Ruby 1.9 C API - Exceptions I

rb_raise(exception_object, string_message);
rb_raise will try to call exception_object.new and display string-message as the exception error message.

Some of the built-in exceptions that can be raised are:
rb_eArgError
rb_eEOFError
rb_eException
rb_eFatal
rb_eFloatDomainError
rb_eIndexError
rb_eInterrupt
rb_eIOError
rb_eKeyError
rb_eLoadError
rb_eLocalJumpError
rb_eNameError
rb_eNoMemError
rb_eNoMethodError
rb_eNotImpError
rb_eRangeError
rb_eRegexpError
rb_eRuntimeError
rb_eScriptError
rb_eSecurityError
rb_eSignal
rb_eStandardError
rb_eStopIteration
rb_eSyntaxError
rb_eSysStackError
rb_eSystemCallError
rb_eSystemExit
rb_eThreadError
rb_eTypeError
rb_eZeroDivError