What's
locale loc;
for? Can't you just do ...
Code:#include <iostream> #include <string> using namespace std; int main() { string thing = "asdf"; cout<< endl << thing; for ( int i=0; i<4; i++ ) { thing[i] = toupper( (int) thing[i] ); } cout<< endl << thing; return 0; }
Out of the two methods, only twormers worked.
But that one only converts the first letter.
How can I convert them all ?
(Sorry if i'm bieng stupid here, and have missed something obvious.)
Converts all the letters when I run it...
[update]
That locale loc seems very wrong - toupper takes only 1 argument
[/update]
Last edited by Richie T; 05-19-2006 at 10:39 AM.
No No's:
fflush (stdin); gets (); void main ();
Goodies:
Example of fgets (); The FAQ, C/C++ Reference
My Gear:
OS - Windows XP
IDE - MS Visual C++ 2008 Express Edition
ASCII stupid question, get a stupid ANSI
Just incase this makes a difference, there are some numbers in between the letters I wish to convert.
Dunno if this matters or not.
No it shouldn't matter - you can test this in twomers program
by replacing the "asdf" with "1234" - output is unchanged for
numbers.
No No's:
fflush (stdin); gets (); void main ();
Goodies:
Example of fgets (); The FAQ, C/C++ Reference
My Gear:
OS - Windows XP
IDE - MS Visual C++ 2008 Express Edition
ASCII stupid question, get a stupid ANSI
I think you can just use std::transform() here:
Code:#include <algorithm> // for std::transform #include <string> // for std::string #include <cctype> // for toupper #include <iostream> // for std::cout and std::endl int main() { std::string str = "asdf123"; std::cout << str << std::endl; std::transform(str.begin(), str.end(), str.begin(), toupper); std::cout << str << std::endl; }
Last edited by laserlight; 05-19-2006 at 11:16 AM.
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
It's been a while since I googled this one, but I seem to remember some kind of issues with that.
http://groups.google.com/group/comp....f0e60773407338
7. It is easier to write an incorrect program than understand a correct one.
40. There are two ways to write error-free programs; only the third one works.*
Yep, on a hunch that there might be a problem I tested with both the MinGW port of GCC and MSVC8. std::toupper gave no compilation problems with MSVC8, but choked on GCC. The old C toupper worked in both cases.It's been a while since I googled this one, but I seem to remember some kind of issues with that.
I did a check in Josuttis' The C++ Standard Library, and his example (chapter 11, section 2.13) was the same as my modified version, with the condition that the global locale is used.
Last edited by laserlight; 05-19-2006 at 11:29 AM.
Look up a C++ Reference and learn How To Ask Questions The Smart Way
How come transform only works if your'e not using namespace std ?
My guess would be that the using declaration brings std::toupper into scope, so you then face the same problem as I did with the MinGW port of GCC.How come transform only works if your'e not using namespace std ?
Look up a C++ Reference and learn How To Ask Questions The Smart Way
>Oh, but is there a way to do it in lower case.
Are you wanting the hex output in lowercase? If yes, you can just leave out the uppercase flag:
At any rate, std::transform and std::tolower are worth learning.Code:ss << hex << static_cast<unsigned int> (my_string[i]);
Yeah, the previously mentioned method worked.
Cheers swoopy, owe you one.
You used 5 full stops in your postI think they're known as "periods" in the US.
Ah. Sorry I'm from England.
