright Toru Niina 2017.
+// Distributed under the MIT License.
+#ifndef TOML11_EXCEPTION_HPP
+#define TOML11_EXCEPTION_HPP
+
+#include <array>
+#include <string>
+#include <stdexcept>
+
+#include <cstring>
+
+#include "source_location.hpp"
+
+namespace toml
+{
+
+struct file_io_error : public std::runtime_error
+{
+  public:
+    file_io_error(int errnum, const std::string& msg, const std::string& fname)
+        : std::runtime_error(msg + " \"" + fname + "\": errno = " + std::to_string(errnum)),
+          errno_(errnum)
+    {}
+
+    int get_errno() const noexcept {return errno_;}
+
+  private:
+    int errno_;
+};
+
+struct exception : public std::exception
+{
+  public:
+    explicit exception(const source_location& loc): loc_(loc) {}
+    virtual ~exception() noexcept override = default;
+    virtual const char* what() const noexcept override {return "";}
+    virtual source_location const& location() const noexcept {return loc_;}
+
+  protected:
+    source_location loc_;
+};
+
+struct syntax_error : public toml::exception
+{
+  public:
+    explicit syntax_error(const std::string& what_arg, const source_location& loc)
+        : exception(loc), what_(what_arg)
+    {}
+    virtual ~syntax_error() noexcept override = default;
+    virtual const char* what() const noexcept override {return what_.c_str();}
+
+  protected:
+    std::string what_;
+};
+
+struct type_error : public toml::exception
+{
+  public:
+    explicit type_error(const std::string& what_arg, const source_location& loc)
+        : exception(loc), what_(what_arg)
+    {}
+    virtual ~type_error() noexcept override = default;
+    virtual const char* what() const noexcept override {return what_.c_str();}
+
+  protected:
+    std::string what_;
+};
+
+struct internal_error : public toml::exception
+{
+  public:
+    explicit internal_error(const std::string& what_arg, const source_location& loc)
+        : exception(loc), what_(what_arg)
+    {}
+    virtual ~internal_error() noexcept override = default;
+    virtual const char* what() const noexcept override {return what_.c_str();}
+
+  protected:
+    std::string what_;
+};
+
+} // toml
+#endif // TOML_EXCEPTION