From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11316 invoked by alias); 1 Feb 2003 12:16:01 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 11286 invoked by uid 71); 1 Feb 2003 12:16:01 -0000 Resent-Date: 1 Feb 2003 12:16:00 -0000 Resent-Message-ID: <20030201121600.11284.qmail@sources.redhat.com> Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer) Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org Resent-Reply-To: gcc-gnats@gcc.gnu.org, peturr02@ru.is Received: (qmail 11248 invoked by uid 48); 1 Feb 2003 12:15:53 -0000 Message-Id: <20030201121553.11247.qmail@sources.redhat.com> Date: Sat, 01 Feb 2003 12:16:00 -0000 From: peturr02@ru.is Reply-To: peturr02@ru.is To: gcc-gnats@gcc.gnu.org X-Send-Pr-Version: gnatsweb-2.9.3 (1.1.1.1.2.31) Subject: libstdc++/9533: Regression: Can't read from tty with ifstream X-SW-Source: 2003-02/txt/msg00002.txt.bz2 List-Id: >Number: 9533 >Category: libstdc++ >Synopsis: Regression: Can't read from tty with ifstream >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Sat Feb 01 12:16:00 UTC 2003 >Closed-Date: >Last-Modified: >Originator: peturr02@ru.is >Release: gcc version 3.3 20030106 (prerelease) >Organization: >Environment: Red Hat Linux 8.0 >Description: If /dev/tty is opened with an ifstream, nothing can be read. The attached program exits immediately when compiled with gcc-20030106, but outputs the prompt and then waits for input when compiled with gcc-3.2.1. [petur@interim ttybug]$ g++321 -v Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/specs Configured with: ../gcc-3.2.1/configure --program-suffix=321 --enable-threads=posix --enable-version-specific-runtime-libs --enable-languages=c,c++ Thread model: posix gcc version 3.2.1 [petur@interim ttybug]$ g++0106 -v Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/specs Configured with: ../gcc-20030106/configure --program-suffix=0106 --enable-threads=posix --enable-version-specific-runtime-libs --enable-languages=c,c++ --enable-clocale=gnu Thread model: posix gcc version 3.3 20030106 (prerelease) [petur@interim ttybug]$ rm ttybug && make CXX=g++321 g++321 -static ttybug.cc -o ttybug [petur@interim ttybug]$ ./ttybug < /dev/zero > /dev/null Enter a number: 4 You entered: 4 [petur@interim ttybug]$ rm ttybug && make CXX=g++0106 g++0106 -static ttybug.cc -o ttybug [petur@interim ttybug]$ ./ttybug < /dev/zero > /dev/null Enter a number: You entered: -1073743396 >How-To-Repeat: See attachment. >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: text/plain; name="ttybug.cc" Content-Disposition: inline; filename="ttybug.cc" #include int main() { using namespace std; ifstream in ("/dev/tty"); ofstream out ("/dev/tty"); in.tie(&out); out << "Enter a number: "; int i; in >> i; out << "You entered: " << i << endl; return 0; }