istream.tcc (basic_istream::read, [...]): Avoid redundant setstate(failbit)…

istream.tcc (basic_istream::read, [...]): Avoid redundant setstate(failbit) calls when sentry::operator bool() returns false.

2003-09-22  Petur Runolfsson  <peturr02@ru.is>

	* include/bits/istream.tcc (basic_istream::read,
	basic_istream::readsome, basic_istream::putback,
	basic_istream::unget, operator>>(basic_istream, CharT)):
	Avoid redundant setstate(failbit) calls when sentry::operator bool()
	returns false.

From-SVN: r71662

libstdc++-v3/ChangeLog

+2003-09-22  Petur Runolfsson  <peturr02@ru.is>
+
+	* include/bits/istream.tcc (basic_istream::read,
+	basic_istream::readsome, basic_istream::putback,
+	basic_istream::unget, operator>>(basic_istream, CharT)):
+	Avoid redundant setstate(failbit) calls when sentry::operator bool()
+	returns false.
+
 2003-09-22  Carlo Wood  <carlo@alinoe.com>
 
 	PR libstdc++/12365

libstdc++-v3/include/bits/istream.tcc

@@ -798,8 +798,6 @@ namespace std
 		__throw_exception_again;
 	    }
 	}
-      else
-	this->setstate(ios_base::failbit);
       return *this;
     }
   
@@ -834,8 +832,6 @@ namespace std
 		__throw_exception_again;
 	    }
 	}
-      else
-	this->setstate(ios_base::failbit);
       return _M_gcount;
     }
       
@@ -868,8 +864,6 @@ namespace std
 		__throw_exception_again;
 	    }
 	}
-      else
-	this->setstate(ios_base::failbit);
       return *this;
     }
   
@@ -902,8 +896,6 @@ namespace std
 		__throw_exception_again;
 	    }
 	}
-      else
-	this->setstate(ios_base::failbit);
       return *this;
     }
   
@@ -1014,8 +1006,6 @@ namespace std
 		__throw_exception_again;
 	    }
 	}
-      else
-	__in.setstate(ios_base::failbit);
       return __in;
     }