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From: paolo@gcc.gnu.org To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, paolo@gcc.gnu.org, schmid@snake.iap.physik.tu-darmstadt.de Subject: Re: libstdc++/5133: Problems with toupper Date: Sun, 16 Dec 2001 13:53:00 -0000 [thread overview] Message-ID: <20011216215355.19292.qmail@sources.redhat.com> (raw) Synopsis: Problems with toupper Responsible-Changed-From-To: unassigned->paolo Responsible-Changed-By: paolo Responsible-Changed-When: Sun Dec 16 13:53:55 2001 Responsible-Changed-Why: Taking care of this. State-Changed-From-To: open->feedback State-Changed-By: paolo State-Changed-When: Sun Dec 16 13:53:55 2001 State-Changed-Why: Hi Peter, in Josuttis, pp. 499 and 718 I find an explanation of what is happening with your testcase. In a nutshell, tolower and toupper are old C functions (you may use them through cctype) whereas std::toupper(c, loc) (and the corresponding tolower) are global functions of the C++ locales. Therefore, your testcase should be changed to: #include <string> #include <iostream> #include <algorithm> #include <cctype> int main() { std::string s("Hallo"); //std::transform (s.begin(), s.end(), s.begin(), std::tolower); //std::transform (s.begin(), s.end(), s.begin(), ::tolower); std::transform (s.begin(), s.end(), s.begin(), tolower); std::cout << "lowered: " << s << std::endl; } which indeed compiles and runs fine. Ok? Cheers, Paolo. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5133
next reply other threads:[~2001-12-16 21:53 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2001-12-16 13:53 paolo [this message] -- strict thread matches above, loose matches on Subject: below -- 2002-11-22 14:46 Pete Ratzlaff 2002-11-22 13:48 Martin Sebor 2002-11-22 5:43 Phil Edwards 2002-11-22 5:41 Pete Ratzlaff 2002-11-22 5:11 Pete Ratzlaff 2002-10-31 16:08 paolo 2002-06-27 23:14 Christopher Currie 2001-12-17 8:06 Philip Martin 2001-12-16 17:46 Martin Sebor 2001-12-16 15:46 Peter Schmid 2001-12-16 13:16 Peter Schmid
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