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From: paolo@gcc.gnu.org To: doerntge@kiwilogic.com, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org Subject: Re: libstdc++/5424: std::ifstream::operator>>(int&) fails with negative hex numbers Date: Fri, 18 Jan 2002 13:51:00 -0000 [thread overview] Message-ID: <20020118215100.14155.qmail@sources.redhat.com> (raw) Synopsis: std::ifstream::operator>>(int&) fails with negative hex numbers State-Changed-From-To: feedback->analyzed State-Changed-By: paolo State-Changed-When: Fri Jan 18 13:51:00 2002 State-Changed-Why: The testcase: #include <fstream> #include <iostream> bool stream_in( void ) { std::ifstream is( "foo.txt" ); is.setf( std::ios::hex, std::ios::basefield ); int i=0; if ( !(is.good() && is.is_open()) ) return false; is >> i; if ( !is ) return false; if ( is.peek() == '\n' ) is.ignore(); if ( !is ) return false; is >> i; if ( !is ) return false; if ( is.peek() == '\n' ) is.ignore(); if ( !is ) return false; return true; } bool stream_out( void ) { std::ofstream os( "foo.txt" ); os.setf( std::ios::hex, std::ios::basefield ); if ( !(os.good() && os.is_open()) ) return false; os << -42 << '\n' << 42 << '\n'; return true; } int main( int argc, char*argv[] ) { if ( !stream_out() ) std::cerr << "std::ostream failed" << std::endl; else if ( !stream_in() ) std::cerr << "std::istream failed" << std::endl; return 0; } http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5424
next reply other threads:[~2002-01-18 21:51 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-01-18 13:51 paolo [this message] -- strict thread matches above, loose matches on Subject: below -- 2002-01-19 14:10 paolo 2002-01-18 5:04 paolo
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