22 Diagnostics library [diagnostics]

22.2 Exception classes [std.exceptions]

22.2.9 Class overflow_­error [overflow.error]

namespace std {
  class overflow_error : public runtime_error {
  public:
    explicit overflow_error(const string& what_arg);
    explicit overflow_error(const char* what_arg);
  };
}

The class overflow_­error defines the type of objects thrown as exceptions to report an arithmetic overflow error.

overflow_error(const string& what_arg);

Effects: Constructs an object of class overflow_­error.

Postconditions: strcmp(what(), what_­arg.c_­str()) == 0.

overflow_error(const char* what_arg);

Effects: Constructs an object of class overflow_­error.

Postconditions: strcmp(what(), what_­arg) == 0.