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Hi,
I was wondering if there was a way to copy a float to a string. My current technique (until i figure out a better one) is to load the float into a file from ofstream and then read it back in as a string from ifstream. It's extremely dodgy I know. Any help appreciated.
Use a string stream:If you are using C style strings, then try sprintf or look in the FAQ.Code:#include <iostream>
#include <sstream>
#include <string>
int main()
{
float f = 2.345f;
std::ostringstream ostr;
ostr << f;
std::string newStr = ostr.str();
std::cout << newStr;
}
look up ftoa()
ftoa is not standard, but an MS extension.
If the ostringstream syntax is too long for you, try Boost.LexicalCast.
http://www.boost.org/
What does std:: do? I've been trying to look it up in my book, but I can't find anything about it, other than the 'using namespace std;' part.
I explain what namespaces (such as std) are here:
http://stud3.tuwien.ac.at/~e0226430/...mp_start.xhtml
Since it's true XHTML, IE can't view it.
What should I use to view it?
Firefox, Mozilla, Opera...
Any good browsers.
Which one of those would you recommend I use?Quote:
Originally Posted by CornedBee
Well, Opera has those banners unless you pay, so I've never even tried it. I use Mozilla, because it comes with a mail client and the two are really well integrated. If you don't care for that, get Firefox.
www.getfirefox.com
I'll do that. Thanks for the help.
Honestly, try both...
I find Opera much faster than IE, and it also has a mail client, and I like very much the interface.
> std::istringstream istr;
One comment, I think it needs to be an ostringstream.
:o Thank you... you are right... I updated the original post.Quote:
Originally Posted by swoopy
[EDIT] - Forgot to add this link with a very nice examples of float to string and string to float (or any other type) code:
http://www.parashift.com/c++-faq-lit...al-issues.html
38.1 applies to this question, but 38.1-38.3 are all appropriate to the topic.