streambuf.tcc (__copy_streambufs): Adjust the type of __avail to ptrdiff_t to…

streambuf.tcc (__copy_streambufs): Adjust the type of __avail to ptrdiff_t to avoid signed-unsigned warning.

2003-05-01  Paolo Carlini  <pcarlini@unitus.it>

	* include/bits/streambuf.tcc (__copy_streambufs): Adjust the
	type of __avail to ptrdiff_t to avoid signed-unsigned warning.

From-SVN: r66356

libstdc++-v3/ChangeLog

+2003-05-01  Paolo Carlini  <pcarlini@unitus.it>
+
+	* include/bits/streambuf.tcc (__copy_streambufs): Adjust the
+	type of __avail to ptrdiff_t to avoid signed-unsigned warning.
+
 2003-05-01  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* testsuite/abi_check.cc (check_version): Update known versions.

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

@@ -192,8 +192,8 @@ namespace std
 	  for (;;)
   	    {
 	      streamsize __xtrct;
-	      const size_t __avail = __sbin->_M_in_end
-		                     - __sbin->_M_in_cur;
+	      const ptrdiff_t __avail = __sbin->_M_in_end
+		                        - __sbin->_M_in_cur;
  	      if (__avail)
 		{
 		  __xtrct = __sbout->sputn(__sbin->_M_in_cur, __avail);