I am just wondering what is the most elegant and efficient way to do
such type conversion.
Thanks,
Flyingway
6  4271 
"Flyingaway " <hh*******@hotm ail.com> wrote in message
news:11******** **************@ l41g2000cwc.goo glegroups.com.. . I am just wondering what is the most elegant and efficient way to do
such type conversion.
Consider using boost::lexical_ cast
See: http://www.boost.org/libs/conversion/lexical_cast.htm
For maximum efficiency, one could use a statically allocated
buffer and the functions atof (in <cstdlib>) and ftoa(when
available, otherwise sprintf). But for the latter you need
to be very careful with buffer overflows - using snprintf
may help...
-- http://ivan.vecerina.com/contact/?subject=NG_POST <- email contact form
Hi Ivan,
That is so helpful! You are greatly appreciated. Thanks.
Best wishes,
Flying...
Ivan Vecerina wrote: "Flyingaway " <hh*******@hotm ail.com> wrote in message
news:11******** **************@ l41g2000cwc.goo glegroups.com.. .I am just wondering what is the most elegant and efficient way to do
such type conversion.
Consider using boost::lexical_ cast
See: http://www.boost.org/libs/conversion/lexical_cast.htm
For maximum efficiency, one could use a statically allocated
buffer and the functions atof (in <cstdlib>) and ftoa(when
available, otherwise sprintf). But for the latter you need
to be very careful with buffer overflows - using snprintf
may help...
Why not just use a stringstream? Something like:
#include <sstream>
....
std::stringstre am ss;
....
// Cast to float...
ss << some_string;
ss >> some_float;
....
// Cast to string...
ss >> some_float;
ss << some_string;
....
No third party library or C functions needed...
Stu
Stu wrote: // Cast to string...
ss >> some_float;
ss << some_string;
Whoops, copy and paste error! It should look like this:
// Cast to string...
ss << some_float;
ss >> some_string;
Stu
"Stu" <st*@santa-li.com> wrote in message
news:0Z******** ************@co mcast.com... Ivan Vecerina wrote:
"Flyingaway " <hh*******@hotm ail.com> wrote in message
news:11******** **************@ l41g2000cwc.goo glegroups.com.. .I am just wondering what is the most elegant and efficient way to do
such type conversion. Consider using boost::lexical_ cast
See: http://www.boost.org/libs/conversion/lexical_cast.htm
Seemed to be the most elegant.
For maximum efficiency, one could use a statically allocated
buffer and the functions atof (in <cstdlib>) and ftoa(when
available, otherwise sprintf). But for the latter you need
to be very careful with buffer overflows - using snprintf
may help...
That was for the most efficient.
Why not just use a stringstream? Something like:
I totally agree it's a good solution (and it is actually
boost::lexical_ cast uses by default). I had narrowly
answered the question that was posted...
Cheers,
Ivan
-- http://ivan.vecerina.com/contact/?subject=NG_POST <- email contact form
On Sat, 19 Feb 2005 08:59:05 +0100, "Ivan Vecerina"
<IN************ *************@v ecerina.com> wrote in comp.lang.c++: "Flyingaway " <hh*******@hotm ail.com> wrote in message
news:11******** **************@ l41g2000cwc.goo glegroups.com.. .I am just wondering what is the most elegant and efficient way to do
such type conversion.
Consider using boost::lexical_ cast
See: http://www.boost.org/libs/conversion/lexical_cast.htm
For maximum efficiency, one could use a statically allocated
buffer and the functions atof (in <cstdlib>) and ftoa(when
available, otherwise sprintf). But for the latter you need
to be very careful with buffer overflows - using snprintf
may help...
Poor advice, atof and its siblings produce undefined behavior if the
converted value is outside the range of the type.
That is specifically why the strtod and siblings were invented.
--
Jack Klein
Home: http://JK-Technology.Com
FAQs for
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